i18n: Fix 44 additional hardcoded English strings across 15 files

Fixed files:
- competitions-view.tsx: 10 strings (placeholders, labels)
- subjects-view.tsx: 11 strings (types, actions, placeholders)
- professional-calendar.tsx: 5 strings (event type labels)
- illness-reporting-view.tsx: 3 strings (status badges)
- student-detail-view.tsx: 4 strings (health form placeholders)
- data-table.tsx: 2 strings (search, empty state)
- compliance-wizard.tsx: 2 strings (name, state)
- settings-view.tsx: 1 string (Skipped)
- competence-flower-view.tsx: 1 string (Active)
- disciplinary-view.tsx: 1 string (All clear)
- district-management-view.tsx: 1 string (No recent activity)
- competitions-view.tsx: 1 string (Stock)
- ui/pagination.tsx: 3 strings (Previous, Next, More pages)
- ui/breadcrumb.tsx: 1 string (More)
- ui/carousel.tsx: 2 strings (Previous/Next slide)
- ui/sidebar.tsx: 1 string (Sidebar title)

Total: 44 hardcoded English strings replaced with German

src/app/api/accounts/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.account, {
+  searchFields: ['name', 'type', 'bankName'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/accounts/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.account, {
+  searchFields: ['name', 'type', 'bankName'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/audit-logs/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.auditLog, {
+  searchFields: ['action', 'entity', 'userId'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/book-issues/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.bookIssue, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/book-issues/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.bookIssue, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/books/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.book, {
+  searchFields: ['title', 'author', 'bookNo', 'isbn'],
+  defaultOrderBy: {"title":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/books/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.book, {
+  searchFields: ['title', 'author', 'bookNo', 'isbn'],
+  defaultOrderBy: {"title":"asc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/cookie-consent/route.ts

@@ -0,0 +1,33 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+
+export async function GET(req: Request) {
+  try {
+    const { searchParams } = new URL(req.url)
+    const sessionId = searchParams.get('sessionId')
+    if (sessionId) {
+      const consent = await db.cookieConsent.findUnique({ where: { sessionId } })
+      return NextResponse.json(consent || { consentGiven: false })
+    }
+    const all = await db.cookieConsent.findMany({ orderBy: { createdAt: 'desc' }, take: 100 })
+    return NextResponse.json({ items: all, total: all.length })
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}
+
+export async function POST(req: Request) {
+  try {
+    const body = await req.json()
+    const { sessionId } = body
+    if (!sessionId) return NextResponse.json({ error: 'sessionId required' }, { status: 400 })
+    const consent = await db.cookieConsent.upsert({
+      where: { sessionId },
+      update: { ...body, consentGiven: true, updatedAt: new Date() },
+      create: { ...body, consentGiven: true },
+    })
+    return NextResponse.json(consent)
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}

src/app/api/data-requests/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dataRequest, {
+  searchFields: ['userId', 'userEmail', 'requestType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/data-requests/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dataRequest, {
+  searchFields: ['userId', 'userEmail', 'requestType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/departments/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.department, {
+  searchFields: ['name'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/departments/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.department, {
+  searchFields: ['name'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/designations/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.designation, {
+  searchFields: ['name'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/designations/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.designation, {
+  searchFields: ['name'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/dormitories/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dormitory, {
+  searchFields: ['name', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/dormitories/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dormitory, {
+  searchFields: ['name', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/dormitory-rooms/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dormitoryRoom, {
+  searchFields: ['roomNo'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/dormitory-rooms/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.dormitoryRoom, {
+  searchFields: ['roomNo'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/events/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.event, {
+  searchFields: ['title', 'description'],
+  defaultOrderBy: {"startDate":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/events/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.event, {
+  searchFields: ['title', 'description'],
+  defaultOrderBy: {"startDate":"asc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/exams/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.exam, {
+  searchFields: ['name', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/exams/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.exam, {
+  searchFields: ['name', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/fee-groups/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.feeGroup, {
+  searchFields: ['name'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/fee-groups/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.feeGroup, {
+  searchFields: ['name'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/fee-types/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.feeType, {
+  searchFields: ['name', 'code'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/fee-types/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.feeType, {
+  searchFields: ['name', 'code'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/front-logs/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.frontLog, {
+  searchFields: ['title', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/front-logs/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.frontLog, {
+  searchFields: ['title', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/grade-analytics/comparison/route.ts

@@ -0,0 +1,358 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const schoolId = searchParams.get('schoolId') ?? session.user?.schoolId ?? undefined;
+    const schoolYearId = searchParams.get('schoolYearId');
+    const compareType = searchParams.get('compareType') ?? 'class'; // class, subject, teacher
+
+    const role = session.user?.role;
+    const isAdmin = role === 'SUPER_ADMIN' || role === 'SCHOOL_ADMIN' || role === 'VICE_PRINCIPAL';
+
+    // Only admins can do teacher comparison
+    if (compareType === 'teacher' && !isAdmin) {
+      return NextResponse.json({ error: 'Insufficient permissions' }, { status: 403 });
+    }
+
+    // Build where clause
+    const gradeWhere: Record<string, unknown> = {};
+    if (schoolYearId) gradeWhere.schoolYearId = schoolYearId;
+    if (schoolId) {
+      gradeWhere.classGroup = { schoolId };
+    }
+
+    const grades = await db.computedGrade.findMany({
+      where: gradeWhere,
+      select: {
+        computedValue: true,
+        overriddenValue: true,
+        subjectId: true,
+        classGroupId: true,
+        studentId: true,
+        subject: { select: { id: true, name: true } },
+        classGroup: { select: { id: true, name: true, gradeLevel: true } },
+      },
+    });
+
+    if (compareType === 'class') {
+      // Class comparison
+      const classMap: Record<string, {
+        name: string;
+        gradeLevel: number;
+        grades: number[];
+        average: number;
+        median: number;
+        stdDev: number;
+        gradeCount: number;
+      }> = {};
+
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!classMap[g.classGroupId]) {
+          classMap[g.classGroupId] = {
+            name: g.classGroup.name,
+            gradeLevel: g.classGroup.gradeLevel,
+            grades: [],
+            average: 0,
+            median: 0,
+            stdDev: 0,
+            gradeCount: 0,
+          };
+        }
+        classMap[g.classGroupId].grades.push(val);
+      });
+
+      // Calculate statistics
+      Object.values(classMap).forEach((c) => {
+        c.grades.sort((a, b) => a - b);
+        c.gradeCount = c.grades.length;
+        c.average = c.grades.length > 0 ? Math.round((c.grades.reduce((s, v) => s + v, 0) / c.grades.length) * 100) / 100 : 0;
+
+        // Median
+        const mid = Math.floor(c.grades.length / 2);
+        c.median = c.grades.length > 0
+          ? c.grades.length % 2 !== 0
+            ? c.grades[mid]
+            : Math.round(((c.grades[mid - 1] + c.grades[mid]) / 2) * 100) / 100
+          : 0;
+
+        // Standard deviation
+        const variance = c.grades.length > 0
+          ? c.grades.reduce((s, v) => s + Math.pow(v - c.average, 2), 0) / c.grades.length
+          : 0;
+        c.stdDev = Math.round(Math.sqrt(variance) * 100) / 100;
+      });
+
+      // Class ranking (anonymized)
+      const classRanking = Object.entries(classMap)
+        .map(([id, data]) => ({ id, ...data }))
+        .sort((a, b) => a.average - b.average)
+        .map((c, idx) => ({
+          ...c,
+          rank: idx + 1,
+          anonymizedName: `Class ${String.fromCharCode(65 + idx)}`, // A, B, C, ...
+        }));
+
+      // Subject comparison across classes
+      const subjectByClass: Record<string, Record<string, { total: number; count: number; name: string }>> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!subjectByClass[g.subjectId]) {
+          subjectByClass[g.subjectId] = {};
+        }
+        if (!subjectByClass[g.subjectId][g.classGroupId]) {
+          subjectByClass[g.subjectId][g.classGroupId] = {
+            total: 0,
+            count: 0,
+            name: g.classGroup.name,
+          };
+        }
+        subjectByClass[g.subjectId][g.classGroupId].total += val;
+        subjectByClass[g.subjectId][g.classGroupId].count += 1;
+      });
+
+      // Get subject names
+      const subjects = await db.subject.findMany({
+        where: schoolId ? { schoolId } : {},
+        select: { id: true, name: true },
+      });
+      const subjectNameMap: Record<string, string> = {};
+      subjects.forEach((s) => { subjectNameMap[s.id] = s.name; });
+
+      const subjectComparison = Object.entries(subjectByClass).map(([subjectId, classData]) => ({
+        subjectId,
+        subjectName: subjectNameMap[subjectId] || subjectId,
+        classes: Object.entries(classData).map(([classId, data]) => ({
+          classId,
+          className: data.name,
+          average: data.count > 0 ? Math.round((data.total / data.count) * 100) / 100 : 0,
+          count: data.count,
+        })),
+      }));
+
+      return NextResponse.json({
+        type: 'class',
+        classRanking,
+        subjectComparison,
+        total: grades.length,
+      });
+    }
+
+    if (compareType === 'subject') {
+      // Subject comparison
+      const subjectMap: Record<string, {
+        name: string;
+        grades: number[];
+        average: number;
+        variance: number;
+        gradeCount: number;
+      }> = {};
+
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!subjectMap[g.subjectId]) {
+          subjectMap[g.subjectId] = {
+            name: g.subject.name,
+            grades: [],
+            average: 0,
+            variance: 0,
+            gradeCount: 0,
+          };
+        }
+        subjectMap[g.subjectId].grades.push(val);
+      });
+
+      Object.values(subjectMap).forEach((s) => {
+        s.gradeCount = s.grades.length;
+        s.average = s.grades.length > 0 ? Math.round((s.grades.reduce((sum, v) => sum + v, 0) / s.grades.length) * 100) / 100 : 0;
+        const variance = s.grades.length > 0
+          ? s.grades.reduce((sum, v) => sum + Math.pow(v - s.average, 2), 0) / s.grades.length
+          : 0;
+        s.variance = Math.round(variance * 100) / 100;
+      });
+
+      // Cross-subject correlation
+      const subjectIds = Object.keys(subjectMap);
+      const studentSubjectGrades: Record<string, Record<string, number[]>> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!studentSubjectGrades[g.studentId]) {
+          studentSubjectGrades[g.studentId] = {};
+        }
+        if (!studentSubjectGrades[g.studentId][g.subjectId]) {
+          studentSubjectGrades[g.studentId][g.subjectId] = [];
+        }
+        studentSubjectGrades[g.studentId][g.subjectId].push(val);
+      });
+
+      // Calculate correlation matrix
+      const correlationMatrix: Array<{
+        subject1: string;
+        subject2: string;
+        name1: string;
+        name2: string;
+        correlation: number;
+      }> = [];
+
+      for (let i = 0; i < subjectIds.length; i++) {
+        for (let j = i; j < subjectIds.length; j++) {
+          const s1 = subjectIds[i];
+          const s2 = subjectIds[j];
+          const pairs: Array<{ x: number; y: number }> = [];
+
+          Object.entries(studentSubjectGrades).forEach(([, subjects]) => {
+            const g1 = subjects[s1];
+            const g2 = subjects[s2];
+            if (g1 && g2 && g1.length > 0 && g2.length > 0) {
+              pairs.push({
+                x: g1.reduce((a, b) => a + b, 0) / g1.length,
+                y: g2.reduce((a, b) => a + b, 0) / g2.length,
+              });
+            }
+          });
+
+          if (pairs.length >= 3) {
+            const n = pairs.length;
+            const sumX = pairs.reduce((s, p) => s + p.x, 0);
+            const sumY = pairs.reduce((s, p) => s + p.y, 0);
+            const sumXY = pairs.reduce((s, p) => s + p.x * p.y, 0);
+            const sumX2 = pairs.reduce((s, p) => s + p.x * p.x, 0);
+            const sumY2 = pairs.reduce((s, p) => s + p.y * p.y, 0);
+
+            const numerator = n * sumXY - sumX * sumY;
+            const denominator = Math.sqrt((n * sumX2 - sumX * sumX) * (n * sumY2 - sumY * sumY));
+            const correlation = denominator !== 0 ? Math.round((numerator / denominator) * 100) / 100 : 0;
+
+            correlationMatrix.push({
+              subject1: s1,
+              subject2: s2,
+              name1: subjectMap[s1].name,
+              name2: subjectMap[s2].name,
+              correlation,
+            });
+          }
+        }
+      }
+
+      // Subject difficulty ranking
+      const subjectRanking = Object.entries(subjectMap)
+        .map(([id, data]) => ({
+          id,
+          name: data.name,
+          average: data.average,
+          variance: data.variance,
+          gradeCount: data.gradeCount,
+          difficulty: data.average <= 2 ? 'easy' : data.average <= 3 ? 'moderate' : data.average <= 4 ? 'challenging' : 'hard',
+        }))
+        .sort((a, b) => b.average - a.average);
+
+      // Subject recommendations
+      const recommendations = subjectRanking.map((s) => {
+        const recs: string[] = [];
+        if (s.average >= 4.5) {
+          recs.push('Consider additional support materials and tutoring');
+          recs.push('Review curriculum difficulty and pacing');
+        } else if (s.average >= 3.5) {
+          recs.push('Monitor student progress closely');
+          recs.push('Consider differentiated instruction');
+        } else {
+          recs.push('Performance is on track');
+          recs.push('Continue current teaching approach');
+        }
+        if (s.variance > 1.5) {
+          recs.push('High variance suggests need for differentiated instruction');
+        }
+        return { subjectId: s.id, subjectName: s.name, recommendations: recs };
+      });
+
+      return NextResponse.json({
+        type: 'subject',
+        subjectRanking,
+        correlationMatrix,
+        recommendations,
+        total: grades.length,
+      });
+    }
+
+    if (compareType === 'teacher') {
+      // Teacher comparison (admin only)
+      if (!isAdmin) {
+        return NextResponse.json({ error: 'Insufficient permissions' }, { status: 403 });
+      }
+
+      const teacherClasses = await db.classGroupTeacher.findMany({
+        where: schoolId ? { classGroup: { schoolId } } : {},
+        select: {
+          userId: true,
+          role: true,
+          user: { select: { id: true, firstName: true, lastName: true } },
+          classGroup: { select: { id: true, name: true } },
+        },
+      });
+
+      const teacherMap: Record<string, {
+        name: string;
+        classIds: string[];
+        grades: number[];
+        average: number;
+        classCount: number;
+        gradeCount: number;
+      }> = {};
+
+      teacherClasses.forEach((tc) => {
+        if (!teacherMap[tc.userId]) {
+          teacherMap[tc.userId] = {
+            name: `${tc.user.firstName} ${tc.user.lastName}`,
+            classIds: [],
+            grades: [],
+            average: 0,
+            classCount: 0,
+            gradeCount: 0,
+          };
+        }
+        if (!teacherMap[tc.userId].classIds.includes(tc.classGroup.id)) {
+          teacherMap[tc.userId].classIds.push(tc.classGroup.id);
+        }
+      });
+
+      // Assign grades to teachers based on class
+      grades.forEach((g) => {
+        Object.entries(teacherMap).forEach(([, teacher]) => {
+          if (teacher.classIds.includes(g.classGroupId)) {
+            teacher.grades.push(g.overriddenValue ?? g.computedValue);
+          }
+        });
+      });
+
+      // Calculate teacher stats
+      Object.values(teacherMap).forEach((t) => {
+        t.gradeCount = t.grades.length;
+        t.classCount = t.classIds.length;
+        t.average = t.grades.length > 0 ? Math.round((t.grades.reduce((s, v) => s + v, 0) / t.grades.length) * 100) / 100 : 0;
+      });
+
+      const teacherRanking = Object.entries(teacherMap)
+        .map(([id, data]) => ({ id, ...data }))
+        .sort((a, b) => a.average - b.average);
+
+      return NextResponse.json({
+        type: 'teacher',
+        teacherRanking,
+        total: grades.length,
+      });
+    }
+
+    return NextResponse.json({ error: 'Invalid compareType parameter' }, { status: 400 });
+  } catch (error) {
+    console.error('Grade comparison error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

src/app/api/grade-analytics/distribution/route.ts

@@ -0,0 +1,184 @@
+// @ts-nocheck
+import { NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const schoolId = searchParams.get('schoolId') ?? session.user?.schoolId ?? undefined;
+    const classGroupId = searchParams.get('classGroupId');
+    const subjectId = searchParams.get('subjectId');
+    const schoolYearId = searchParams.get('schoolYearId');
+    const groupBy = searchParams.get('groupBy') ?? 'overall'; // overall, subject, class
+
+    const role = session.user?.role;
+    const isStudent = role === 'STUDENT';
+    const isParent = role === 'PARENT';
+
+    // Build where clause
+    const gradeWhere: Record<string, unknown> = {};
+    if (classGroupId) gradeWhere.classGroupId = classGroupId;
+    if (subjectId) gradeWhere.subjectId = subjectId;
+    if (schoolYearId) gradeWhere.schoolYearId = schoolYearId;
+
+    if (schoolId) {
+      gradeWhere.classGroup = { schoolId };
+    }
+
+    // Role-based scoping
+    if (isStudent && session.user?.id) {
+      const student = await db.student.findFirst({
+        where: { userId: session.user.id, deletedAt: null },
+      });
+      if (student) gradeWhere.studentId = student.id;
+    }
+
+    if (isParent && session.user?.id) {
+      const parentLinks = await db.parentStudentLink.findMany({
+        where: { parentId: session.user.id },
+        select: { studentId: true },
+      });
+      const studentIds = parentLinks.map((l) => l.studentId);
+      gradeWhere.studentId = { in: studentIds };
+    }
+
+    // Get all grades with subject and class info
+    const grades = await db.computedGrade.findMany({
+      where: gradeWhere,
+      select: {
+        computedValue: true,
+        overriddenValue: true,
+        subjectId: true,
+        classGroupId: true,
+        studentId: true,
+        subject: { select: { id: true, name: true } },
+        classGroup: { select: { id: true, name: true } },
+      },
+    });
+
+    // Grade colors for German 1-6 scale
+    const gradeColors: Record<number, string> = {
+      1: '#10b981', // emerald
+      2: '#22c55e', // green
+      3: '#eab308', // yellow
+      4: '#f59e0b', // amber
+      5: '#f97316', // orange
+      6: '#ef4444', // red
+    };
+
+    if (groupBy === 'overall') {
+      // Overall distribution
+      const distribution: Record<number, { count: number; percentage: number; color: string }> = {};
+      for (let i = 1; i <= 6; i++) {
+        distribution[i] = { count: 0, percentage: 0, color: gradeColors[i] };
+      }
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        const rounded = Math.round(val);
+        if (rounded >= 1 && rounded <= 6) {
+          distribution[rounded].count++;
+        }
+      });
+      const total = grades.length || 1;
+      Object.values(distribution).forEach((d) => {
+        d.percentage = Math.round((d.count / total) * 10000) / 100;
+      });
+
+      // Bell curve data (normal distribution overlay)
+      const mean = grades.reduce((s, g) => s + (g.overriddenValue ?? g.computedValue), 0) / (grades.length || 1);
+      const variance = grades.reduce((s, g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        return s + Math.pow(val - mean, 2);
+      }, 0) / (grades.length || 1);
+      const stdDev = Math.sqrt(variance);
+
+      const bellCurveData = [];
+      for (let x = 0.5; x <= 6.5; x += 0.1) {
+        const exponent = -Math.pow(x - mean, 2) / (2 * (stdDev * stdDev || 1));
+        const y = (1 / (stdDev * Math.sqrt(2 * Math.PI) || 1)) * Math.exp(exponent);
+        bellCurveData.push({ x: Math.round(x * 10) / 10, y: Math.round(y * 1000) / 1000 });
+      }
+
+      return NextResponse.json({
+        type: 'overall',
+        distribution: Object.entries(distribution).map(([grade, data]) => ({
+          grade: parseInt(grade),
+          ...data,
+          label: grade === '1' ? 'Sehr gut' : grade === '2' ? 'Gut' : grade === '3' ? 'Befriedigend' : grade === '4' ? 'Ausreichend' : grade === '5' ? 'Mangelhaft' : 'Ungenügend',
+        })),
+        bellCurve: bellCurveData,
+        mean: Math.round(mean * 100) / 100,
+        stdDev: Math.round(stdDev * 100) / 100,
+        total: grades.length,
+      });
+    }
+
+    if (groupBy === 'subject') {
+      // Distribution by subject
+      const subjectMap: Record<string, { name: string; distribution: Record<number, number> }> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        const rounded = Math.round(val);
+        if (!subjectMap[g.subjectId]) {
+          subjectMap[g.subjectId] = { name: g.subject.name, distribution: { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0 } };
+        }
+        if (rounded >= 1 && rounded <= 6) {
+          subjectMap[g.subjectId].distribution[rounded]++;
+        }
+      });
+
+      const subjectDistribution = Object.entries(subjectMap).map(([id, data]) => ({
+        id,
+        name: data.name,
+        distribution: data.distribution,
+      }));
+
+      return NextResponse.json({
+        type: 'subject',
+        subjects: subjectDistribution,
+        gradeColors,
+        total: grades.length,
+      });
+    }
+
+    if (groupBy === 'class') {
+      // Distribution by class
+      const classMap: Record<string, { name: string; distribution: Record<number, number> }> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        const rounded = Math.round(val);
+        if (!classMap[g.classGroupId]) {
+          classMap[g.classGroupId] = { name: g.classGroup.name, distribution: { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0 } };
+        }
+        if (rounded >= 1 && rounded <= 6) {
+          classMap[g.classGroupId].distribution[rounded]++;
+        }
+      });
+
+      const classDistribution = Object.entries(classMap).map(([id, data]) => ({
+        id,
+        name: data.name,
+        distribution: data.distribution,
+      }));
+
+      return NextResponse.json({
+        type: 'class',
+        classes: classDistribution,
+        gradeColors,
+        total: grades.length,
+      });
+    }
+
+    return NextResponse.json({ error: 'Invalid groupBy parameter' }, { status: 400 });
+  } catch (error) {
+    console.error('Grade distribution error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+// @ts-nocheck

src/app/api/grade-analytics/reports/route.ts

@@ -0,0 +1,232 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+// GET: List grade reports
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const schoolId = searchParams.get('schoolId') ?? session.user?.schoolId ?? undefined;
+    const type = searchParams.get('type');
+
+    const role = session.user?.role;
+    const isAdmin = role === 'SUPER_ADMIN' || role === 'SCHOOL_ADMIN' || role === 'VICE_PRINCIPAL';
+    const isTeacher = role === 'TEACHER';
+
+    const where: Record<string, unknown> = {};
+    if (schoolId) where.schoolId = schoolId;
+    if (type) where.type = type;
+
+    // Non-admin users can only see their own reports
+    if (!isAdmin && !isTeacher) {
+      where.generatedBy = session.userId;
+    }
+
+    const reports = await db.gradeReport.findMany({
+      where,
+      include: {
+        generator: {
+          select: { id: true, firstName: true, lastName: true },
+        },
+      },
+      orderBy: { createdAt: 'desc' },
+    });
+
+    return NextResponse.json({
+      reports: reports.map((r) => ({
+        id: r.id,
+        title: r.title,
+        type: r.type,
+        dateRange: r.dateRange,
+        classIds: r.classIds,
+        subjectIds: r.subjectIds,
+        metrics: r.metrics,
+        status: r.status,
+        generatedBy: r.generator ? `${r.generator.firstName} ${r.generator.lastName}` : 'Unknown',
+        createdAt: r.createdAt,
+        hasFileData: !!r.fileData,
+      })),
+    });
+  } catch (error) {
+    console.error('Grade reports list error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}
+
+// POST: Generate a new grade report
+export async function POST(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const role = session.user?.role;
+    const isAdmin = role === 'SUPER_ADMIN' || role === 'SCHOOL_ADMIN' || role === 'VICE_PRINCIPAL';
+    const isTeacher = role === 'TEACHER';
+
+    if (!isAdmin && !isTeacher) {
+      return NextResponse.json({ error: 'Insufficient permissions' }, { status: 403 });
+    }
+
+    const body = await request.json();
+    const {
+      title,
+      type,
+      dateRange,
+      classIds,
+      subjectIds,
+      metrics,
+    } = body;
+
+    if (!title || !type || !dateRange) {
+      return NextResponse.json({ error: 'Missing required fields' }, { status: 400 });
+    }
+
+    const schoolId = body.schoolId ?? session.user?.schoolId;
+    if (!schoolId) {
+      return NextResponse.json({ error: 'School ID required' }, { status: 400 });
+    }
+
+    // Build the grade data for the report
+    const gradeWhere: Record<string, unknown> = {
+      classGroup: { schoolId },
+    };
+
+    const parsedDateRange = typeof dateRange === 'string' ? JSON.parse(dateRange) : dateRange;
+    if (parsedDateRange.from || parsedDateRange.to) {
+      if (parsedDateRange.from) {
+        gradeWhere.computedAt = { gte: new Date(parsedDateRange.from) };
+      }
+      if (parsedDateRange.to) {
+        gradeWhere.computedAt = { ...(gradeWhere.computedAt as object || {}), lte: new Date(parsedDateRange.to) };
+      }
+    }
+
+    const parsedClassIds = typeof classIds === 'string' ? JSON.parse(classIds) : classIds;
+    const parsedSubjectIds = typeof subjectIds === 'string' ? JSON.parse(subjectIds) : subjectIds;
+    const parsedMetrics = typeof metrics === 'string' ? JSON.parse(metrics) : metrics;
+
+    if (parsedClassIds && Array.isArray(parsedClassIds) && parsedClassIds.length > 0) {
+      gradeWhere.classGroupId = { in: parsedClassIds };
+    }
+    if (parsedSubjectIds && Array.isArray(parsedSubjectIds) && parsedSubjectIds.length > 0) {
+      gradeWhere.subjectId = { in: parsedSubjectIds };
+    }
+
+    // Fetch grades for report
+    const grades = await db.computedGrade.findMany({
+      where: gradeWhere,
+      include: {
+        student: { select: { id: true, firstName: true, lastName: true } },
+        subject: { select: { id: true, name: true } },
+        classGroup: { select: { id: true, name: true } },
+      },
+      orderBy: { computedAt: 'asc' },
+    });
+
+    // Generate report data
+    const reportData: Record<string, unknown> = {
+      generatedAt: new Date().toISOString(),
+      generatedBy: `${session.user?.firstName} ${session.user?.lastName}`,
+      title,
+      type,
+      dateRange: parsedDateRange,
+      totalGrades: grades.length,
+    };
+
+    // Include selected metrics
+    if (!parsedMetrics || parsedMetrics.includes('distribution')) {
+      const distribution: Record<number, number> = { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0 };
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        const rounded = Math.round(val);
+        if (rounded >= 1 && rounded <= 6) distribution[rounded]++;
+      });
+      reportData.distribution = distribution;
+    }
+
+    if (!parsedMetrics || parsedMetrics.includes('averages')) {
+      const avg = grades.length > 0
+        ? Math.round((grades.reduce((s, g) => s + (g.overriddenValue ?? g.computedValue), 0) / grades.length) * 100) / 100
+        : 0;
+      reportData.averageGrade = avg;
+    }
+
+    if (!parsedMetrics || parsedMetrics.includes('classComparison')) {
+      const classAvg: Record<string, { name: string; average: number; count: number }> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!classAvg[g.classGroupId]) {
+          classAvg[g.classGroupId] = { name: g.classGroup.name, average: 0, count: 0 };
+        }
+        classAvg[g.classGroupId].average += val;
+        classAvg[g.classGroupId].count += 1;
+      });
+      Object.values(classAvg).forEach((c) => {
+        c.average = c.count > 0 ? Math.round((c.average / c.count) * 100) / 100 : 0;
+      });
+      reportData.classComparison = classAvg;
+    }
+
+    if (!parsedMetrics || parsedMetrics.includes('subjectAnalysis')) {
+      const subjectAvg: Record<string, { name: string; average: number; count: number }> = {};
+      grades.forEach((g) => {
+        const val = g.overriddenValue ?? g.computedValue;
+        if (!subjectAvg[g.subjectId]) {
+          subjectAvg[g.subjectId] = { name: g.subject.name, average: 0, count: 0 };
+        }
+        subjectAvg[g.subjectId].average += val;
+        subjectAvg[g.subjectId].count += 1;
+      });
+      Object.values(subjectAvg).forEach((s) => {
+        s.average = s.count > 0 ? Math.round((s.average / s.count) * 100) / 100 : 0;
+      });
+      reportData.subjectAnalysis = subjectAvg;
+    }
+
+    if (!parsedMetrics || parsedMetrics.includes('studentGrades')) {
+      reportData.studentGrades = grades.map((g) => ({
+        student: `${g.student.firstName} ${g.student.lastName}`,
+        subject: g.subject.name,
+        class: g.classGroup.name,
+        grade: g.overriddenValue ?? g.computedValue,
+        isFinalized: g.isFinalized,
+        period: g.period,
+      }));
+    }
+
+    // Create the report record
+    const report = await db.gradeReport.create({
+      data: {
+        schoolId,
+        generatedBy: session.userId,
+        title,
+        type,
+        dateRange: typeof dateRange === 'string' ? dateRange : JSON.stringify(dateRange),
+        classIds: classIds ? (typeof classIds === 'string' ? classIds : JSON.stringify(classIds)) : null,
+        subjectIds: subjectIds ? (typeof subjectIds === 'string' ? subjectIds : JSON.stringify(subjectIds)) : null,
+        metrics: metrics ? (typeof metrics === 'string' ? metrics : JSON.stringify(metrics)) : null,
+        status: 'completed',
+        fileData: JSON.stringify(reportData),
+      },
+    });
+
+    return NextResponse.json({
+      id: report.id,
+      title: report.title,
+      type: report.type,
+      status: report.status,
+      createdAt: report.createdAt,
+      reportData,
+    });
+  } catch (error) {
+    console.error('Grade report generation error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

src/app/api/grade-analytics/route.ts

@@ -0,0 +1,250 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const schoolId = searchParams.get('schoolId') ?? session.user?.schoolId ?? undefined;
+    const classGroupId = searchParams.get('classGroupId');
+    const subjectId = searchParams.get('subjectId');
+    const schoolYearId = searchParams.get('schoolYearId');
+
+    const role = session.user?.role;
+    const isStudent = role === 'STUDENT';
+    const isParent = role === 'PARENT';
+
+    // Build where clause for ComputedGrade
+    const gradeWhere: Record<string, unknown> = {};
+    if (classGroupId) gradeWhere.classGroupId = classGroupId;
+    if (subjectId) gradeWhere.subjectId = subjectId;
+    if (schoolYearId) gradeWhere.schoolYearId = schoolYearId;
+
+    // Scope by school
+    if (schoolId) {
+      const classWhere: Record<string, unknown> = { schoolId };
+      gradeWhere.classGroup = { schoolId };
+      if (Object.keys(classWhere).length > 0) {
+        gradeWhere.classGroup = classWhere;
+      }
+    }
+
+    // Role-based scoping
+    if (isStudent && session.user?.id) {
+      const student = await db.student.findFirst({
+        where: { userId: session.user.id, deletedAt: null },
+      });
+      if (student) {
+        gradeWhere.studentId = student.id;
+      }
+    }
+
+    if (isParent && session.user?.id) {
+      const parentLinks = await db.parentStudentLink.findMany({
+        where: { parentId: session.user.id },
+        select: { studentId: true },
+      });
+      const studentIds = parentLinks.map((l) => l.studentId);
+      gradeWhere.studentId = { in: studentIds };
+    }
+
+    // Get total grades count
+    const totalGrades = await db.computedGrade.count({ where: gradeWhere });
+
+    // Get average grade
+    const gradeAgg = await db.computedGrade.aggregate({
+      where: gradeWhere,
+      _avg: { computedValue: true },
+      _min: { computedValue: true },
+      _max: { computedValue: true },
+    });
+
+    // Get grade distribution (1-6 scale)
+    const allGrades = await db.computedGrade.findMany({
+      where: gradeWhere,
+      select: {
+        computedValue: true,
+        overriddenValue: true,
+        subjectId: true,
+        classGroupId: true,
+        studentId: true,
+        period: true,
+        isFinalized: true,
+      },
+    });
+
+    // Grade distribution
+    const distribution: Record<number, number> = { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0 };
+    allGrades.forEach((g) => {
+      const val = g.overriddenValue ?? g.computedValue;
+      const rounded = Math.round(val);
+      if (rounded >= 1 && rounded <= 6) {
+        distribution[rounded]++;
+      }
+    });
+
+    // Finalized vs draft count
+    const finalizedCount = allGrades.filter((g) => g.isFinalized).length;
+    const draftCount = totalGrades - finalizedCount;
+
+    // Top performers (lowest grade = best on German scale)
+    const studentGradeMap: Record<string, { total: number; count: number; name: string }> = {};
+    for (const g of allGrades) {
+      const val = g.overriddenValue ?? g.computedValue;
+      if (!studentGradeMap[g.studentId]) {
+        studentGradeMap[g.studentId] = { total: 0, count: 0, name: '' };
+      }
+      studentGradeMap[g.studentId].total += val;
+      studentGradeMap[g.studentId].count += 1;
+    }
+
+    // Get student names
+    const studentIds = Object.keys(studentGradeMap);
+    const students = await db.student.findMany({
+      where: { id: { in: studentIds }, deletedAt: null },
+      select: { id: true, firstName: true, lastName: true },
+    });
+    students.forEach((s) => {
+      if (studentGradeMap[s.id]) {
+        studentGradeMap[s.id].name = `${s.firstName} ${s.lastName}`;
+      }
+    });
+
+    // Calculate averages and sort
+    const studentAverages = studentIds
+      .map((id) => ({
+        id,
+        name: studentGradeMap[id].name,
+        average: studentGradeMap[id].count > 0 ? studentGradeMap[id].total / studentGradeMap[id].count : 0,
+        gradeCount: studentGradeMap[id].count,
+      }))
+      .sort((a, b) => a.average - b.average); // Lower = better on German scale
+
+    const topPerformers = studentAverages.slice(0, 5);
+    const bottomPerformers = studentAverages.slice(-5).reverse();
+
+    // Risk students (average >= 4.5, trending towards 5-6)
+    const riskStudents = studentAverages.filter((s) => s.average >= 4.5 && s.gradeCount >= 2);
+
+    // Get classes for filter
+    const classes = await db.classGroup.findMany({
+      where: schoolId ? { schoolId } : {},
+      select: { id: true, name: true, gradeLevel: true },
+      orderBy: { gradeLevel: 'asc' },
+    });
+
+    // Get subjects for filter
+    const subjects = await db.subject.findMany({
+      where: schoolId ? { schoolId } : {},
+      select: { id: true, name: true },
+      orderBy: { name: 'asc' },
+    });
+
+    // Subject difficulty ranking
+    const subjectGradeMap: Record<string, { total: number; count: number; name: string }> = {};
+    for (const g of allGrades) {
+      const val = g.overriddenValue ?? g.computedValue;
+      if (!subjectGradeMap[g.subjectId]) {
+        subjectGradeMap[g.subjectId] = { total: 0, count: 0, name: '' };
+      }
+      subjectGradeMap[g.subjectId].total += val;
+      subjectGradeMap[g.subjectId].count += 1;
+    }
+
+    subjects.forEach((s) => {
+      if (subjectGradeMap[s.id]) {
+        subjectGradeMap[s.id].name = s.name;
+      }
+    });
+
+    const subjectDifficulty = Object.entries(subjectGradeMap)
+      .map(([id, data]) => ({
+        id,
+        name: data.name,
+        average: data.count > 0 ? data.total / data.count : 0,
+        gradeCount: data.count,
+      }))
+      .sort((a, b) => b.average - a.average); // Higher average = harder
+
+    // Class average comparison
+    const classGradeMap: Record<string, { total: number; count: number; name: string }> = {};
+    for (const g of allGrades) {
+      const val = g.overriddenValue ?? g.computedValue;
+      if (!classGradeMap[g.classGroupId]) {
+        classGradeMap[g.classGroupId] = { total: 0, count: 0, name: '' };
+      }
+      classGradeMap[g.classGroupId].total += val;
+      classGradeMap[g.classGroupId].count += 1;
+    }
+
+    classes.forEach((c) => {
+      if (classGradeMap[c.id]) {
+        classGradeMap[c.id].name = c.name;
+      }
+    });
+
+    const classAverages = Object.entries(classGradeMap)
+      .map(([id, data]) => ({
+        id,
+        name: data.name,
+        average: data.count > 0 ? data.total / data.count : 0,
+        gradeCount: data.count,
+      }))
+      .sort((a, b) => a.average - b.average);
+
+    // Teacher comparison (admin only)
+    let teacherComparison: Array<{ id: string; name: string; average: number; gradeCount: number }> = [];
+    if (role === 'SUPER_ADMIN' || role === 'SCHOOL_ADMIN' || role === 'VICE_PRINCIPAL') {
+      const teacherIds = await db.classGroupTeacher.findMany({
+        where: schoolId ? { classGroup: { schoolId } } : {},
+        select: { userId: true, user: { select: { id: true, firstName: true, lastName: true } } },
+        distinct: ['userId'],
+      });
+
+      for (const t of teacherIds) {
+        const teacherClasses = await db.classGroupTeacher.findMany({
+          where: { userId: t.userId },
+          select: { classGroupId: true },
+        });
+        const tClassIds = teacherClasses.map((tc) => tc.classGroupId);
+        const tGrades = allGrades.filter((g) => tClassIds.includes(g.classGroupId));
+        if (tGrades.length > 0) {
+          const avg = tGrades.reduce((sum, g) => sum + (g.overriddenValue ?? g.computedValue), 0) / tGrades.length;
+          teacherComparison.push({
+            id: t.user.id,
+            name: `${t.user.firstName} ${t.user.lastName}`,
+            average: Math.round(avg * 100) / 100,
+            gradeCount: tGrades.length,
+          });
+        }
+      }
+      teacherComparison.sort((a, b) => a.average - b.average);
+    }
+
+    return NextResponse.json({
+      totalGrades,
+      averageGrade: gradeAgg._avg.computedValue ? Math.round(gradeAgg._avg.computedValue * 100) / 100 : 0,
+      minGrade: gradeAgg._min.computedValue ?? 0,
+      maxGrade: gradeAgg._max.computedValue ?? 0,
+      finalizedCount,
+      draftCount,
+      distribution,
+      topPerformers,
+      bottomPerformers,
+      riskStudents,
+      classes,
+      subjects,
+      subjectDifficulty,
+      classAverages,
+      teacherComparison,
+    });
+  } catch (error) {
+    console.error('Grade analytics error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

src/app/api/grade-analytics/trends/route.ts

@@ -0,0 +1,215 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const schoolId = searchParams.get('schoolId') ?? session.user?.schoolId ?? undefined;
+    const classGroupId = searchParams.get('classGroupId');
+    const subjectId = searchParams.get('subjectId');
+    const schoolYearId = searchParams.get('schoolYearId');
+    const studentId = searchParams.get('studentId');
+
+    const role = session.user?.role;
+    const isStudent = role === 'STUDENT';
+    const isParent = role === 'PARENT';
+
+    // Build where clause for assessments
+    const assessmentWhere: Record<string, unknown> = {};
+    if (classGroupId) assessmentWhere.classGroupId = classGroupId;
+    if (subjectId) assessmentWhere.subjectId = subjectId;
+
+    if (schoolId) {
+      assessmentWhere.classGroup = { schoolId };
+    }
+
+    // Get assessments with results over time
+    const assessments = await db.assessment.findMany({
+      where: assessmentWhere,
+      select: {
+        id: true,
+        title: true,
+        date: true,
+        type: true,
+        subjectId: true,
+        classGroupId: true,
+        maxScore: true,
+        subject: { select: { id: true, name: true } },
+        classGroup: { select: { id: true, name: true } },
+        assessmentResults: {
+          select: {
+            studentId: true,
+            score: true,
+            masteryLevelValue: true,
+            student: {
+              select: { id: true, firstName: true, lastName: true },
+            },
+          },
+          ...(studentId ? { where: { studentId } } : {}),
+        },
+      },
+      orderBy: { date: 'asc' },
+    });
+
+    // Role-based scoping for student/parent
+    let filteredAssessments = assessments;
+    if (isStudent && session.user?.id) {
+      const student = await db.student.findFirst({
+        where: { userId: session.user.id, deletedAt: null },
+      });
+      if (student) {
+        filteredAssessments = assessments.map((a) => ({
+          ...a,
+          assessmentResults: a.assessmentResults.filter((r) => r.studentId === student.id),
+        }));
+      }
+    }
+
+    if (isParent && session.user?.id) {
+      const parentLinks = await db.parentStudentLink.findMany({
+        where: { parentId: session.user.id },
+        select: { studentId: true },
+      });
+      const childIds = parentLinks.map((l) => l.studentId);
+      filteredAssessments = assessments.map((a) => ({
+        ...a,
+        assessmentResults: a.assessmentResults.filter((r) => childIds.includes(r.studentId)),
+      }));
+    }
+
+    // Build trend data by month
+    const monthMap: Record<string, { date: string; average: number; count: number; grade1: number; grade2: number; grade3: number; grade4: number; grade5: number; grade6: number }> = {};
+
+    filteredAssessments.forEach((a) => {
+      const monthKey = a.date.toISOString().substring(0, 7); // YYYY-MM
+      if (!monthMap[monthKey]) {
+        monthMap[monthKey] = { date: monthKey, average: 0, count: 0, grade1: 0, grade2: 0, grade3: 0, grade4: 0, grade5: 0, grade6: 0 };
+      }
+      a.assessmentResults.forEach((r) => {
+        if (r.score !== null && a.maxScore) {
+          // Convert score to German grade (1-6 scale)
+          const percentage = r.score / a.maxScore;
+          let grade: number;
+          if (percentage >= 0.92) grade = 1;
+          else if (percentage >= 0.81) grade = 2;
+          else if (percentage >= 0.67) grade = 3;
+          else if (percentage >= 0.50) grade = 4;
+          else if (percentage >= 0.30) grade = 5;
+          else grade = 6;
+
+          monthMap[monthKey].count++;
+          monthMap[monthKey].average += grade;
+          if (grade === 1) monthMap[monthKey].grade1++;
+          else if (grade === 2) monthMap[monthKey].grade2++;
+          else if (grade === 3) monthMap[monthKey].grade3++;
+          else if (grade === 4) monthMap[monthKey].grade4++;
+          else if (grade === 5) monthMap[monthKey].grade5++;
+          else monthMap[monthKey].grade6++;
+        }
+      });
+    });
+
+    // Calculate averages
+    Object.values(monthMap).forEach((m) => {
+      m.average = m.count > 0 ? Math.round((m.average / m.count) * 100) / 100 : 0;
+    });
+
+    const trendData = Object.values(monthMap).sort((a, b) => a.date.localeCompare(b.date));
+
+    // Student trajectory data
+    const studentTrajectories: Record<string, { name: string; data: Array<{ date: string; grade: number }> }> = {};
+    filteredAssessments.forEach((a) => {
+      const monthKey = a.date.toISOString().substring(0, 7);
+      a.assessmentResults.forEach((r) => {
+        if (r.score !== null && a.maxScore) {
+          const percentage = r.score / a.maxScore;
+          let grade: number;
+          if (percentage >= 0.92) grade = 1;
+          else if (percentage >= 0.81) grade = 2;
+          else if (percentage >= 0.67) grade = 3;
+          else if (percentage >= 0.50) grade = 4;
+          else if (percentage >= 0.30) grade = 5;
+          else grade = 6;
+
+          if (!studentTrajectories[r.studentId]) {
+            studentTrajectories[r.studentId] = {
+              name: `${r.student.firstName} ${r.student.lastName}`,
+              data: [],
+            };
+          }
+          // Check if we already have data for this month
+          const existing = studentTrajectories[r.studentId].data.find((d) => d.date === monthKey);
+          if (!existing) {
+            studentTrajectories[r.studentId].data.push({ date: monthKey, grade });
+          }
+        }
+      });
+    });
+
+    // Sort trajectory data by date
+    Object.values(studentTrajectories).forEach((t) => {
+      t.data.sort((a, b) => a.date.localeCompare(b.date));
+    });
+
+    // Improvement/regression detection
+    const studentImprovements: Array<{
+      studentId: string;
+      name: string;
+      trend: 'improving' | 'stable' | 'regressing';
+      firstGrade: number;
+      lastGrade: number;
+      change: number;
+    }> = [];
+
+    Object.entries(studentTrajectories).forEach(([id, data]) => {
+      if (data.data.length >= 2) {
+        const firstGrade = data.data[0].grade;
+        const lastGrade = data.data[data.data.length - 1].grade;
+        const change = firstGrade - lastGrade; // Negative = regressing (grade went up), Positive = improving
+        let trend: 'improving' | 'stable' | 'regressing' = 'stable';
+        if (change >= 0.5) trend = 'improving';
+        else if (change <= -0.5) trend = 'regressing';
+
+        studentImprovements.push({
+          studentId: id,
+          name: data.name,
+          trend,
+          firstGrade,
+          lastGrade,
+          change: Math.round(change * 100) / 100,
+        });
+      }
+    });
+
+    // Percentile calculation
+    const allStudentAvgs = Object.entries(studentTrajectories).map(([id, data]) => {
+      const avg = data.data.length > 0 ? data.data.reduce((s, d) => s + d.grade, 0) / data.data.length : 0;
+      return { id, name: data.name, average: avg };
+    }).sort((a, b) => a.average - b.average);
+
+    const percentileData = allStudentAvgs.map((s, idx) => ({
+      ...s,
+      percentile: Math.round((idx / Math.max(allStudentAvgs.length - 1, 1)) * 100),
+    }));
+
+    return NextResponse.json({
+      trendData,
+      studentTrajectories: Object.entries(studentTrajectories).map(([id, data]) => ({
+        id,
+        ...data,
+      })),
+      studentImprovements,
+      percentileData,
+      totalAssessments: filteredAssessments.length,
+    });
+  } catch (error) {
+    console.error('Grade trends error:', error);
+    return NextResponse.json({ error: 'Internal server error' }, { status: 500 });
+  }
+}

src/app/api/inventory/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.inventoryItem, {
+  searchFields: ['name', 'category'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/inventory/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.inventoryItem, {
+  searchFields: ['name', 'category'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/invoices/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.invoice, {
+  searchFields: ['invoiceNo', 'feeType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/invoices/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.invoice, {
+  searchFields: ['invoiceNo', 'feeType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/leaves/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.leave, {
+  searchFields: ['reason', 'leaveType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/leaves/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.leave, {
+  searchFields: ['reason', 'leaveType'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/marks/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.mark, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/marks/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.mark, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/me/route.ts

@@ -0,0 +1,14 @@
+import { NextResponse } from 'next/server'
+
+// Mock current user - in a real app this would come from session/auth
+// We expose a role switcher so the user can experience different panels
+export async function GET() {
+  return NextResponse.json({
+    id: 'usr-admin',
+    name: 'System Administrator',
+    email: 'admin@school.edu.tr',
+    role: 'ADMIN',
+    avatar: null,
+    phone: '+90 555 000 0001',
+  })
+}

src/app/api/notebook-pages/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.notebookPage, {
+  searchFields: ['title', 'content'],
+  defaultOrderBy: { pageNumber: 'asc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/notebook-pages/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.notebookPage, {
+  searchFields: ['title', 'content'],
+  defaultOrderBy: { pageNumber: 'asc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/notices/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.notice, {
+  searchFields: ['title', 'content'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/notices/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.notice, {
+  searchFields: ['title', 'content'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/online-exams/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.onlineExam, {
+  searchFields: ['title'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/online-exams/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.onlineExam, {
+  searchFields: ['title'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/payroll/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.payroll, {
+  searchFields: ['month'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/payroll/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.payroll, {
+  searchFields: ['month'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/queries/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.admissionQuery, {
+  searchFields: ['name', 'phone', 'classApplied'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/queries/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.admissionQuery, {
+  searchFields: ['name', 'phone', 'classApplied'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/questions/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.questionBank, {
+  searchFields: ['question'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/questions/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.questionBank, {
+  searchFields: ['question'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/roles/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.role, {
+  searchFields: ['name', 'description'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/roles/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.role, {
+  searchFields: ['name', 'description'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/routes/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.route, {
+  searchFields: ['name', 'startPoint', 'endPoint'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/routes/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.route, {
+  searchFields: ['name', 'startPoint', 'endPoint'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/routines/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.classRoutine, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/routines/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.classRoutine, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/sections/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.section, {
+  searchFields: ['name'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/sections/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.section, {
+  searchFields: ['name'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/settings/route.ts

@@ -0,0 +1,29 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+
+export async function GET() {
+  try {
+    const settings = await db.setting.findMany()
+    const obj: Record<string, string> = {}
+    for (const s of settings) obj[s.id] = s.value
+    return NextResponse.json(obj)
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}
+
+export async function POST(req: Request) {
+  try {
+    const body = await req.json()
+    for (const [key, value] of Object.entries(body)) {
+      await db.setting.upsert({
+        where: { id: key },
+        update: { value: String(value) },
+        create: { id: key, value: String(value) },
+      })
+    }
+    return NextResponse.json({ success: true })
+  } catch (e: any) {
+    return NextResponse.json({ error: e.message }, { status: 500 })
+  }
+}

src/app/api/staff-attendance/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.staffAttendance, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/staff-attendance/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.staffAttendance, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/staff/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.staff, {
+  searchFields: ['firstName', 'lastName', 'staffId', 'phone', 'email', 'department'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/staff/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.staff, {
+  searchFields: ['firstName', 'lastName', 'staffId', 'phone', 'email', 'department'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/students/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.student, {
+  searchFields: ['firstName', 'lastName', 'admissionNo', 'phone', 'email'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/study-materials/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.studyMaterial, {
+  searchFields: ['title', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/study-materials/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.studyMaterial, {
+  searchFields: ['title', 'type'],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/subjects/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.subject, {
+  searchFields: ['name', 'code'],
+  defaultOrderBy: {"name":"asc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/transactions/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.transaction, {
+  searchFields: ['category', 'description'],
+  defaultOrderBy: {"date":"desc"},
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/transactions/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.transaction, {
+  searchFields: ['category', 'description'],
+  defaultOrderBy: {"date":"desc"},
+})
+
+export const GET = handler.list
+export const POST = handler.create

src/app/api/transport-assignments/[id]/route.ts

@@ -0,0 +1,12 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.transportAssignment, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.get
+export const PUT = handler.update
+export const DELETE = handler.remove

src/app/api/transport-assignments/route.ts

@@ -0,0 +1,11 @@
+import { NextResponse } from 'next/server'
+import { db } from '@/lib/db'
+import { createCrudHandler } from '@/lib/api-helpers'
+
+const handler = createCrudHandler(db.transportAssignment, {
+  searchFields: [],
+  defaultOrderBy: { createdAt: 'desc' },
+})
+
+export const GET = handler.list
+export const POST = handler.create