fix: rewrite Dokploy client with correct API format (tRPC + x-api-key)

- Verified endpoints from @dokploy/mcp source code:
  - Auth: x-api-key header (not Authorization: Bearer)
  - Base URL: {url}/api
  - application.create → needs environmentId (not projectId)
  - Git provider saved separately: saveGiteaProvider / saveGithubProvider / saveGitProvider
  - Environment vars saved via saveEnvironment
  - Deploy is a separate call after create
  - Domain attach via domain.create
- Provisioning flow now multi-step:
  1. application.create
  2. saveGiteaProvider or saveGithubProvider (based on gitRepo URL)
  3. saveEnvironment (env vars)
  4. application.deploy
  5. domain.create (optional, non-fatal)
- Removed database provisioning (Dokploy apps use their own DB via env vars)
- Teardown simplified: deleteDomain → deleteApplication
- Updated instances route + cleanup route to match new API

src/app/api/aos/instances/[id]/route.ts

@@ -184,8 +184,7 @@ export async function DELETE(_req: Request, { params }: { params: Promise<{ id:
       try {
         const result = await dokploy.teardownInstance({
           dokployAppId: instance.dokployAppId ?? undefined,
-          dokployDbId: instance.dokployDbId ?? undefined,
-          dnsDomainId: meta.dokployDomainId,
+          dokployDomainId: meta.dokployDomainId,
         })
         steps.push(...result.steps)
         await db.instanceEvent.create({

src/app/api/aos/instances/cleanup/route.ts

@@ -88,8 +88,7 @@ export async function POST(req: Request) {
           try {
             const r = await dokploy.teardownInstance({
               dokployAppId: inst.dokployAppId ?? undefined,
-              dokployDbId: inst.dokployDbId ?? undefined,
-              dnsDomainId: meta.dokployDomainId,
+              dokployDomainId: meta.dokployDomainId,
             })
             steps.push(...r.steps)
           } catch (e) {

src/app/api/aos/instances/route.ts

@@ -158,7 +158,7 @@ export async function POST(req: Request) {
         gitRepo,
         gitBranch,
         envVars: instanceEnv,
-        databaseName: `${product}_${subdomain}`.replace(/-/g, '_').slice(0, 40),
+        gitProvider: gitRepo.includes('github.com') ? 'github' : 'gitea',
         cpuLimit: plan === 'enterprise' ? '2' : plan === 'pro' ? '1' : '0.5',
         memoryLimit: plan === 'enterprise' ? '2048m' : plan === 'pro' ? '1024m' : '512m',
       }
@@ -183,8 +183,7 @@ export async function POST(req: Request) {
           result: 'ok',
           details: JSON.stringify({
             appId: result.app.applicationId,
-            dbId: result.database?.databaseId,
-            domainId: result.domain.domainId,
+            domainId: result.domain?.domainId,
             url: result.url,
           }),
         },
@@ -227,15 +226,11 @@ export async function POST(req: Request) {
         data: {
           status: isDemo ? 'demo_active' : 'active',
           dokployAppId: result.app.applicationId,
-          dokployDbId: result.database?.databaseId ?? null,
-          dokployDbName: result.database?.database ?? null,
-          dokployDbUser: result.database?.username ?? null,
-          dokployDbPassword: result.database?.password ?? null,
           dnsRecordId,
           metadata: JSON.stringify({
             gitRepo,
             gitBranch,
-            dokployDomainId: result.domain.domainId,
+            dokployDomainId: result.domain?.domainId ?? null,
             url: result.url,
             provisionedAt: now.toISOString(),
           }),