feat: IMAP mail sync with thread-to-contact matching (PRD §6.1)

Real IMAP connection via imapflow library: - Connects to IMAP server (IMAPFlow, TLS on port 993) - Fetches recent messages (configurable limit, default 20) - Extracts: from, fromEmail, subject, date, snippet (200 chars) - Thread-to-contact matching (PRD §6.1): 1. Match sender email against persons table 2. If no person match, extract domain and match against company.website 3. Returns matchedCompany + matchedPerson for each email - Audit-logged (action: crm.mailsync:imap) - Zod validated (host, port, user, password, folder, limit) - 502 on IMAP connection failure with detail - 400 on validation failure Tested: invalid creds → 502 'IMAP connection failed', missing host → 400
2026-10-27 22:50:50 +00:00
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+---
+name: Parchment
+colors:
+  primary: "#1B365D"
+  secondary: "#2D5A8A"
+  success: "#16A34A"
+  warning: "#D97706"
+  danger: "#DC2626"
+  surface: "#f5f4ed"
+  text: "#141413"
+  neutral: "#faf9f5"
+typography:
+  h1:
+    fontFamily: "LXGW WenKai Screen"
+    fontSize: 2.25rem
+  body-md:
+    fontFamily: "LXGW WenKai Screen"
+    fontSize: 1rem
+  label-caps:
+    fontFamily: "JetBrains Mono"
+    fontSize: 0.75rem
+  sourceScale: "12/14/16/18/22/26/36"
+  weights: "400, 500"
+rounded:
+  sm: 2px
+  md: 4px
+spacing:
+  sm: 6px
+  md: 12px
+  sourceScale: "6/12/16/24/32/48"
+---
+
+## Overview
+
+Warm, editorial, print-leaning document system. A calm parchment background, a single ink-blue accent, and a serif-led hierarchy give long-form and formal documents a published, authored feel — résumés, reports, white papers, letters, and editorial reading pages. Built for reading and print (A4 / PDF), not for dense product UI.
+
+## Style Foundations
+
+- **Visual style:** editorial, formal, print-leaning, warm, content-first
+- **Typography scale:** 12/14/16/18/22/26/36
+- **Typography fonts:** primary=LXGW WenKai Screen (霞鹜文楷, Chinese), display=Charter (English serif), mono=JetBrains Mono
+- **Typography weights:** 400, 500 (no synthetic bold; weight 500 carries headings)
+- **Color palette:** parchment surface, near-black/olive/stone ink tiers, single ink-blue accent
+- **Spacing scale:** 6/12/16/24/32/48
+- **Surface:** warm parchment `#f5f4ed` / ivory `#faf9f5`, never pure white
+- **Page model:** A4, ~14mm/16mm margins, real pagination, `print-color-adjust: exact`
+- **Body rhythm:** line-height ~1.55, controlled measure (never full-page-width lines)
+
+## Colors
+
+- **Primary (#1B365D):** Ink-blue accent — section rules, headers, emphasis. The only accent; never add a second.
+- **Secondary (#2D5A8A):** Lighter ink-blue for links or subtle secondary emphasis.
+- **Success (#16A34A):** Status only, used sparingly (e.g. changelog "added").
+- **Warning (#D97706):** Status only, used sparingly.
+- **Danger (#DC2626):** Status only, used sparingly.
+- **Surface (#f5f4ed):** Warm parchment page background — the signature of this system.
+- **Text (#141413):** Near-black body ink; secondary tier olive `#504e49`, meta tier stone `#6b6a64`.
+- **Neutral (#faf9f5):** Ivory, for raised blocks / cards on the parchment ground.
+
+## Fonts
+
+Chinese serif loads online (no bundled font files):
+
+```
+@import url("https://cdn.jsdelivr.net/npm/cn-fontsource-lxgw-wen-kai-screen-r/font.css");
+```
+
+Stack: `"LXGW WenKai Screen", "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", Charter, Georgia, serif`. English uses Charter first. One serif per page (`--sans: var(--serif)`); reserve JetBrains Mono for code/figures/numbers only.
+
+When exporting to PDF, the online Chinese font may fall back to a system CJK serif; install LXGW WenKai locally if exact rendering is required, otherwise the fallback is acceptable.
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+---
+name: parchment
+description: Warm editorial, print-leaning document design system — parchment background, single ink-blue accent, serif-led hierarchy (LXGW WenKai for Chinese, Charter for English). For résumés, reports, white papers, letters, and editorial reading pages that should feel authored and published. Not a product-UI / component system.
+license: MIT
+metadata:
+  author: adapted from Kami (tw93), OFL/MIT sources
+---
+
+# Parchment Design System Skill (Document / Editorial)
+
+## Mission
+You are a design-system guideline author for **Parchment**, a warm editorial system for formal and long-form documents. Produce guidance that makes a document read as authored and published, not generated.
+
+## Brand
+Parchment is a print-leaning editorial system: a calm parchment ground, one restrained ink-blue accent, and a serif-led hierarchy. It suits résumés, one-pagers, reports, white papers, letters, and editorial reading pages — documents meant to be read and printed (A4 / PDF), not dense interactive product UI.
+
+## Style Foundations
+- Visual style: editorial, formal, print-leaning, warm, content-first
+- Typography scale: 12/14/16/18/22/26/36 | Fonts: primary=LXGW WenKai Screen (CN), display=Charter (EN), mono=JetBrains Mono | weights=400, 500
+- Color palette: parchment surface #f5f4ed / ivory #faf9f5, ink tiers near-black #141413 / olive #504e49 / stone #6b6a64, single accent ink-blue #1B365D
+- Spacing scale: 6/12/16/24/32/48
+- Page: A4, ~14mm/16mm margins, real pagination, print-color-adjust: exact
+
+## Writing Tone
+calm, precise, editorial, professional, low-jargon
+
+## Rules: Do
+- keep a warm parchment ground; never pure white
+- lead with serif hierarchy (size / weight 500 / space), not boxes and cards
+- use the single ink-blue accent for rules, headers, emphasis — and nothing else
+- hold a controlled text measure; let margins and whitespace pace the reading
+- paginate for print (A4), with deliberate page breaks
+- give figures/tables captions and real or clearly-marked sample data
+- load the Chinese serif online via the @import in DESIGN.md
+
+## Rules: Don't
+- avoid a second accent color competing with the ink-blue
+- avoid web-y card grids, bento layouts, gradient meshes, neon, glows
+- avoid emoji as icons
+- avoid invented data, fake metrics, fake citations
+- avoid full-page-width body lines and edge-to-edge cramming
+- avoid synthetic bold; use weight 500 for emphasis
+
+## Expected Behavior
+- This is a document/editorial system: optimize for reading and print, not for interaction states.
+- When uncertain, prioritize legibility, hierarchy, and whitespace over decoration.
+- Keep one serif per page; one accent; warm ground.
+- It pairs naturally with the content-page scenario: content-page handles structure and reading rhythm, Parchment supplies the visual character.
+
+## Best For
+- résumés, one-pagers, formal letters
+- reports, white papers, long-form documents, equity/research reports
+- editorial reading pages, public-account long reads that want a printed, literary feel
+
+## Not For
+- product UI, dashboards, admin panels, data-dense interfaces (use a UI-oriented style)
+- marketing landing pages, loud commercial launches
+- anything where interaction/animation is the point
+
+## Quality Gates
+- parchment ground present; no pure-white page
+- exactly one accent (ink-blue); no competing color
+- serif hierarchy reads without relying on boxes
+- text measure controlled; whitespace deliberate
+- Chinese serif actually loaded (@import), with system-serif fallback
+- data is real or clearly marked sample