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

skills/design/design-templates/audio-jingle/SKILL.md

@@ -0,0 +1,72 @@
+---
+name: audio-jingle
+description: Single-track / single-episode music-player mockup template — glassmorphic iOS-Music style player card with ambient album-art wash, for showcasing one song, one podcast episode, or one audio jingle as a shareable interactive surface.
+visibility: public
+mode: template
+carrier: web-page
+scenario: audio-showcase
+pattern_source: music-player.html
+source_priority: skill-first
+triggers:
+  - "做个音乐播放器 mockup"
+  - "单曲展示页"
+  - "播客单期封面"
+  - "iOS Music 风播放器卡"
+  - "玻璃感播放器"
+---
+
+# Audio Jingle Template
+
+Use this template when the artifact is a small, focused player UI around a single piece of audio — a song drop, a podcast episode, a brand jingle demo, an artist spotlight.
+
+## Use When
+
+- The user wants to show off **one** track / episode / jingle (not a full library).
+- The output is a sharable mini-player page or an in-line embed mockup (artist landing, EPK, "listen now" card).
+- The desired look is calm, premium, Apple-Music-leaning glassmorphism over an ambient album-art wash.
+- The user is pitching a music release, a podcast hook, or a sonic-branding deliverable.
+
+## Avoid When
+
+- The content is a long playlist, browsable library, or full music-app product (this template's queue strip is decorative, not browsable).
+- The audio needs lyrics scrolling, waveform editing, or audiogram-style captioning.
+- The user actually wants a video player, social card, or marketing landing.
+- The release is loud / cyberpunk / underground — the template's mood is restrained and premium; replace, don't fight it.
+
+## Required Reading
+
+Read this `SKILL.md` first. Do **not** read `music-player.html` by default.
+
+Read `music-player.html` only when you need concrete layout rhythm of the player card, scrubber/control geometry, or the active-track equalizer animation. Extract patterns; do not copy DOM, CSS classes, color tokens, or the placeholder track metadata wholesale.
+
+## Design Strategy
+
+Decide the surface role first:
+
+- single-track release card (artist + title + art + play)
+- podcast episode hero (episode title + show + duration)
+- jingle showcase (brand mark + track + small "use cases" caption)
+- artist spotlight (avatar + bio sliver + featured track)
+
+Then pin the dominant color to the album/episode artwork — let the ambient wash do the color-bearing.
+
+## Layout Bias
+
+Prefer:
+
+- one square hero artwork, perceptibly large
+- the player card centered with breathing room, not stretched edge-to-edge
+- ambient blurred backdrop sampled from the artwork (not arbitrary gradient)
+- monospaced or tabular numerals for timecodes
+- a short queue strip (≤ 6 items) only if it adds context, otherwise omit
+
+Avoid:
+
+- decorative "vinyl spin" or 3D speaker stickers (slop)
+- neon EQ bars or rave gradients
+- crowding the player card with social / download / share / tip / lyrics all at once
+- text overlayed directly on artwork — keep type on the glass card
+
+## Platform / Size
+
+This is a **web-page mockup**, not a fixed-image export. Default to a mobile-first centered column (~ 390–420px content width) on a full-bleed ambient backdrop. If the user asks for an embeddable card, crop to that aspect; if they ask for a poster, switch to a social-card template instead.