feat(phase3): phase 7 - integration & polish

Fix all build/type/lint errors, write 46 new tests (222 total across
20 files), regenerate Prisma client, update seed with user preferences.
Fix SvelteSet usage, add {#each} keys, clean unused imports.

plans/phase-3-advanced-features/CONTEXT.md

@@ -1,7 +1,7 @@
 # Feature Context: Phase 3 — Advanced Features
 
 ## Current State
-Phase 2 is complete and merged. 176 tests, full build passes. Phase 3 in progress. Phase 1 (Import/Export), Phase 2 (Sparklines), and Phase 3 (User Theme Overrides) are complete.
+Phase 7 (Integration & Polish) is complete. 222 tests across 20 test files, full build passes, `npm run check` 0 errors, `npm run lint` 0 errors. All phases 1-7 are done.
 
 ### Phase 1 (Import/Export) Summary
 exportService, importService, admin API endpoints, ImportExportPanel UI, Zod validation schema, i18n EN/RU translations.
@@ -23,6 +23,13 @@ exportService, importService, admin API endpoints, ImportExportPanel UI, Zod val
 - Header user menu includes "Settings" link
 - i18n keys: `settings.title`, `settings.theme`, `settings.primary_color`, `settings.hue`, `settings.saturation`, `settings.background`, `settings.language`, `settings.save`, `settings.saving`, `settings.saved` (EN/RU)
 
+### Phase 7 (Integration & Polish) Summary
+- Prisma client regenerated with user preference fields
+- Fixed lint errors: SvelteSet for reactive Set in DiscoveryPanel, `{#each}` keys in DiscoveryPanel/SparklineChart, unused vars in ThemeCustomizer/AppWidget
+- 46 new tests: exportService (4), importService (9), discoveryService (10), preferences API (11), quick-add API (8), broadcastSync (4)
+- Seed script updated: user preferences on admin/regular user, quick-add style Wiki.js app
+- Final state: 222 tests, 0 build errors, 0 type errors, 0 lint errors
+
 ## Cross-Phase Dependencies
 - Phases 1-3 are independent (import/export, sparklines, user themes)
 - Phase 4 (PWA) is independent

plans/phase-3-advanced-features/PLAN.md

@@ -25,7 +25,7 @@ Add import/export, ping history sparklines, user theme overrides, PWA support, D
 - [ ] Phase 4: PWA Support [frontend] → [subplan](./phase-4-pwa.md)
 - [ ] Phase 5: Auto-Discovery Docker/Traefik [backend] → [subplan](./phase-5-autodiscovery.md)
 - [ ] Phase 6: Bookmarklet & Multi-Tab Sync [fullstack] → [subplan](./phase-6-bookmarklet-sync.md)
-- [ ] Phase 7: Integration & Polish [fullstack] → [subplan](./phase-7-integration.md)
+- [x] Phase 7: Integration & Polish [fullstack] → [subplan](./phase-7-integration.md)
 
 ## Phase Progress Log
 
@@ -37,7 +37,7 @@ Add import/export, ping history sparklines, user theme overrides, PWA support, D
 | Phase 4: PWA | frontend | ⬜ Not Started | ⬜ | ⬜ | ⬜ |
 | Phase 5: Auto-Discovery | backend | ⬜ Not Started | ⬜ | ⬜ | ⬜ |
 | Phase 6: Bookmarklet/Sync | fullstack | ⬜ Not Started | ⬜ | ⬜ | ⬜ |
-| Phase 7: Integration | fullstack | ⬜ Not Started | ⬜ | ⬜ | ⬜ |
+| Phase 7: Integration | fullstack | ✅ Complete | ✅ | ✅ | ⬜ |
 
 ## Final Review
 - [ ] Comprehensive code review

plans/phase-3-advanced-features/phase-7-integration.md

@@ -1,21 +1,29 @@
 # Phase 7: Integration & Polish
 
-**Status:** ⬜ Not Started
+**Status:** ✅ Complete
 **Parent plan:** [PLAN.md](./PLAN.md)
 **Domain:** fullstack
 
 ## Tasks
-- [ ] Task 1: Fix all TypeScript/build errors
-- [ ] Task 2: Verify `npm run build` succeeds
-- [ ] Task 3: Verify `npm run check` passes
-- [ ] Task 4: Verify `npm run lint` passes
-- [ ] Task 5: Write tests for export/import services
-- [ ] Task 6: Write tests for discovery service
-- [ ] Task 7: Write tests for user preferences API
-- [ ] Task 8: Write tests for quick-add API
-- [ ] Task 9: Update seed script with sample data
-- [ ] Task 10: Verify all existing tests pass
-- [ ] Task 11: Run Prisma migrations
+- [x] Task 1: Fix all TypeScript/build errors
+- [x] Task 2: Verify `npm run build` succeeds
+- [x] Task 3: Verify `npm run check` passes (0 errors, warnings only)
+- [x] Task 4: Verify `npm run lint` passes (0 errors)
+- [x] Task 5: Write tests for export/import services
+- [x] Task 6: Write tests for discovery service (mocked Docker/Traefik)
+- [x] Task 7: Write tests for user preferences API
+- [x] Task 8: Write tests for quick-add API
+- [x] Task 9: Write tests for broadcastSync utility
+- [x] Task 10: Update seed script with sample data (user preferences, quick-add style app)
+- [x] Task 11: Run Prisma generate (migrations already applied)
+- [x] Task 12: Verify all 222 tests pass across 20 test files
+
+## Changes Made
+
+- `prisma generate` — regenerated client with user preference fields
+- Fixed lint: SvelteSet for reactive Set in DiscoveryPanel, `{#each}` keys, unused vars
+- New tests: exportService (4), importService (9), discoveryService (10), preferences API (11), quick-add API (8), broadcastSync (4) = 46 new tests
+- Updated seed.ts: user preferences on admin/regular user, quick-add style Wiki.js app
 
 ## Handoff
 <!-- Final phase -->