feat: complete marketing command center with pipeline, UI, and asset generation

- Dashboard with campaign management, asset gallery, and publishing queue
- 7-agent pipeline: trend scout, research, scripts, ad creative, video, copy, distribution
- Campaign form with screenshot upload, goal picker, platform selection
- Campaign detail view with Details/Pipeline/Assets/Chat tabs
- Two-set image generation: Gemini AI (NanoBanana MCP) + Canvas Design posters
- Remotion video rendering with phone.png frame and real screenshot alignment
- honeyDue branding: blue #0079FF, orange #FF9400, Inter font, warm off-white
- Asset cards with source badges (Gemini/Canvas/Remotion/Playwright)
- Markdown/JSON render endpoint for viewing pipeline outputs as HTML
- Settings page with Tavily, Gemini, Postiz, Nextdoor integration management
- Claude Chat for campaign feedback loop with streaming SSE
- Postiz publishing modal with scheduling
- Auth with NextAuth credentials + JWT sessions
- SQLite via Prisma with better-sqlite3 adapter

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -39,3 +39,27 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+
+# prisma generated client & local db
+/lib/generated/prisma
+prisma/data/
+data/
+
+# pipeline build artifacts
+pipeline/package-lock.json
+pipeline/remotion-ad/package-lock.json
+pipeline/node_modules/
+pipeline/remotion-ad/node_modules/
+pipeline/outputs/*
+!pipeline/outputs/.gitkeep
+pipeline/.next/
+pipeline/remotion-ad/public/tasks_overdue.png
+pipeline/remotion-ad/public/phone.png
+pipeline/remotion-ad/public/icon.png
+
+# claude settings (local/personal)
+.claude/settings.local.json
+
+# uploaded screenshots (user content)
+pipeline/assets/screenshots/*.png
+!pipeline/assets/screenshots/.gitkeep