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>

pipeline/knowledge/brand_identity.md

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+# Brand Identity: honeyDue
+
+## 1. Brand Personality
+honeyDue is the reliable friend who keeps your home running smoothly. We're organized, warm, and empowering — helping homeowners feel in control of their property without the stress.
+
+Core traits:
+- Reliable — your home maintenance safety net
+- Warm — friendly, approachable, like a helpful neighbor
+- Empowering — you've got this, we just make it easier
+- Practical — real solutions, not fluff
+
+## 2. Tone & Voice
+| Attribute | Guidance |
+|-----------|----------|
+| Register  | Casual-professional, like texting a handy friend |
+| Energy    | Calm confidence, not hype |
+| Humor     | Light, relatable homeowner humor |
+| Confidence| Reassuring, not pushy |
+| Length    | Short, punchy sentences |
+
+Write like this: "Your HVAC filter is 3 months overdue. We caught it so you don't have to."
+Not like this: "Our application provides comprehensive home maintenance tracking capabilities."
+
+## 3. CTA Patterns
+- Always start CTAs with action verbs
+- Approved CTAs: "Download free", "Try honeyDue", "Get started", "Take control of your home"
+- Never use: "Buy now", "Limited time", "Act fast"
+
+## 4. Emoji Usage
+- Approved: 🏠 🔧 ✅ 📋 🐝 💛
+- Max per post: 3
+- Never start a caption with an emoji
+
+## 5. Hashtag Strategy
+- Primary (always include): #honeyDue #HomeMaintenance
+- Secondary (rotate): #HomeOwnerTips #FirstTimeHomeowner #PropertyManagement #HomeHacks #DIYHome
+- Never use: #Follow4Follow #Like4Like
+
+## 6. Brand Colors
+- Primary: #0079FF (bright blue)
+- Accent: #FF9400 (orange)
+- Background: warm off-white
+- Cards: clean white with rounded corners
+- Status colors: red (overdue), green (on track), blue (upcoming)