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>

prisma/schema.prisma

@@ -0,0 +1,92 @@
+generator client {
+  provider = "prisma-client"
+  output   = "../lib/generated/prisma"
+}
+
+datasource db {
+  provider = "sqlite"
+}
+
+model User {
+  id        String   @id @default(cuid())
+  email     String   @unique
+  password  String
+  name      String?
+  createdAt DateTime @default(now())
+}
+
+model Campaign {
+  id             String          @id @default(cuid())
+  name           String
+  status         String          @default("draft") // draft, running, review, approved, published
+  prompt         String?
+  platforms      String // JSON array: ["instagram","tiktok","nextdoor"]
+  config         String? // JSON: full campaign config from form
+  outputPath     String?
+  createdAt      DateTime        @default(now())
+  updatedAt      DateTime        @updatedAt
+  agentRuns      AgentRun[]
+  assets         Asset[]
+  claudeSessions ClaudeSession[]
+}
+
+model AgentRun {
+  id            String    @id @default(cuid())
+  campaignId    String
+  campaign      Campaign  @relation(fields: [campaignId], references: [id])
+  agentName     String
+  status        String    @default("pending") // pending, running, completed, failed
+  startedAt     DateTime?
+  completedAt   DateTime?
+  durationMs    Int?
+  outputSummary String?
+  outputPath    String?
+  tokenUsage    Int?
+  error         String?
+  assets        Asset[]
+  createdAt     DateTime  @default(now())
+}
+
+model Asset {
+  id            String    @id @default(cuid())
+  campaignId    String
+  campaign      Campaign  @relation(fields: [campaignId], references: [id])
+  agentRunId    String?
+  agentRun      AgentRun? @relation(fields: [agentRunId], references: [id])
+  type          String // image, video, copy, research, script
+  platform      String? // instagram, tiktok, nextdoor, all
+  format        String? // png, mp4, json, txt, html, md
+  filePath      String
+  fileName      String
+  dimensions    String? // 1080x1080, 1080x1920, etc.
+  metadata      String? // JSON: caption, hashtags, hook text, scene plan
+  status        String    @default("draft") // draft, approved, rejected, published
+  publishedTo   String? // JSON array of platforms published to
+  postizPostId  String?
+  postizMediaId String?
+  createdAt     DateTime  @default(now())
+}
+
+model ClaudeSession {
+  id         String   @id @default(cuid())
+  campaignId String
+  campaign   Campaign @relation(fields: [campaignId], references: [id])
+  sessionId  String?
+  messages   String? // JSON array of conversation history
+  createdAt  DateTime @default(now())
+  updatedAt  DateTime @updatedAt
+}
+
+model TrendReport {
+  id        String   @id @default(cuid())
+  name      String
+  filePath  String
+  summary   String?
+  createdAt DateTime @default(now())
+}
+
+model Setting {
+  key       String   @id
+  value     String
+  updatedAt DateTime @updatedAt
+}