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/seed.ts

@@ -0,0 +1,32 @@
+import bcrypt from "bcryptjs";
+import { PrismaClient } from "../lib/generated/prisma/client";
+import { PrismaBetterSqlite3 } from "@prisma/adapter-better-sqlite3";
+
+const adapter = new PrismaBetterSqlite3({
+  url: process.env.DATABASE_URL || "file:./data/marketing.db",
+});
+const prisma = new PrismaClient({ adapter });
+
+async function main() {
+  const email = process.env.ADMIN_EMAIL || "admin@localhost";
+  const password = process.env.ADMIN_PASSWORD || "admin123";
+
+  await prisma.user.upsert({
+    where: { email },
+    update: {},
+    create: {
+      email,
+      password: await bcrypt.hash(password, 12),
+      name: "Admin",
+    },
+  });
+
+  console.log(`Admin user created: ${email}`);
+}
+
+main()
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(() => prisma.$disconnect());