Implement full Couch Potato movie & TV tracking app

Add all 10 milestones: Drizzle ORM + SQLite database with WAL mode,
Better Auth email/password authentication, TMDB API integration for
search and metadata import, TV season/episode caching, user tracking
(watchlist/status/watches/ratings with auto-transitions), discovery
feeds (continue watching, library, recommendations), US streaming
availability via TMDB providers, background job scheduler with
instrumentation hook, and dark cinema-themed frontend with DM Serif
Display + DM Sans typography and amber accent design system.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/api/admin/jobs/[name]/route.ts

@@ -0,0 +1,25 @@
+import type { NextRequest } from "next/server";
+import { NextResponse } from "next/server";
+import { badRequest } from "@/lib/api/errors";
+import { registerJobs } from "@/lib/jobs/registry";
+import { scheduler } from "@/lib/jobs/scheduler";
+
+// Ensure jobs are registered for manual triggering
+registerJobs();
+
+export async function POST(
+  _req: NextRequest,
+  { params }: { params: Promise<{ name: string }> },
+) {
+  const { name } = await params;
+  const jobNames = scheduler.getJobNames();
+
+  if (!jobNames.includes(name)) {
+    return badRequest(
+      `Unknown job: ${name}. Available: ${jobNames.join(", ")}`,
+    );
+  }
+
+  await scheduler.runNow(name);
+  return NextResponse.json({ ok: true, job: name });
+}