feat: worst-scan fansub web — initial release

Posts engine (SQLite + auto-publisher via poller), public feed with
clickable tags, reader, admin panel, submit/search/queue tools.
BFF proxy to pipeline API. Clean dark design. Docker-ready.

src/app/api/posts/[id]/publish/route.ts

@@ -0,0 +1,14 @@
+import { NextRequest } from "next/server"
+import { publishPost } from "@/lib/db"
+
+export async function POST(
+  req: NextRequest,
+  { params }: { params: Promise<{ id: string }> },
+) {
+  const { id } = await params
+  const body = await req.json().catch(() => ({}))
+  const publish = body.publish !== false
+  const post = publishPost(Number(id), publish)
+  if (!post) return Response.json({ error: "Post not found" }, { status: 404 })
+  return Response.json({ data: post })
+}