feat(mcpedia): Phase 1 MVP — monorepo, Core, Web UI, MCP server, Postgres FTS

- bun workspaces + Turborepo monorepo (apps/web, apps/mcp; packages/*, scripts)
- @mcpedia/core single business-logic layer (Document/Content/Search services)
- @mcpedia/db Drizzle schema: documents + weighted tsvector (GIN) for FTS
- @mcpedia/parser frontmatter, @mcpedia/search Postgres FTS (ts_rank+ts_headline)
- Next.js 16 Web UI (home/doc SSG, search dynamic) + react-markdown render
- MCP server (stdio) with 4 tools + in-memory smoke test
- scripts/indexer walks content/ -> upserts into Postgres
- 4 seed docs; README + PHASES status

apps/web/app/page.tsx

@@ -0,0 +1,50 @@
+import Link from "next/link";
+import { listDocuments } from "@mcpedia/core";
+import type { DocumentMeta } from "@mcpedia/core";
+
+const SECTIONS = ["docs", "writeups", "research", "notes"] as const;
+
+export default async function Home() {
+  const all = await listDocuments();
+  const bySection = SECTIONS.map((section) => ({
+    section,
+    docs: all.filter((d) => d.section === section),
+  }));
+
+  return (
+    <div className="space-y-8">
+      <section>
+        <h1 className="text-2xl font-semibold tracking-tight">MCPedia</h1>
+        <p className="mt-2 text-zinc-600 dark:text-zinc-400">
+          A content-first knowledge base. Humans read the Web UI; AI agents use
+          the MCP server. Both share one Core.
+        </p>
+      </section>
+
+      {bySection.map(({ section, docs }) => (
+        <section key={section}>
+          <h2 className="text-lg font-medium capitalize mb-2">{section}</h2>
+          {docs.length === 0 ? (
+            <p className="text-sm text-zinc-500">No documents yet.</p>
+          ) : (
+            <ul className="divide-y divide-zinc-200 dark:divide-zinc-800">
+              {docs.map((d: DocumentMeta) => (
+                <li key={d.slug} className="py-2">
+                  <Link
+                    href={`/${d.section}/${d.slug}`}
+                    className="hover:underline font-medium"
+                  >
+                    {d.title}
+                  </Link>
+                  <div className="text-xs text-zinc-500 mt-0.5">
+                    {d.tags.map((t) => `#${t}`).join(" ")}
+                  </div>
+                </li>
+              ))}
+            </ul>
+          )}
+        </section>
+      ))}
+    </div>
+  );
+}