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

package.json

@@ -0,0 +1,24 @@
+{
+  "name": "mcpedia",
+  "version": "0.1.0",
+  "private": true,
+  "packageManager": "bun@1.3.14",
+  "workspaces": [
+    "apps/*",
+    "packages/*",
+    "scripts"
+  ],
+  "scripts": {
+    "dev": "turbo run dev",
+    "build": "turbo run build",
+    "lint": "turbo run lint",
+    "typecheck": "turbo run typecheck",
+    "index": "bun run scripts/indexer.ts",
+    "mcp": "bun --cwd apps/mcp run start"
+  },
+  "devDependencies": {
+    "turbo": "^2.5.0",
+    "typescript": "^5.6.0",
+    "prettier": "^3.3.0"
+  }
+}