feat: scripts/sync-libs.mjs + docs/LIBS.md

Generates a compact lib catalog from the live crema-manifest, sorted into
"wired in this project" and "available to add" tables. The development LLM
(Claude Code, Cursor, etc.) reads this when answering "is there a lib for
X" — saves it from re-deriving the answer or making one up.

The script reads the project's tsconfig.json paths (for wired libs) and
app/app.css @import lines (for the active theme), clones the manifest, and
emits docs/LIBS.md with stable formatting.

CLAUDE.md updated to point at LIBS.md (was pointing directly at the live
manifest URL — slower for an LLM that wants a quick scan).

Run after `crema add <name>` or whenever you want a refresh:

  npm run sync-libs

Auto-detects:
- Wired libs from tsconfig.json @crema/* paths
- Active theme from app/app.css `@import "../../lib-theme-*/theme.css"` lines

Output is intentionally compact — terse one-line descriptions, alpha sort,
no front-matter. ~9KB for the current 5-wired / 50-available split.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -6,7 +6,8 @@
     "build": "react-router build",
     "dev": "react-router dev",
     "start": "react-router-serve ./build/server/index.js",
-    "typecheck": "react-router typegen && tsc"
+    "typecheck": "react-router typegen && tsc",
+    "sync-libs": "node scripts/sync-libs.mjs"
   },
   "dependencies": {
     "@base-ui/react": "^1.4.0",