fix: publish compiled .js + .d.ts instead of raw .ts sources

- Add tsc --build pipeline for json-cas, json-cas-fs, json-cas-workflow
- Update package.json exports to point to dist/ (types + import)
- Fix Store type error: use BootstrapCapableStore for stores with bootstrap
- Export BootstrapCapableStore type from json-cas
- Fix meta-schema: nodeSchema now uses real JSON Schema (draft 2020-12)
- Exclude test files from tsc compilation

Breaking: bootstrap hash changes due to meta-schema payload update.

小橘 🍊（NEKO Team）

package.json

@@ -12,6 +12,7 @@
     "typescript": "^5.8.0"
   },
   "scripts": {
+    "build": "tsc --build packages/json-cas packages/json-cas-fs packages/json-cas-workflow",
     "test": "bun test",
     "check": "biome check .",
     "format": "biome format --write ."