feat(cli): prepare and validate workspace documents offline

Reuse the runtime catalog and workspace parsers in a standalone helper paired with tht. Add document templates, safe diagnostics, local Evidence checks, native bundle builds, shared CLI fixtures and IT/EN preparation guides. Record the approved document-first specification and ticket breakdown. Refs #43.

backend/package.json

@@ -3,6 +3,7 @@
   "private": true,
   "type": "module",
   "scripts": {
+    "build:workspace-tools": "node scripts/build-workspace-tools.mjs",
     "dev": "tsx watch src/server.ts",
     "prebuild": "node scripts/clean-dist.mjs",
     "build": "tsc -p tsconfig.json",
@@ -31,6 +32,7 @@
     "@testcontainers/postgresql": "^12.1.0",
     "@types/node": "24.13.3",
     "@types/validator": "13.15.10",
+    "bun": "1.4.2",
     "tsx": "^4.19.0",
     "typescript": "^5.6.0",
     "vitest": "^2.1.0"