Namensentschlüsselung, Phase 4 PUT, Bridge-Fix, Debug-Tools

- name-decrypt.js: AES-Entschlüsselung für Datei-/Ordnernamen (CRYPTO_SECRET2)
- path-resolver.js: getPlainName für alle Pfad-Operationen
- upload.js: PUT mit Verschlüsselung, Bridge API v2
- download.js: Bridge 400-Fix (x-api-version, Header)
- debug-name-decrypt.js: Test-Skript für Namensentschlüsselung
- docs: CRYPTO_SECRET/CRYPTO_SECRET2 dokumentiert

Made-with: Cursor

package.json

@@ -6,11 +6,13 @@
   "scripts": {
     "auth-test": "node src/auth-poc.js",
     "token-test": "node src/token-test.js",
+    "debug-names": "node src/debug-name-decrypt.js",
     "start": "node src/server.js"
   },
   "dependencies": {
     "@internxt/lib": "^1.4.1",
     "@internxt/sdk": "^1.13.2",
+    "bip39": "^3.1.0",
     "crypto-js": "^4.1.1",
     "dotenv": "^16.0.0",
     "express": "^4.18.0",