chore(deps): upgrade google sheets client libraries

@googleapis/sheets ^5.0.5 -> ^14.0.0 and google-auth-library ^9.4.2 ->
^10.5.0. No source changes: the sheets_v4 shapes used in sheets.utils.ts
and the OAuth2Client/Credentials usage in sheets.service.ts are unchanged.

google-auth-library lands on 10 rather than the latest 11 on purpose.
@googleapis/sheets@14 reaches google-auth-library through
googleapis-common@8, which pins exactly 10.5.0; asking for ^11 installs
both copies and OAuth2Client stops being assignable to itself
("separate declarations of a private property 'redirectUri'").
googleapis-common@9 moves to ^11, so this can go to 11 once a
@googleapis/sheets release depends on it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NWs1vf42msmoJ21ABvQMpm

apps/server/package.json

@@ -5,7 +5,7 @@
   "version": "4.12.0",
   "exports": "./src/index.js",
   "dependencies": {
-    "@googleapis/sheets": "^5.0.5",
+    "@googleapis/sheets": "^14.0.0",
     "@modelcontextprotocol/sdk": "^1.15.0",
     "cookie": "1.0.2",
     "cookie-parser": "1.4.7",
@@ -15,7 +15,7 @@
     "express-static-gzip": "3.0.1",
     "express-validator": "7.3.2",
     "fast-equals": "^6.0.0",
-    "google-auth-library": "^9.4.2",
+    "google-auth-library": "^10.5.0",
     "lowdb": "^7.0.1",
     "multer": "2.2.0",
     "ontime-utils": "workspace:*",