chore(01-08): run full test suite — 44 passed, 1 skipped, 0 failed

- dotnet build with -warnaserror: 0 warnings, 0 errors
- 44 unit/integration tests pass
- 1 interactive MSAL test skipped (expected)
- Build clean on SharepointToolbox.slnx

.planning/config.json

@@ -8,6 +8,7 @@
     "research": true,
     "plan_check": true,
     "verifier": true,
-    "nyquist_validation": true
+    "nyquist_validation": true,
+    "_auto_chain_active": false
   }
 }