Fix project isolation: Make loadChatHistory respect active project sessions

- Modified loadChatHistory() to check for active project before fetching all sessions
- When active project exists, use project.sessions instead of fetching from API
- Added detailed console logging to debug session filtering
- This prevents ALL sessions from appearing in every project's sidebar

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.venv/lib/python3.11/site-packages/cryptography/hazmat/primitives/constant_time.py

@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import hmac
+
+
+def bytes_eq(a: bytes, b: bytes) -> bool:
+    if not isinstance(a, bytes) or not isinstance(b, bytes):
+        raise TypeError("a and b must be bytes.")
+
+    return hmac.compare_digest(a, b)