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/starlette/exceptions.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+import http
+from collections.abc import Mapping
+
+
+class HTTPException(Exception):
+    def __init__(self, status_code: int, detail: str | None = None, headers: Mapping[str, str] | None = None) -> None:
+        if detail is None:
+            detail = http.HTTPStatus(status_code).phrase
+        self.status_code = status_code
+        self.detail = detail
+        self.headers = headers
+
+    def __str__(self) -> str:
+        return f"{self.status_code}: {self.detail}"
+
+    def __repr__(self) -> str:
+        class_name = self.__class__.__name__
+        return f"{class_name}(status_code={self.status_code!r}, detail={self.detail!r})"
+
+
+class WebSocketException(Exception):
+    def __init__(self, code: int, reason: str | None = None) -> None:
+        self.code = code
+        self.reason = reason or ""
+
+    def __str__(self) -> str:
+        return f"{self.code}: {self.reason}"
+
+    def __repr__(self) -> str:
+        class_name = self.__class__.__name__
+        return f"{class_name}(code={self.code!r}, reason={self.reason!r})"