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/uvloop/cbhandles.pxd

@@ -0,0 +1,39 @@
+cdef class Handle:
+    cdef:
+        Loop loop
+        object context
+        bint _cancelled
+
+        str meth_name
+        int cb_type
+        void *callback
+        object arg1, arg2, arg3, arg4
+
+        object __weakref__
+
+        readonly _source_traceback
+
+    cdef inline _set_loop(self, Loop loop)
+    cdef inline _set_context(self, object context)
+
+    cdef inline _run(self)
+    cdef _cancel(self)
+
+    cdef _format_handle(self)
+
+
+cdef class TimerHandle:
+    cdef:
+        object callback
+        tuple args
+        bint _cancelled
+        UVTimer timer
+        Loop loop
+        object context
+        tuple _debug_info
+        object __weakref__
+        object _when
+
+    cdef _run(self)
+    cdef _cancel(self)
+    cdef inline _clear(self)