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/httptools/parser/python.pxd

@@ -0,0 +1,6 @@
+cimport cpython
+
+
+cdef extern from "Python.h":
+    cpython.Py_buffer* PyMemoryView_GET_BUFFER(object)
+    bint PyMemoryView_Check(object)