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/mcp/shared/experimental/tasks/polling.py

@@ -0,0 +1,45 @@
+"""
+Shared polling utilities for task operations.
+
+This module provides generic polling logic that works for both client→server
+and server→client task polling.
+
+WARNING: These APIs are experimental and may change without notice.
+"""
+
+from collections.abc import AsyncIterator, Awaitable, Callable
+
+import anyio
+
+from mcp.shared.experimental.tasks.helpers import is_terminal
+from mcp.types import GetTaskResult
+
+
+async def poll_until_terminal(
+    get_task: Callable[[str], Awaitable[GetTaskResult]],
+    task_id: str,
+    default_interval_ms: int = 500,
+) -> AsyncIterator[GetTaskResult]:
+    """
+    Poll a task until it reaches terminal status.
+
+    This is a generic utility that works for both client→server and server→client
+    polling. The caller provides the get_task function appropriate for their direction.
+
+    Args:
+        get_task: Async function that takes task_id and returns GetTaskResult
+        task_id: The task to poll
+        default_interval_ms: Fallback poll interval if server doesn't specify
+
+    Yields:
+        GetTaskResult for each poll
+    """
+    while True:
+        status = await get_task(task_id)
+        yield status
+
+        if is_terminal(status.status):
+            break
+
+        interval_ms = status.pollInterval if status.pollInterval is not None else default_interval_ms
+        await anyio.sleep(interval_ms / 1000)