Task-based model selection, projects, and a more complete web preview

New features

• Added an "Autopilot (experimental)" switch in model settings to select available cloud models for each task. It is off by default. Manual selection and the server-recommended option remain available, and turning the experiment off restores your previous choice. Requires the latest device update.
• Added projects to organize chats, set project instructions, and view project memories. Chats in a project use its instructions and memories. Requires the latest device update.
• Added "Self-check & report" in Settings to check user settings and network connectivity, follow progress, review problems and adjustment suggestions, and generate a report. Requires the latest device update.
• Web preview now includes browsing history, bookmarks, and site permission management. History supports search and deleting multiple entries. You can also ask AI to query your browsing history; this requires the latest device update.

Improvements

• The chat list organizes project chats and independent chats separately. Search can find chats that have not yet loaded into the list. Requires the latest device update.
• Web preview remembers the width you set, with smoother dragging and window resizing. AI reuses suitable tabs to reduce the buildup of open pages.
• Web pages show loading progress and offer error details and retries. Browser dialogs and downloads have more complete handling.
• In Autopilot, continuing or retrying a task preserves its objective and model choice, including after a device restart. Model availability is checked again before use. Requires the latest device update.
• Updated the ChatGPT subscription model list and added support for the larger context windows provided by the model catalog. Requires the latest device update.

Fixes

• Fixed the device proxy switch reporting that the proxy was enabled when it was not active. Requires the latest device update.
• Fixed stale project information after changes and duplicate context-compaction completion notices. The compaction notice fix requires the latest device update.