接入埋点平台umami

- Standardize Hero events to `navigation_click`
- Add `search_result_click` tracking in search dialog
- Track `ai_assistant_query` with query length
- Track 404 errors with referrer
- Add tracking for "Mission Brief" and "Network Status" in footer
- Implement `CopyTracking` for code/text copy events
- Implement `PageFeedback` for helpful/not helpful votes
- Update documentation in `docs/umami_tracking.md`

Co-authored-by: longsizhuo <114939201+longsizhuo@users.noreply.github.com>

- Standardize Hero events to `navigation_click` with Chinese comments
- Add `search_result_click` tracking in search dialog with Chinese comments
- Track `ai_assistant_query` with query length with Chinese comments
- Track 404 errors with referrer with Chinese comments
- Add tracking for "Mission Brief" and "Network Status" in footer with Chinese comments
- Implement `CopyTracking` for code/text copy events with Chinese comments
- Implement `PageFeedback` for helpful/not helpful votes with Chinese comments
- Update documentation in `docs/umami_tracking.md`

Co-authored-by: longsizhuo <114939201+longsizhuo@users.noreply.github.com>

- Standardize Hero events to `navigation_click`
- Add `search_result_click` tracking in search dialog
- Track `ai_assistant_query` without parameters
- Track 404 errors with referrer
- Add tracking for "Mission Brief" and "Network Status" in footer
- Implement `CopyTracking` for `content_copy` events
- Implement `PageFeedback` with updated styling
- Update documentation in `docs/umami_tracking.md`

Co-authored-by: longsizhuo <114939201+longsizhuo@users.noreply.github.com>

…ts-4727781891997572074

Enhance Umami tracking implementation

fix(ai): change default provider to intern and fix error handling

fix: 不将全量数据在一开始就给Bot