This commit introduces a major refactoring of the synchronization architecture and adds several new user-facing navigation features to improve usability, performance, and accuracy.
### Synchronization Architecture Rearchitect
- **Pre-computed Timestamps:** Implemented a "baking" process (`precomputeRadarVideoSync`) that calculates a `videoSyncedTime` for each radar frame upon data load or offset change. This eliminates redundant on-the-fly calculations during playback.
- **Simplified Sync Loop:** The main `videoFrameCallback` now performs a simple binary search against the pre-computed timestamps, making the core loop faster and more reliable.
- **Centralized Offset Logic:** Manual offset changes are now handled by a single function (`forceResyncWithOffset`) that re-bakes the timing data, ensuring UI consistency and removing duplicated code.
- **Accurate Drift Calculation:** Fixed the debug overlay's drift calculation to use the new `videoSyncedTime`, providing accurate diagnostics with both automatic and manual offsets.
### New Navigation & UI Features
- **Scroll-to-Seek:**
- Implemented scroll-to-seek on both the main radar plot and the video player.
- Features dynamic acceleration for fast scrubbing and single-frame precision for slow scrolling.
- Uses a stateful approach and debouncing to provide a smooth, responsive UI while preventing video stutter.
- All overlays now update instantly during scroll gestures for a seamless experience.
- **Frame-by-Frame Seeking:**
- Added keyboard shortcuts (`ArrowUp`/`ArrowDown`) for single-frame video seeking.
- Fixed a bug where radar seeking (`ArrowLeft`/`ArrowRight`) did not update the UI when paused.
- **God Mode (Zoom) Integration:**
- Disabled timeline seeking via scroll wheel when zoom mode is active to prevent conflicting user actions.
### Bug Fixes
- Fixed a "sticky acceleration" bug where scroll speed was not reset after a seeking gesture.
- Corrected an inverted scroll direction on the timeline slider.
- Fixed a rendering error in the advanced debug overlay caused by a stale variable reference.
- Ensured persistent overlays are correctly hidden when debug overlays are active.
RUSHIL AMBARISH KADU
02601fd52c