When pinning a shape again after unpinning, leftover state from the
previous session was causing the shape to jump/resize unexpectedly.
Changes:
- Add clearPinState() helper to reset all refs and cancel animations
- Add cleanShapeMeta() helper to remove all pin-related meta properties
- Clear all state immediately when pinning starts (before setting new state)
- Clear refs immediately when unpinning (not in setTimeout)
- Remove pinnedAtZoom from meta cleanup (legacy from CSS scaling)
- Don't call updatePinnedPosition() on pin start - shape is already
at correct position, only need to listen for future camera changes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Jeff Emmett
678df2bbca