Knee Cola 248b9cf3d0 perf: implement canvas pooling to reduce memory allocations ...

Replace per-iteration canvas creation with a reusable canvas pool:

- Pre-allocate 6 canvas objects (max needed for split=5 strategy)
- Reuse canvases across all split strategies by resizing
- Set unused canvases to 0×0 to free bitmap memory
- Reduces allocations from ~36 to 6 objects (83% reduction)

Benefits:
- Lower memory footprint
- Reduced GC pressure
- Better performance (resize vs allocate)
- More deterministic memory usage

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2025-12-20 09:52:24 +01:00

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