…alculation

This commit implements output-to-input coordinate mapping for LinearLayout
visualization by leveraging Triton's basis-based approach:

Core Features:
- Add fromBitMatrix() and invert() methods using binary Gaussian elimination
- Implement output-traversal mode that applies inverted layout to recover input coordinates
- Add live matrix updates: canvas refreshes immediately as user edits matrix
- Simplify tooltip to show input/output coordinates with correct bit widths (log2 of dimension size)
- Add vertical matrix basis calculation display matching Triton's format
- Fix basis column and row ordering to match matrix editor

UI/UX Improvements:
- Add spacing between basis columns from different inputs in tooltip for visual clarity
- Remove text labels from LinearLayout canvas cells (color-coded only) to avoid dimension name mismatch
- Keep text labels for WMMA/MFMA tabs which use canonical dimension names

Performance & Correctness:
- Fix double layout computation: eliminate redundant rebuild when dimension edits trigger matrix-change event
- Align invert()/isInvertible() with Triton's "square and surjective" requirement
- Remove unused columnIndex field from BasisColumnDescriptor

Default parameters: output 16×16, input reg(8) + thread(32)
All 115 tests passing.

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

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