alonso.torres 4eb64ff7e9 🐛 Predict grid growth in the composable override model
Retain authored cell bounds and direction through identity remapping.
Use accepted reference context and child identities to predict new cells
and track capacity without reading resulting cell values. Check expected
bounds as well as cell values, while keeping pending copies unchanged.

Cover row/column growth, corruption, structural histories, stale libraries
and exact undo/redo. Keep the original four failing assertions unchanged.
Pin the separate source-library frontend routing gap as F248 with an exact
failure signature and a passing source-editor control.

Validation: full common JVM/JavaScript and frontend suites; backend/exporter
CI; common/frontend lint and format. All six common component properties
pass 40 programs at seed 712 in both runtimes. Focused controls: 6 tests,
89 assertions. No production code changed; no sync benchmark was required.

AI-assisted-by: gpt-6
2026-10-30 09:50:19 +01:00
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