This PR adds `SymExtension`, a typed extensible state mechanism for `SymM`, following the same pattern as `Grind.SolverExtension`. Extensions are registered at initialization time via `registerSymExtension` and provide typed `getState`/`modifyState` accessors. Extension state persists across `simp` invocations within a `sym =>` block and is re-initialized on each `SymM.run`. This enables modules (e.g., the upcoming arithmetic normalizer) to register persistent state without modifying `Sym.State` directly. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2 lines
30 B
Bash
2 lines
30 B
Bash
rm -rf .lake/build
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lake build
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