Pin the final egui, winit and shared UI revisions and reconcile current main.
Preserve document-epoch input and screenshot boundaries, host action ordering,
and Windows path regression coverage. Add click/End batch characterization.
Validation: all nine Linux CI stages pass (3230 tests, zero failures); Windows
CI and bounded native editing workflows pass on the same production source.
* chore: resolve SonarCloud maintainability issues
- Replace lambda closures with method references (S1612)
- Replace wildcard imports with explicit imports (S2208)
- Refactor complex functions with extracted helpers (S3776)
- Replace OR pattern with range pattern in math parser (S9047)
* style: apply rustfmt to warichu helper
* fix(compose): revert slice conversion in tests and remove unused var in warichu
* Group warichu row layout scalars to satisfy S107 parameter limit
* style: satisfy rustfmt in warichu.rs
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Co-authored-by: Dylan Taylor <dylan@craftmaker.dev>
`math.svg` and `math.insert` take an unbounded `latex` string, and the parser's
arg/atom/list/list_until_right recursive descent recursed once per group: 100k
nested braces, `\frac`s or `\left(`s overflowed the stack (an abort the command
guard cannot catch). Past MAX_NESTING (256) groups stop descending, so the rest
of the input is consumed iteratively.
Regression test: 100k nested braces, `\frac`s and `\left(`s typeset to an SVG;
the old code aborted with a stack overflow.
aiongg