Fix OverflowError for a large 32-bit usize

[rewitt94]

Two issues would cause crashes (traps) in wasm (needs a 32-bit build):

• collections.deque([], 2**40)
• bytes(2**40)

Raise an OverflowError error pre-emptively instead.

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Summary by cubic

Fixes 32-bit wasm traps by raising OverflowError when size-like ints exceed usize. Previously deque([], 2**40) and bytes(2**40) crashed; now they raise CPython-matching messages. 64-bit behavior is unchanged.

• Add crates/monty-js/__test__/wasm_word_size.spec.ts to assert exceptions and session survival in @pydantic/monty/wasm (skipped in browser).
• bytes: make usize::try_from fallible and map errors to OverflowError via overflow_index_sized_int.
• deque: make maxlen conversion fallible and map errors to OverflowError via overflow_c_ssize_t to match CPython wording.
• Rename internal helper overflow_repeat_count to overflow_index_sized_int; update callers in long_int.rs.
• Docs: clarify 32-bit vs 64-bit behavior and note bytes edge cases; pool architecture limitations wording updated.

^{Written for commit a1d3eda. Summary will update on new commits.}

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
crates/monty/src/types/bytes.rs	0.00%	0 Missing and 1 partial ⚠️
crates/monty/src/types/deque.rs	0.00%	0 Missing and 1 partial ⚠️
crates/monty/src/types/long_int.rs	66.66%	0 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!

[cubic-dev-ai]

All reported issues were addressed across 7 files

<sub>Reply with feedback, questions, or to request a fix.

Re-trigger cubic</sub>

[codspeed-hq]

Merging this PR will not alter performance

✅ 36 untouched benchmarks
⏩ 16 skipped benchmarks¹

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_{Comparing rewitt94:fix-32bit-size-overflow-panics (a1d3eda) with main (edeb82a)}

Footnotes

1. 16 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩