chore: clarify tseynit indentation handling

[pwkazn]

Summary

• Rename the statement indentation parameter from ident to indent.
• Stop threading the unused indentation argument through expression stringification.

Closes #2974

Testing

• pnpm exec vitest run packages/typegpu/tests/internal/tseynit.test.ts --project=!browser
• pnpm --filter typegpu test:types
• pnpm exec oxlint -c oxlint.config.ts --max-warnings=0 --type-aware packages/typegpu/src/shared/tseynit.ts packages/typegpu/tests/internal/tseynit.test.ts --report-unused-disable-directives
• pnpm exec oxfmt --check packages/typegpu/src/shared/tseynit.ts

[Copilot]

🟢 Approval recommended

The refactor is internally consistent (no remaining call sites with the removed parameter) and does not change expression/statement output behavior aside from the intended naming/cleanup.

Pull request overview

This PR refines the tseynit AST-to-JS stringifier by clarifying indentation parameter naming and simplifying expression stringification, aligning with issue #2974’s request to remove an unused indentation argument from expression handling.

Changes:

• Renames the statement indentation parameter from ident to indent for clarity.
• Removes the indentation argument from stringifyExpression and wrapIfComplex, and updates all internal call sites accordingly.

File summaries

File	Description
packages/typegpu/src/shared/tseynit.ts	Renames the statement indentation parameter and removes unused indentation threading through expression stringification helpers.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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[pullfrog]

✅ No new issues found.

Reviewed changes

• ident → indent rename in stringifyStatement — clarifies that the parameter carries indentation whitespace, not an identifier.
• Drop unused indent arg from expression stringification — removed the indent/ident argument threaded through stringifyExpression and wrapIfComplex, since it was never consumed for output.

The argument was threaded but never used in expression stringification, so the removal produces byte-identical output. All call sites are internal to tseynit.ts (stringifyNode is the only export), and pnpm exec vitest run packages/typegpu/tests/internal/tseynit.test.ts --project=!browser passes 29/29 with no snapshot churn — confirming this is a clean, behavior-preserving cleanup.

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