refactor(core): type unwrapTs and its each-block/index-key callers

[oekazuma]

Summary

• unwrapTs/isLengthOnlyArrayCall/isIdentityFreeEach/isIndexExpression/isIndexKey in component-parse.ts now use real types (TsExpression, AST.EachBlock, estree's Expression) instead of any.
• isParentCall/isBodyParseCall in kit-module-parse.ts gained a property.type === 'Identifier' narrowing that unwrapTs's new return type now forces.
• vite-config-parse.ts needed no changes — its call sites pass any into unwrapTs, which is still valid.
• Generic AST walkers (e.g. walkEstree) and the rest of these three files stay on the existing Node = any alias; this is intentionally the smallest safe slice, per prior discussion.
• Added @types/estree as a core devDependency (catalog-pinned) so the package's own tsconfig resolves the estree types it now imports.

Test plan

• pnpm build
• pnpm typecheck
• pnpm test
• pnpm lint
• pnpm check:publish
• packages/action/dist rebuilt and included

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Improved handling of TypeScript expressions and component syntax during analysis.
  • Increased accuracy when identifying list indexes, list keys, and array patterns.
  • Improved detection of parent and body method calls in performance analysis.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 247e87a9-e0e0-4995-a2a9-11e325f8a927

📥 Commits

Reviewing files that changed from the base of the PR and between 44a3485 and 5ea50ac.

⛔ Files ignored due to path filters (2)

• packages/action/dist/index.js is excluded by !**/dist/**
• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (3)

• packages/core/package.json
• packages/core/src/component-parse.ts
• packages/core/src/kit-module-parse.ts

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📝 Walkthrough

Walkthrough

The PR adds typed ESTree and Svelte AST handling for component expression analysis, tightens {#each} index-key detection, adds @types/estree for development, and restricts parent/body parsing call recognition to explicit non-computed member expressions.

Changes

AST analysis updates

Layer / File(s)	Summary
Typed component expression analysis packages/core/package.json, packages/core/src/component-parse.ts	Adds TypeScript AST wrapper types, typed unwrapping, stricter array and index-expression checks, and typed {#each} handling.
Module call-shape checks packages/core/src/kit-module-parse.ts	Requires parent and body parsing calls to use non-computed member expressions with matching identifier properties.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Possibly related PRs

• oekazuma/svelte-vitals#112: Modifies the same component parsing logic and related ESTree unwrapping and index-key analysis.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main refactor: typing unwrapTs and its each-block/index-key callers.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

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• Commit on current branch

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