fix: improve optional watch file tracking

[DylanPiercey]

No description provided.

[changeset-bot]

🦋 Changeset detected

Latest commit: 832436b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@marko/vite	Patch

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[coderabbitai]

Walkthrough

This pull request refactors the optional watch file tracking logic in the Vite integration for Marko. A new regex pattern (optionalWatchFileReg) is introduced to detect optional watch files like marko-tag.json and style/component variant files. The transformOptionalFiles data structure and related tracking logic are removed, replacing the previous iteration-based approach with direct pattern matching. The watcher logic is simplified so that when files are added or unlinked, it directly detects matching patterns and emits change events for corresponding Marko files. The getPosixBasenameWithoutExt helper function is also removed. The transformWatchFiles mapping is retained for tracking watched files per entry. A new changeset entry documents this patch release.

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check	❓ Inconclusive	No pull request description was provided by the author. While some level of detail is missing, this is a very lenient check and a minimal description passes unless completely off-topic.	Consider adding a brief description explaining the motivation and benefits of the optional watch file tracking improvements to help reviewers understand the context.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Title check	✅ Passed	The pull request title 'fix: improve optional watch file tracking' is directly related to the main change of refactoring and improving the optional watch file tracking logic in src/index.ts.

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✨ Finishing touches

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