fix(search): sync keyword highlights and deduplicate filters

[RYGRIT]

This PR fixes two issues:

• Persistent Highlights: Keyword highlights now properly clear when the search input changes (updated the route.query.q watcher).
• Keyword Sync: Toggling a highlighted keyword now correctly removes it from the input, handling both kw: and keyword: formats.

Also added deduplication for keywords in the filter state.

Before

2026-02-08.15-50-59.mp4

After

freecompress-2026-02-08.22-38-24.mp4

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Project	Deployment	Actions	Updated (UTC)
npmx.dev	Ready	Preview, Comment	Feb 8, 2026 2:45pm

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs.npmx.dev	Ignored	Preview	Feb 8, 2026 2:45pm
npmx-lunaria	Ignored		Feb 8, 2026 2:45pm

[codecov]

Codecov Report

❌ Patch coverage is 70.83333% with 7 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
app/composables/useStructuredFilters.ts	70.83%	3 Missing and 4 partials ⚠️

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[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request modifies the structured filters composable to implement keyword deduplication and improve filter synchronisation. Changes include adding a private escapeRegExp helper function for safe regex usage, deduplicating keywords case-insensitively during search operator parsing, and enhancing the removeKeyword function to handle both kw: and keyword: formats with comma-separated values. The UseStructuredFiltersOptions interface gains an optional initialSort parameter. Filter state initialisation and URL synchronisation are refined to properly reflect parsed search operators. Corresponding test coverage is added for keyword deduplication, clearing, and various operator scenarios.

🚥 Pre-merge checks | ✅ 1

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description check	✅ Passed	The pull request description clearly relates to the changeset, detailing fixes for keyword highlight persistence and synchronisation, plus deduplication.

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✨ Finishing touches

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• Post copyable unit tests in a comment

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No actionable comments were generated in the recent review. 🎉

🧹 Recent nitpick comments

app/composables/useStructuredFilters.ts (1)

78-87: Align keyword casing across filters to prevent duplicates.

Dedup is case‑insensitive but downstream keyword checks (e.g., add/remove) are case‑sensitive, so keywords with different casing can reappear. Consider a case‑insensitive compare in add/remove to keep behaviour consistent with the new dedup logic.

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