feat(categories): expose category rule priority

[TimeToBuildBob]

Companion UI for ActivityWatch/aw-server-rust#663 and ActivityWatch/aw-core#153.

Adds the optional integer priority field to the category rule editor so users can override depth-based categorization order without manually editing exported JSON.

What changed:

• Add an optional Priority input for regex category rules.
• Save canonical priority values and normalize existing weight aliases on edit.
• Preserve integer priority values in preset category sets.
• Make aw-webui's local category helpers rank by explicit priority, falling back to depth.

Verification:

• npm run test -- --selectProjects node --runTestsByPath test/unit/classes.test.node.ts test/unit/presetCategories.test.node.ts
• npm run test -- --selectProjects jsdom --runTestsByPath test/unit/CategoryEditModal.test.js
• npm run lint (passes; existing config warnings only)
• npm run build (passes; existing Browserslist/Sass/Babel/asset-size warnings only)

Related: ActivityWatch/aw-server-rust#597. Do not close that issue until this PR merges.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.25%. Comparing base (a2ca625) to head (473e74c).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #968      +/-   ##
==========================================
+ Coverage   51.99%   52.25%   +0.26%     
==========================================
  Files          48       48              
  Lines        2927     2943      +16     
  Branches      652      692      +40     
==========================================
+ Hits         1522     1538      +16     
+ Misses       1385     1322      -63     
- Partials       20       83      +63     

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[greptile-apps]

Greptile Summary

The PR exposes optional integer priorities for regex category rules and supports canonicalizing the legacy weight alias.

• Adds localized priority controls and validation to the category editor.
• Preserves priorities when parsing presets and uses them when ranking local category matches.
• Adds unit coverage for editing, alias normalization, preset parsing, and category ranking.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
src/components/CategoryEditModal.vue	Adds localized priority input, integer validation, and canonical priority persistence; the previously reported localization issue is fixed.
src/util/classes.ts	Extends category rules with priority metadata and ranks matching categories by explicit priority with depth fallback.
src/util/presetCategories.ts	Validates and preserves integer priority values while normalizing the legacy weight alias.
test/unit/CategoryEditModal.test.js	Covers priority saving, clearing, legacy alias loading, and decimal rejection.
test/unit/classes.test.node.ts	Covers explicit priority and legacy weight behavior in local matching.
test/unit/presetCategories.test.node.ts	Covers valid priority preservation, weight normalization, and invalid preset rejection.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  E[Category rule editor] --> V[Validate integer priority]
  V --> C[Store canonical priority]
  W[Legacy weight alias] --> C
  P[Preset category rules] --> C
  C --> R[Rank matching categories]
  R --> M[Highest-priority match]

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_{Reviews (2): Last reviewed commit: "fix(categories): localize priority contr..." | Re-trigger Greptile}

[TimeToBuildBob]

Addressed the localization finding in 473e74c: the Priority label, Default placeholder, and integer validation message now use locale keys, with translations in all six supported locales.

Verified the focused CategoryEditModal tests (14 passed), locale-key parity for the three new keys, lint (0 errors; existing config warnings only), and pre-commit checks. CI for the new commit is running.

[TimeToBuildBob]

@greptileai review

[TimeToBuildBob]

CI-green and mergeable (Greptile 5/5) — waiting only on a maintainer click.

This PR is ready to merge, but the bot has pull-only access to this repo and can't self-merge — surfacing it here so it isn't lost. The monitoring loop will stop re-flagging it now that this note is posted.