feat(classify): optional priority field for category rules

[TimeToBuildBob]

Optional priority (alias weight) on categorize rules, as discussed in #597.

• Explicit integer on the rule dict: higher wins
• Omitted: existing depth ranking, unchanged
• Query example: { "type": "regex", "regex": "vim", "priority": 10 }

In the reported tree (A matches at depth 1, B→B1 matches at depth 2) A wins if its priority is higher than B1's depth.

Does not change default configs. WebUI editor field and aw-core/Python ranking are separate follow-ups — not closing #597 here.

[greptile-apps]

Greptile Summary

Adds optional priority and weight ranking fields to category rules while preserving depth-based ranking when omitted.

• Introduces the CategoryRule structure for category, rule, and optional priority.
• Parses and validates query-provided priority values.
• Preserves Uncategorized when a matching rule has an empty category path.
• Adds transform-level and query-level regression coverage for ranking and validation behavior.

Confidence Score: 5/5

The PR appears safe to merge.

The previously reported empty-category regression is fixed by skipping empty category paths before ranking, and no blocking failure remains.

Important Files Changed

Filename	Overview
aw-query/src/datatype.rs	Converts query category-rule tuples into CategoryRule values and validates optional integer priorities.
aw-query/src/functions.rs	Updates the categorize built-in to pass structured category rules into the transform.
aw-query/tests/query.rs	Adds end-to-end coverage for priority overrides, the weight alias, and invalid priority values.
aw-transform/src/classify.rs	Implements priority-aware category ranking and safely preserves the fallback for empty category paths.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
    A[Query category rule] --> B[Parse optional priority or weight]
    B --> C{Category path empty?}
    C -- Yes --> D[Skip rule]
    C -- No --> E{Rule matches event?}
    E -- No --> F[Check next rule]
    E -- Yes --> G[Rank by explicit priority or category depth]
    G --> H[Keep highest-ranked category]
    H --> I[Write category to event]

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_{Reviews (2): Last reviewed commit: "fix(classify): skip empty category paths..." | Re-trigger Greptile}

[TimeToBuildBob]

Empty-category fallback fixed in 676c090 (Greptile P1).

macOS test_push_does_not_reexport_synced_buckets failure is the known aw-sync tmp_db collision (duplicate column name: data) — same flake #655 targets. Unrelated to this change; ubuntu/windows/android/clippy/format are green.

[TimeToBuildBob]

@greptileai review

[codecov]

Codecov Report

❌ Patch coverage is 93.97590% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.79%. Comparing base (656f3c9) to head (676c090).
⚠️ Report is 93 commits behind head on master.

Files with missing lines	Patch %	Lines
aw-query/src/datatype.rs	88.88%	3 Missing ⚠️
aw-transform/src/classify.rs	92.59%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #663      +/-   ##
==========================================
+ Coverage   70.81%   78.79%   +7.98%     
==========================================
  Files          51       66      +15     
  Lines        2916     5523    +2607     
==========================================
+ Hits         2065     4352    +2287     
- Misses        851     1171     +320     

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[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.