feat: include sqlcommenter tags in CI query payload

[veksen]

Summary

• Extract SQLCommenter tags from Analyzer.analyze() and include in QueryProcessResult
• Add tags: SQLCommenterTag[] to CiQueryPayload interface
• Map tags through all mapResultToQuery() cases to the Site API payload
• Update test fixtures

Context

Companion to Query-Doctor/Site#2615. The Site repo now accepts and stores tags on CiRunQueryResult (optional, defaults to []). This PR makes the analyzer actually send them.

Once both PRs are merged, CI-captured queries will show sqlcommenter metadata (route, method, file, etc.) in the query detail view.

Test plan

• TypeScript compiles cleanly (tsc --noEmit)
• All QueryProcessResult return paths include tags
• All mapResultToQuery() cases include tags: result.tags
• Test fixtures updated

🤖 Generated with Claude Code

[github-actions]

Query Doctor Analysis

View full run details

28 queries analyzed

2 pre-existing issues

• SELECT "guests"."id", "guests"."session_id", "guests"."username", "guests"."avatar_path", "guests"."color", "guests"."side", "guests"."audio_recording_path", "guests"."audio_recording_public", "gue...
  index assets(event_id, uploader_id, inserted_at desc)
  cost 15,922 → 1,639 (90% reduction)
• SELECT * FROM guest_ip_addresses WHERE ip_address = '127.0.0.1';
  index guest_ip_addresses(ip_address)
  cost 126 → 9 (93% reduction)

_{Using assumed statistics (10000 rows/table). For better results, sync production stats.}