Addresses Codex review findings:
- .pending race condition: use .pending-$SESSION_ID instead of
shared .pending file to prevent concurrent session interference
- crash_clusters view: add total_occurrences and anonymous_occurrences
columns since anonymous tier has no installation_id
- Added test: own session pending marker is not finalized
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Telemetry backend infrastructure: telemetry_events table with RLS
(insert-only), installations table for retention tracking,
update_checks for install pings. Edge functions for update-check
(version + ping), telemetry-ingest (batch insert), and
community-pulse (weekly active count). SQL views for crash
clustering and skill co-occurrence sequences.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
