- New caching_custom_backfill_jobs and caching_custom_backfill_batches tables
- Admin API (POST create/cancel, GET list) at admin/api/custom_backfill.php
- Admin UI form with preset buttons and job status table on Backfill page
- Caching daemon module (custom_backfill.c) processes jobs independently
- pg_inbox functions for job/batch claim, progress update, and cancel
- Three batch modes: author-batched, id-batched, time-window scan
- Fixed done_batches overcount on job completion
- Admin config now environment-variable driven (C_RELAY_DB_*)
- admin/serve.sh supports separate instances for different databases
- make_and_restart_relay.sh only kills relay on target port, not all relays
- Added caching_relays unified table with live_enabled/backfill_enabled columns
- Separated --reset-backfill from --start-caching as independent flags
- Removed redundant caching_enabled master setting; daemon derives from live/backfill
- Set caching_inbox_enabled=true by default; removed Inbox toggle from Backfill page
- Set caching_live_strategy=cache_all by default
- Fixed outbox relay discovery to store ALL discovered relays, not just covering set
- Added store_kind_0_information config (default: true) to gate profile sync trigger
- Regenerated pg_schema.h from pg_schema.sql to include caching_relays table
- Fixed process toggle button styling to match monochrome aesthetic
- Fixed radio button styling to match black/white/red theme
- Simplified Backfill page: removed Service Status and Inbox Status sections
- Backfill status now respects config setting, not just daemon state
- Admin config API now bumps caching_config_generation for caching-related changes
- make_and_restart_relay.sh now resets PostgreSQL schema on fresh restart