feat: auto-archive inactive chats with audit trail (#24642)

Adds a background job in `dbpurge` that periodically archives chats
inactive beyond a configurable threshold. Each archived root chat gets a
background audit entry tagged `chat_auto_archive`. Disabled by default.

* New `AutoArchiveInactiveChats` SQL query with LATERAL last-activity
subquery and partial index on archive candidates
* `site_configs`-backed `auto_archive_days` setting with admin-only PUT,
any-authenticated-user GET
* Cascade archive via `root_chat_id`; pinned chats and active threads
exempt
* Root-only audit dispatch on detached context, matching manual archive
(`patchChat`) behavior
* 11 subtests covering disabled no-op, boundary, deleted messages, child
activity, pinned exemption, multi-owner, idempotency, and batch
pagination

PR #24643 adds per-owner digest notifications.
PR #24704 adds the requisite UI controls.

> 🤖
This commit is contained in:
Cian Johnston
2026-04-24 14:18:28 +01:00
committed by GitHub
parent 346b46228f
commit a876287d36
26 changed files with 1504 additions and 46 deletions
+2
View File
@@ -3860,6 +3860,8 @@ CREATE INDEX idx_chat_queued_messages_chat_id ON chat_queued_messages USING btre
CREATE INDEX idx_chats_agent_id ON chats USING btree (agent_id) WHERE (agent_id IS NOT NULL);
CREATE INDEX idx_chats_auto_archive_candidates ON chats USING btree (created_at) WHERE ((archived = false) AND (pin_order = 0) AND (parent_chat_id IS NULL));
CREATE INDEX idx_chats_labels ON chats USING gin (labels);
CREATE INDEX idx_chats_last_model_config_id ON chats USING btree (last_model_config_id);