Merge remote-tracking branch 'origin/main' into fix/501-removal-mark-gaps

database/maintenance.py

@@ -89,6 +89,12 @@ PROTECTIONS = (
         "with Library state (a title or an explicit parent)",
         "with Library state (a title or an explicit parent)",
     ),
+    (
+        # #443: an archived prompt is restorable, never pruned.
+        "EXISTS (SELECT 1 FROM prompt_archive pa WHERE pa.prompt_id = p.id)",
+        "archived in the Library",
+        "archived in the Library",
+    ),
     (
         "p.id IN (SELECT prompt_id FROM live_hint_prompts)",
         "used by recorded runs",
@@ -97,7 +103,8 @@ PROTECTIONS = (
 )
 
 # Exempt references: images, pairs, the __protected__ tag, Library parent
-# state, and live recorded-run hints (computed once, see LIVE_HINT_CTES).
+# state, the Library archive, and live recorded-run hints (computed once,
+# see LIVE_HINT_CTES).
 ORPHANED_PROMPTS_SQL = (
     "WITH "
     + LIVE_HINT_CTES