update beads db

.beads/.gitignore

@@ -1,5 +1,6 @@
 # SQLite databases
 *.db
+*.db?*
 *.db-journal
 *.db-wal
 *.db-shm
@@ -14,11 +15,15 @@ bd.sock
 db.sqlite
 bd.db
 
+# Merge artifacts (temporary files from 3-way merge)
+beads.base.jsonl
+beads.base.meta.json
+beads.left.jsonl
+beads.left.meta.json
+beads.right.jsonl
+beads.right.meta.json
+
 # Keep JSONL exports and config (source of truth for git)
-!*.jsonl
+!issues.jsonl
 !metadata.json
 !config.json
-
-# 3-way merge snapshot files (local-only, for deletion tracking)
-beads.base.jsonl
-beads.left.jsonl