feat: add sqlite storage and terminal ui

docs/DEVELOPMENT.md

@@ -35,6 +35,25 @@ In worktrees or with `npm run dev`, ports may differ. Never assume defaults.
 
 Check `$PASEO_HOME/daemon.log` for trace-level logs.
 
+### Database queries
+
+Run arbitrary SQL against the SQLite database:
+
+```bash
+# Show table row counts
+npm run db:query
+
+# Run any SQL
+npm run db:query -- "SELECT agent_id, title, last_status FROM agent_snapshots"
+npm run db:query -- "SELECT agent_id, seq, item_kind FROM agent_timeline_rows ORDER BY committed_at DESC LIMIT 10"
+
+# Point at a specific DB directory
+npm run db:query -- --db /path/to/db "SELECT ..."
+```
+
+Auto-detects the running dev daemon's database from `/tmp/paseo-dev.*`, `PASEO_HOME`, or `~/.paseo/db`.
+Pass either a DB directory or a `paseo.sqlite` file to `--db`. The script opens the database directly in read-only mode.
+
 ## Build sync gotchas
 
 ### Relay → Daemon