feat: default watchlist semua, login-gate fitur, CI anti-stale via /api/version

backend/internal/store/rows.go

@@ -540,6 +540,28 @@ func (db *DB) Watchlist(userKey string) ([]string, error) {
 	return out, rows.Err()
 }
 
+// AllTickers returns every ticker that has snapshot data, excluding pseudo
+// tickers (IDX market-wide rows, ROE registry rows). This is the "semua"
+// default universe: dashboard, screener fallback, and scheduler depth all use
+// it when a user has no personal watchlist.
+func (db *DB) AllTickers() ([]string, error) {
+	rows, err := db.Query(`SELECT DISTINCT ticker FROM snapshots
+		WHERE ticker NOT IN ('IDX','ROE') ORDER BY ticker`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []string
+	for rows.Next() {
+		var t string
+		if err := rows.Scan(&t); err != nil {
+			return nil, err
+		}
+		out = append(out, t)
+	}
+	return out, rows.Err()
+}
+
 // AddWatch inserts a ticker (idempotent).
 func (db *DB) AddWatch(userKey, ticker string) error {
 	_, err := db.Exec(`INSERT INTO watchlists(user_key,ticker,added_at) VALUES(?,?,?)