fix: mtls for agent, problems with auth

backend/internal/storage/migrations.go

@@ -15,6 +15,12 @@ const CreateSqlite = `
 );
 `
 
+// AddIsActiveColumn adds is_active column to tokens table if it doesn't exist.
+// This is a migration for existing databases that don't have this column.
+const AddIsActiveColumn = `
+	ALTER TABLE tokens ADD COLUMN is_active BOOL NOT NULL DEFAULT 0
+`
+
 const CreateRegistrationTokensTable = `
 CREATE TABLE IF NOT EXISTS registration_tokens (
 	id INTEGER PRIMARY KEY AUTOINCREMENT,

backend/internal/storage/sqlite.go

@@ -36,5 +36,8 @@ func Open(path string) (*sql.DB, error) {
 		return nil, fmt.Errorf("migrate: %w", err)
 	}
 
+	// Migration: add is_active column if it doesn't exist
+	_, _ = db.Exec(AddIsActiveColumn)
+
 	return db, nil
 }