fix(mcp): use local sqlite scene storage

packages/mcp/src/storage/index.ts

@@ -1,29 +1,17 @@
 import type { SceneStore } from './types'
 
 export * from './slug'
+export * from './sqlite-scene-store'
 export * from './types'
 
 /**
- * Factory that picks the correct `SceneStore` backend based on env:
- * - If `SUPABASE_URL` and `SUPABASE_SERVICE_ROLE_KEY` are both set → Supabase.
- * - Otherwise → filesystem.
+ * Factory for Pascal's local-first scene store.
  *
- * Implementations are loaded via dynamic `import()` so consumers only pay the
- * cost of the backend they actually use.
+ * The store is backed by the runtime's built-in SQLite driver. By default it
+ * writes to `~/.pascal/data/pascal.db`; set `PASCAL_DB_PATH` for an exact file
+ * path or `PASCAL_DATA_DIR` for a directory containing `pascal.db`.
  */
 export async function createSceneStore(env?: NodeJS.ProcessEnv): Promise<SceneStore> {
-  const resolved = env ?? (typeof process !== 'undefined' ? process.env : undefined)
-  const supabaseUrl = resolved?.SUPABASE_URL
-  const supabaseKey = resolved?.SUPABASE_SERVICE_ROLE_KEY
-
-  if (supabaseUrl && supabaseKey) {
-    const mod = await import('./supabase-scene-store')
-    return new mod.SupabaseSceneStore({
-      url: supabaseUrl,
-      serviceRoleKey: supabaseKey,
-    })
-  }
-
-  const mod = await import('./filesystem-scene-store')
-  return new mod.FilesystemSceneStore()
+  const mod = await import('./sqlite-scene-store')
+  return new mod.SqliteSceneStore({ env })
 }