Add the media MCP tools and live-verified slopbot path

media-scrape/src/store.ts

@@ -135,6 +135,8 @@ CREATE TABLE IF NOT EXISTS media (
     preview_url TEXT,
     file_hash TEXT,
     preview_hash TEXT,
+    file_bytes INTEGER,
+    preview_bytes INTEGER,
     created_at TEXT NOT NULL
 );
 
@@ -155,6 +157,16 @@ export class ScrapeStore {
     constructor(readonly dir: string) {
         this.db = new DatabaseSync(join(dir, "index.db"));
         this.db.exec(SCHEMA);
+        this.migrate();
+    }
+
+    /** Add columns introduced after a scrape was created. */
+    private migrate(): void {
+        const columns = this.db.prepare("PRAGMA table_info(media)").all() as unknown as Array<{ name: string }>;
+        const names = new Set(columns.map(column => column.name));
+
+        if (!names.has("file_bytes")) this.db.exec("ALTER TABLE media ADD COLUMN file_bytes INTEGER");
+        if (!names.has("preview_bytes")) this.db.exec("ALTER TABLE media ADD COLUMN preview_bytes INTEGER");
     }
 
     close(): void {
@@ -216,10 +228,12 @@ export class ScrapeStore {
         return added;
     }
 
-    /** Sum of the recorded source sizes per kind. Used by the storage bar. */
-    sumBytesByKind(): Record<MediaKind, number> {
+    /** Bytes actually on disk per kind (downloaded files and cached previews). */
+    storedBytesByKind(): Record<MediaKind, number> {
         const rows = this.db
-            .prepare("SELECT kind, COALESCE(SUM(size), 0) AS bytes FROM media GROUP BY kind")
+            .prepare(
+                "SELECT kind, COALESCE(SUM(COALESCE(file_bytes, 0) + COALESCE(preview_bytes, 0)), 0) AS bytes FROM media GROUP BY kind"
+            )
             .all() as unknown as Array<{ kind: string; bytes: number }>;
 
         const result = emptyMediaCounts();
@@ -241,6 +255,13 @@ export class ScrapeStore {
         return result;
     }
 
+    getMedia(id: number): MediaRow | null {
+        const row = this.db.prepare("SELECT * FROM media WHERE id = ?").get(id) as unknown as
+            | MediaRow
+            | undefined;
+        return row ?? null;
+    }
+
     queryMedia(options: { kind?: MediaKind; limit?: number; offset?: number } = {}): MediaRow[] {
         const limit = Math.max(1, Math.min(options.limit ?? 50, 500));
         const offset = Math.max(0, options.offset ?? 0);