Add consent-gated media exchange library

src/database/client.ts

@@ -364,6 +364,54 @@ export function runMigrations(db: Database.Database): void {
       CREATE INDEX idx_conversation_automation_claims_status
         ON conversation_automation_claims(account_id, status, claimed_at);
     `),
+    () => db.exec(`
+      CREATE TABLE IF NOT EXISTS media_library_assets (
+        asset_id TEXT PRIMARY KEY,
+        tags_json TEXT NOT NULL,
+        safety TEXT NOT NULL CHECK(safety IN ('sfw', 'nsfw', 'unknown')),
+        classification_status TEXT NOT NULL CHECK(classification_status IN ('ready', 'failed')),
+        description TEXT,
+        confidence REAL,
+        file_name TEXT NOT NULL,
+        relative_path TEXT NOT NULL UNIQUE,
+        mime_type TEXT NOT NULL,
+        size_bytes INTEGER NOT NULL,
+        width INTEGER NOT NULL,
+        height INTEGER NOT NULL,
+        sha256 TEXT NOT NULL UNIQUE,
+        enabled INTEGER NOT NULL DEFAULT 0 CHECK(enabled IN (0, 1)),
+        consent_confirmed_at INTEGER NOT NULL,
+        created_at INTEGER NOT NULL,
+        updated_at INTEGER NOT NULL,
+        deleted_at INTEGER
+      );
+      CREATE INDEX IF NOT EXISTS idx_media_library_assets_enabled
+        ON media_library_assets(enabled, classification_status, created_at DESC);
+
+      CREATE TABLE IF NOT EXISTS media_library_sends (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        asset_id TEXT NOT NULL,
+        asset_sha256 TEXT NOT NULL,
+        account_id TEXT NOT NULL,
+        conversation_id TEXT NOT NULL,
+        incoming_key TEXT NOT NULL,
+        request_kind TEXT NOT NULL CHECK(request_kind IN ('generic', 'penis', 'chest', 'selfie', 'topless', 'feet')),
+        status TEXT NOT NULL CHECK(status IN ('pending', 'sent', 'failed', 'superseded')),
+        requested_at INTEGER NOT NULL,
+        sent_at INTEGER,
+        matrix_media_event_id TEXT,
+        matrix_text_event_id TEXT,
+        mxc_uri TEXT,
+        error TEXT,
+        UNIQUE(account_id, conversation_id, incoming_key),
+        UNIQUE(account_id, conversation_id, asset_id),
+        UNIQUE(account_id, conversation_id, asset_sha256),
+        FOREIGN KEY (asset_id) REFERENCES media_library_assets(asset_id),
+        FOREIGN KEY (account_id) REFERENCES reddit_accounts(account_id) ON DELETE CASCADE
+      );
+      CREATE INDEX IF NOT EXISTS idx_media_library_sends_conversation
+        ON media_library_sends(account_id, conversation_id, requested_at);
+    `),
   ];
 
   let currentVersion = db.pragma('user_version', { simple: true }) as number;