Add QR pairing (terminal QR, in-app scanner, iris://pair deep link)

gateway-plugin/search.py

@@ -224,7 +224,7 @@ def search(
     try:
         conn = sqlite3.connect(f"file:{db_path}?mode=ro", uri=True)
     except sqlite3.Error as e:
-        logger.warning("android search: open failed: %s", e)
+        logger.warning("iris search: open failed: %s", e)
         return []
     conn.row_factory = sqlite3.Row
     try:
@@ -232,10 +232,10 @@ def search(
             try:
                 return _fts_query(conn, sanitized, scope, chat_id, thread_id, limit)
             except sqlite3.Error as e:
-                logger.debug("android search: FTS5 failed, using LIKE: %s", e)
+                logger.debug("iris search: FTS5 failed, using LIKE: %s", e)
         return _like_query(conn, sanitized, scope, chat_id, thread_id, limit)
     except sqlite3.Error as e:
-        logger.warning("android search: query failed: %s", e)
+        logger.warning("iris search: query failed: %s", e)
         return []
     finally:
         # Best-effort: a close failure on a read-only connection is not