TOTP code db + agent support for fetching totp_code from db (#784)

Co-authored-by: Shuchang Zheng <wintonzheng0325@gmail.com>

skyvern/forge/sdk/db/id.py

@@ -119,6 +119,11 @@ def generate_task_generation_id() -> str:
     return f"{TASK_GENERATION_PREFIX}_{int_id}"
 
 
+def generate_totp_code_id() -> str:
+    int_id = generate_id()
+    return f"totp_{int_id}"
+
+
 def generate_id() -> int:
     """
     generate a 64-bit int ID