feat: initialize aivideo project

backend/app/common/utils/id_gen.py

@@ -0,0 +1,17 @@
+from datetime import datetime
+from random import choices
+from string import ascii_uppercase, digits
+from uuid import uuid4
+
+
+def new_public_id(prefix: str) -> str:
+    return f"{prefix}_{uuid4().hex[:16]}"
+
+
+def new_order_no(prefix: str) -> str:
+    return f"{prefix}_{datetime.now():%Y%m%d%H%M%S}{uuid4().hex[:6]}"
+
+
+def new_invite_code(length: int = 6) -> str:
+    return "".join(choices(ascii_uppercase + digits, k=length))
+