Fix automation retrieval validity check

Author: sabaimran

src/khoj/database/adapters/__init__.py

@@ -1839,8 +1839,8 @@ def get_automations_metadata(user: KhojUser):
     @staticmethod
     def get_automation(user: KhojUser, automation_id: str) -> Job:
         # Perform validation checks
-        # Check if user is allowed to delete this automation id
-        if not is_none_or_empty(automation_id) or automation_id.startswith(f"automation_{user.uuid}_"):
+        # Check if user is allowed to retrieve this automation id
+        if is_none_or_empty(automation_id) or not automation_id.startswith(f"automation_{user.uuid}_"):
             raise ValueError("Invalid automation id")
         # Check if automation with this id exist
         automation: Job = state.scheduler.get_job(job_id=automation_id)
@@ -1852,8 +1852,8 @@ def get_automation(user: KhojUser, automation_id: str) -> Job:
     @staticmethod
     async def aget_automation(user: KhojUser, automation_id: str) -> Job:
         # Perform validation checks
-        # Check if user is allowed to delete this automation id
-        if not automation_id.startswith(f"automation_{user.uuid}_"):
+        # Check if user is allowed to retrieve this automation id
+        if is_none_or_empty(automation_id) or not automation_id.startswith(f"automation_{user.uuid}_"):
             raise ValueError("Invalid automation id")
         # Check if automation with this id exist
         automation: Job = await sync_to_async(state.scheduler.get_job)(job_id=automation_id)