chore(chat): make long-running operation TTL configurable

Add `long_running_operation_ttl` to ChatConfig (default 600 seconds).
This controls the Redis key TTL for tracking running operations,
serving as a safety net if a pod dies during execution.

autogpt_platform/backend/backend/api/features/chat/config.py

@@ -38,6 +38,12 @@ class ChatConfig(BaseSettings):
         default=3, description="Maximum number of agent schedules"
     )
 
+    # Long-running operation configuration
+    long_running_operation_ttl: int = Field(
+        default=600,
+        description="TTL in seconds for long-running operation tracking in Redis (safety net if pod dies)",
+    )
+
     # Langfuse Prompt Management Configuration
     # Note: Langfuse credentials are in Settings().secrets (settings.py)
     langfuse_prompt_name: str = Field(

autogpt_platform/backend/backend/api/features/chat/service.py

@@ -72,7 +72,6 @@ langfuse = get_client()
 # Redis key prefix for tracking running long-running operations
 # Used for idempotency across Kubernetes pods - prevents duplicate executions on browser refresh
 RUNNING_OPERATION_PREFIX = "chat:running_operation:"
-RUNNING_OPERATION_TTL = 600  # 10 minutes - safety net if pod dies during execution
 
 
 async def _mark_operation_started(tool_call_id: str) -> bool:
@@ -84,7 +83,7 @@ async def _mark_operation_started(tool_call_id: str) -> bool:
     redis = await get_redis_async()
     key = f"{RUNNING_OPERATION_PREFIX}{tool_call_id}"
     # SETNX with TTL - atomic "set if not exists"
-    result = await redis.set(key, "1", ex=RUNNING_OPERATION_TTL, nx=True)
+    result = await redis.set(key, "1", ex=config.long_running_operation_ttl, nx=True)
     return result is not None