feat(heartbeat): change default target to 'last' and remove target option from UI

backend/app/api/board_groups.py

@@ -235,10 +235,7 @@ def _update_agent_heartbeat(
     if isinstance(raw, dict):
         heartbeat.update(raw)
     heartbeat["every"] = payload.every
-    if payload.target is not None:
-        heartbeat["target"] = payload.target
-    elif "target" not in heartbeat:
-        heartbeat["target"] = DEFAULT_HEARTBEAT_CONFIG.get("target", "none")
+    heartbeat["target"] = DEFAULT_HEARTBEAT_CONFIG.get("target", "last")
     agent.heartbeat_config = heartbeat
     agent.updated_at = utcnow()
 

backend/app/schemas/board_group_heartbeat.py

@@ -16,8 +16,6 @@ class BoardGroupHeartbeatApply(SQLModel):
     # Heartbeat cadence string understood by the OpenClaw gateway
     # (e.g. "2m", "10m", "30m").
     every: str
-    # Optional heartbeat target (most deployments use "none").
-    target: str | None = None
     include_board_leads: bool = False
 
 

backend/app/services/openclaw/constants.py

@@ -13,7 +13,7 @@ _GATEWAY_AGENT_SUFFIX = ":main"
 
 DEFAULT_HEARTBEAT_CONFIG: dict[str, Any] = {
     "every": "10m",
-    "target": "none",
+    "target": "last",
     "includeReasoning": False,
 }
 

backend/tests/test_agent_provisioning_utils.py

@@ -307,7 +307,7 @@ async def test_control_plane_upsert_agent_create_then_update(monkeypatch):
             agent_id="board-agent-a",
             name="Board Agent A",
             workspace_path="/tmp/workspace-board-agent-a",
-            heartbeat={"every": "10m", "target": "none", "includeReasoning": False},
+            heartbeat={"every": "10m", "target": "last", "includeReasoning": False},
         ),
     )
 
@@ -341,7 +341,7 @@ async def test_control_plane_upsert_agent_handles_already_exists(monkeypatch):
             agent_id="board-agent-a",
             name="Board Agent A",
             workspace_path="/tmp/workspace-board-agent-a",
-            heartbeat={"every": "10m", "target": "none", "includeReasoning": False},
+            heartbeat={"every": "10m", "target": "last", "includeReasoning": False},
         ),
     )