refactor: replace DefaultLimitOffsetPage with LimitOffsetPage in multiple files and update timezone handling to use UTC

backend/app/services/agent_provisioning.py

@@ -738,7 +738,7 @@ def _should_include_bootstrap(
     if not existing_files:
         return False
     entry = existing_files.get("BOOTSTRAP.md")
-    return not (entry and entry.get("missing") is True)
+    return not bool(entry and entry.get("missing"))
 
 
 async def _set_agent_files(
@@ -753,7 +753,7 @@ async def _set_agent_files(
             continue
         if name in PRESERVE_AGENT_EDITABLE_FILES:
             entry = existing_files.get(name)
-            if entry and entry.get("missing") is not True:
+            if entry and not bool(entry.get("missing")):
                 continue
         try:
             await openclaw_call(

backend/app/services/task_dependencies.py

@@ -117,20 +117,20 @@ def _has_cycle(nodes: Sequence[UUID], edges: Mapping[UUID, set[UUID]]) -> bool:
     visited: set[UUID] = set()
     in_stack: set[UUID] = set()
 
-    def dfs(node: UUID) -> bool:
-        if node in in_stack:
+    def dfs(current: UUID) -> bool:
+        if current in in_stack:
             return True
-        if node in visited:
+        if current in visited:
             return False
-        visited.add(node)
-        in_stack.add(node)
-        for nxt in edges.get(node, set()):
+        visited.add(current)
+        in_stack.add(current)
+        for nxt in edges.get(current, set()):
             if dfs(nxt):
                 return True
-        in_stack.remove(node)
+        in_stack.remove(current)
         return False
 
-    return any(dfs(node) for node in nodes)
+    return any(dfs(start_node) for start_node in nodes)
 
 
 async def validate_dependency_update(

backend/app/services/template_sync.py

@@ -132,8 +132,8 @@ class _GatewayBackoff:
     def reset(self) -> None:
         self._delay_s = self._base_delay_s
 
+    @staticmethod
     async def _attempt(
-        self,
         fn: Callable[[], Awaitable[T]],
     ) -> tuple[T | None, OpenClawGatewayError | None]:
         try: