fix: bump uv-pre-commit to 0.11.3, distinguish checkpoint resume

- Bump uv-pre-commit from 0.9.3 to 0.11.3 to support relative
  exclude-newer values in pyproject.toml
- Use checkpoint_kickoff_event_id to detect resume, preventing
  second kickoff() from skipping tasks or suppressing events

.pre-commit-config.yaml

@@ -21,7 +21,7 @@ repos:
         types: [python]
         exclude: ^(lib/crewai/src/crewai/cli/templates/|lib/crewai/tests/|lib/crewai-tools/tests/|lib/crewai-files/tests/)
   - repo: https://github.com/astral-sh/uv-pre-commit
-    rev: 0.9.3
+    rev: 0.11.3
     hooks:
       - id: uv-lock
   - repo: https://github.com/commitizen-tools/commitizen

lib/crewai/src/crewai/crew.py

@@ -1298,6 +1298,8 @@ class Crew(FlowTrackable, BaseModel):
         manager.crew = self
 
     def _get_execution_start_index(self, tasks: list[Task]) -> int | None:
+        if self.checkpoint_kickoff_event_id is None:
+            return None
         for i, task in enumerate(tasks):
             if task.output is None:
                 return i if i > 0 else None

lib/crewai/src/crewai/crews/utils.py

@@ -284,7 +284,7 @@ def prepare_kickoff(
     )
     from crewai.events.types.crew_events import CrewKickoffStartedEvent
 
-    resuming = crew._kickoff_event_id is not None
+    resuming = crew.checkpoint_kickoff_event_id is not None
 
     if not resuming and get_current_parent_id() is None:
         reset_emission_counter()