fix: type errors

Signed-off-by: -LAN- <laipz8200@outlook.com>

api/core/workflow/entities/agent.py

@@ -1,5 +1,3 @@
-from typing import Optional
-
 from pydantic import BaseModel
 
 
@@ -7,4 +5,4 @@ class AgentNodeStrategyInit(BaseModel):
     """Agent node strategy initialization data."""
 
     name: str
-    icon: Optional[str] = None
+    icon: str | None = None

api/core/workflow/entities/run_condition.py

@@ -1,5 +1,5 @@
 import hashlib
-from typing import Literal, Optional
+from typing import Literal
 
 from pydantic import BaseModel
 
@@ -10,10 +10,10 @@ class RunCondition(BaseModel):
     type: Literal["branch_identify", "condition"]
     """condition type"""
 
-    branch_identify: Optional[str] = None
+    branch_identify: str | None = None
     """branch identify like: sourceHandle, required when type is branch_identify"""
 
-    conditions: Optional[list[Condition]] = None
+    conditions: list[Condition] | None = None
     """conditions to run the node, required when type is condition"""
 
     @property

api/core/workflow/entities/workflow_execution.py

@@ -7,7 +7,7 @@ implementation details like tenant_id, app_id, etc.
 
 from collections.abc import Mapping
 from datetime import datetime
-from typing import Any, Optional
+from typing import Any
 
 from pydantic import BaseModel, Field
 
@@ -28,7 +28,7 @@ class WorkflowExecution(BaseModel):
     graph: Mapping[str, Any] = Field(...)
 
     inputs: Mapping[str, Any] = Field(...)
-    outputs: Optional[Mapping[str, Any]] = None
+    outputs: Mapping[str, Any] | None = None
 
     status: WorkflowExecutionStatus = WorkflowExecutionStatus.RUNNING
     error_message: str = Field(default="")
@@ -37,7 +37,7 @@ class WorkflowExecution(BaseModel):
     exceptions_count: int = Field(default=0)
 
     started_at: datetime = Field(...)
-    finished_at: Optional[datetime] = None
+    finished_at: datetime | None = None
 
     @property
     def elapsed_time(self) -> float:

api/core/workflow/entities/workflow_node_execution.py

@@ -8,7 +8,7 @@ and don't contain implementation details like tenant_id, app_id, etc.
 
 from collections.abc import Mapping
 from datetime import datetime
-from typing import Any, Optional
+from typing import Any
 
 from pydantic import BaseModel, Field
 
@@ -39,41 +39,41 @@ class WorkflowNodeExecution(BaseModel):
     # NOTE: For referencing the persisted record, use `id` rather than `node_execution_id`.
     # While `node_execution_id` may sometimes be a UUID string, this is not guaranteed.
     # In most scenarios, `id` should be used as the primary identifier.
-    node_execution_id: Optional[str] = None
+    node_execution_id: str | None = None
     workflow_id: str  # ID of the workflow this node belongs to
-    workflow_execution_id: Optional[str] = None  # ID of the specific workflow run (null for single-step debugging)
+    workflow_execution_id: str | None = None  # ID of the specific workflow run (null for single-step debugging)
     # --------- Core identification fields ends ---------
 
     # Execution positioning and flow
     index: int  # Sequence number for ordering in trace visualization
-    predecessor_node_id: Optional[str] = None  # ID of the node that executed before this one
+    predecessor_node_id: str | None = None  # ID of the node that executed before this one
     node_id: str  # ID of the node being executed
     node_type: NodeType  # Type of node (e.g., start, llm, knowledge)
     title: str  # Display title of the node
 
     # Execution data
-    inputs: Optional[Mapping[str, Any]] = None  # Input variables used by this node
-    process_data: Optional[Mapping[str, Any]] = None  # Intermediate processing data
-    outputs: Optional[Mapping[str, Any]] = None  # Output variables produced by this node
+    inputs: Mapping[str, Any] | None = None  # Input variables used by this node
+    process_data: Mapping[str, Any] | None = None  # Intermediate processing data
+    outputs: Mapping[str, Any] | None = None  # Output variables produced by this node
 
     # Execution state
     status: WorkflowNodeExecutionStatus = WorkflowNodeExecutionStatus.RUNNING  # Current execution status
-    error: Optional[str] = None  # Error message if execution failed
+    error: str | None = None  # Error message if execution failed
     elapsed_time: float = Field(default=0.0)  # Time taken for execution in seconds
 
     # Additional metadata
-    metadata: Optional[Mapping[WorkflowNodeExecutionMetadataKey, Any]] = None  # Execution metadata (tokens, cost, etc.)
+    metadata: Mapping[WorkflowNodeExecutionMetadataKey, Any] | None = None  # Execution metadata (tokens, cost, etc.)
 
     # Timing information
     created_at: datetime  # When execution started
-    finished_at: Optional[datetime] = None  # When execution completed
+    finished_at: datetime | None = None  # When execution completed
 
     def update_from_mapping(
         self,
-        inputs: Optional[Mapping[str, Any]] = None,
-        process_data: Optional[Mapping[str, Any]] = None,
-        outputs: Optional[Mapping[str, Any]] = None,
-        metadata: Optional[Mapping[WorkflowNodeExecutionMetadataKey, Any]] = None,
+        inputs: Mapping[str, Any] | None = None,
+        process_data: Mapping[str, Any] | None = None,
+        outputs: Mapping[str, Any] | None = None,
+        metadata: Mapping[WorkflowNodeExecutionMetadataKey, Any] | None = None,
     ):
         """
         Update the model from mappings.