refactor(api): rename dify_graph to graphon (#34095)

api/graphon/entities/graph_init_params.py

@@ -0,0 +1,24 @@
+from collections.abc import Mapping
+from typing import Any
+
+from pydantic import BaseModel, Field
+
+DIFY_RUN_CONTEXT_KEY = "_dify"
+
+
+class GraphInitParams(BaseModel):
+    """GraphInitParams encapsulates the configurations and contextual information
+    that remain constant throughout a single execution of the graph engine.
+
+    A single execution is defined as follows: as long as the execution has not reached
+    its conclusion, it is considered one execution. For instance, if a workflow is suspended
+    and later resumed, it is still regarded as a single execution, not two.
+
+    For the state diagram of workflow execution, refer to `WorkflowExecutionStatus`.
+    """
+
+    # init params
+    workflow_id: str = Field(..., description="workflow id")
+    graph_config: Mapping[str, Any] = Field(..., description="graph config")
+    run_context: Mapping[str, Any] = Field(..., description="runtime context")
+    call_depth: int = Field(..., description="call depth")