Move workflow_graph.py from data to workflow folder and update imports

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

DATA_TO_WORKFLOW_MIGRATION.md

@@ -110,7 +110,7 @@ Only essentials that don't affect the core architecture:
 
 - `__init__.py` - Thin wrapper for backward compatibility (delegates to plugins)
 - ~~`run_state.py` - Bot execution state (could be pluginized in future)~~ **✅ MIGRATED** → `control.start_bot`, `control.get_bot_status`, `control.reset_bot_state` plugins
-- `workflow_graph.py` - Workflow visualization (could be pluginized in future)
+- ~~`workflow_graph.py` - Workflow visualization (could be pluginized in future)~~ **✅ MOVED** → `workflow/workflow_graph.py`
 - `navigation_items.json` - Static navigation data
 - `ui_assets.json` - Static UI assets
 

backend/autometabuilder/workflow/plugins/web/web_route_navigation/web_route_navigation.py

@@ -1,7 +1,7 @@
 """Workflow plugin: navigation API routes blueprint."""
 from flask import Blueprint, jsonify
 from autometabuilder.loaders.metadata_loader import load_metadata
-from autometabuilder.data.workflow_graph import build_workflow_graph
+from autometabuilder.workflow.workflow_graph import build_workflow_graph
 
 
 def run(runtime, _inputs):

backend/tests/test_workflow_graph.py

@@ -1,4 +1,4 @@
-from autometabuilder.data.workflow_graph import build_workflow_graph
+from autometabuilder.workflow.workflow_graph import build_workflow_graph
 
 
 def test_build_workflow_graph_structure():