Frontend Fixes:
- AdminPromptsPage: Edit button navigates to workflow-editor for workflow type prompts
- WorkflowEditorPage: Fixed save navigation (alert before navigate)
- WorkflowEditorPage: selectedNode derived from selectedNodeId (eliminates stale state)
- FallbackConfig: Show node labels instead of IDs in fallback edge dropdown
- WorkflowCanvas: Enable edge deletion with deletable: true
- WorkflowEditorPage: Hide sidebar when config panel is open
Bugs Fixed:
- C1: Save error "Method Not Allowed" after success
- C2: Edit button in admin doesn't open workflow editor
- H1: Prompt selection not displayed when re-editing node
- H2: Fallback edge dropdown shows node_1/node_2 instead of names
- H3: Cannot delete edges
- M1: Sidebar takes space when config panel open
Technical Changes:
- Replaced useState(selectedNode) with useState(selectedNodeId) + derived selectedNode
- Removed sync useEffect (no longer needed with derived state)
- Added nodes prop to FallbackConfig for label lookup
- Swapped alert/navigate order to prevent navigation errors
Testing: Manual testing required (see manual test cases)