Summary

Follow-up improvements for the visual workflow editor (#247, PR #1018). Consolidates #1007, #1009, #1010, #1011 into this single tracking issue.

Items

1. Workflow list/management page

The editor currently auto-creates a single workflow on first visit. Add a /workflows list page with:

• Table/card view of all saved workflow definitions
• Create new, duplicate, delete actions
• Click to open in editor (/workflows/editor?id=...)
• Filter by workflow type

2. Bidirectional YAML editing

The YAML preview panel is currently read-only. Allow users to edit YAML directly and have changes reflected on the canvas:

• Toggle between visual editor and YAML editor modes
• Parse YAML changes back into nodes/edges (YAML import -- formerly feat: YAML import for workflow definitions #1009)
• Validate on parse, show inline errors for invalid YAML
• Preserve node positions when round-tripping through YAML

3. Multi-workflow support in editor

• Workflow selector/dropdown in the editor toolbar
• Quick-switch between workflows without navigating away
• "Save as new" / duplicate workflow action

4. Structured conditional expression builder (formerly #1007)

Replace free-text conditions on workflow conditional edges with a structured expression builder:

• Field comparisons (e.g., task.status == 'completed')
• Status checks, logical operators (AND/OR/NOT), nested groups
• Visual UI that produces structured expressions
• Advanced free-text fallback mode

5. Minimap for large workflows (formerly #1010)

Add the @xyflow/react MiniMap control to the canvas for overview navigation in large workflows.

6. Copy/paste node groups (formerly #1011)

Select multiple nodes and duplicate them as a group, preserving internal edge connections. Speeds up building workflows with repetitive patterns.

Dependencies

• Requires visual workflow editor (PR feat: implement visual workflow editor (#247) #1018) -- MERGED