## Summary
Completes the workflow persistence overhaul by integrating the new draft
system into the app and migrating existing data. Fixes two critical
bugs:
1. **QuotaExceededError** - localStorage fills up with workflow drafts,
breaking auto-save
2. **Cross-workspace data leakage** - Drafts from one ComfyUI instance
appear in another
## Changes
- **What**:
- `useWorkflowPersistenceV2.ts` - Main composable that hooks into graph
changes with 512ms debounce
- `migrateV1toV2.ts` - One-time migration of existing drafts to the new
scoped format
- Updated E2E tests for new storage key patterns
- **Why**: Users lose work when storage quota is exceeded, and see
confusing workflows from other instances
## How It Works
- **Workspace scoping**: Each ComfyUI instance (identified by server
URL) has isolated draft storage
- **LRU eviction**: When storage is full, oldest drafts are
automatically removed (keeps 32 most recent)
- **Tab isolation**: Each browser tab tracks its own active/open
workflows via sessionStorage
- **Debounced saves**: Graph changes are batched with 512ms delay to
reduce storage writes
## Migration
Existing V1 drafts are automatically migrated on first load. The
migration:
1. Reads drafts from old `Comfy.Workflow.*` keys
2. Converts to new workspace-scoped format
3. Cleans up old keys after successful migration
---
*Part 4 of 4 in the workflow persistence improvements stack*
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Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Simula_r <18093452+simula-r@users.noreply.github.com>
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