[feat] Add bulk import failure info API endpoint

[viva-jinyi]

Summary

Add bulk API endpoint for import failure information to reduce API calls from N to 1 for performance optimization.

Changes

• New endpoint: /v2/customnode/import_fail_info_bulk
• Added to both: glob and legacy manager servers for compatibility
• Input validation: Supports cnr_ids and/or urls arrays
• Error handling: Maintains same pattern as original import_fail_info API
• Performance: Reduces potential 100+ API calls to single bulk request

API Details

POST /v2/customnode/import_fail_info_bulk
{
  "cnr_ids": ["package1", "package2", ...],
  "urls": ["https://github.com/...", ...]
}

Returns object with package IDs/URLs as keys and import failure info as values.

Test plan

• Verify bulk API processes multiple cnr_ids correctly
• Test with intentionally broken custom nodes to generate import failures
• Confirm both legacy and current manager versions work
• Validate error handling for invalid inputs

🤖 Generated with Claude Code

[christian-byrne]

After merging, we will need to follow this process:

On ComfyUI-Manager>main:

1. Update https://github.com/Comfy-Org/ComfyUI-Manager/blob/main/openapi.yaml with the new path. Add the return type to the components section and the route to the paths section

On ComfyUI-Manager>draft-v4:

2. Rebase draft-v4 onto main to get the updated openapi in draft-v4
3. Re-generate the data models following the process described here: https://github.com/Comfy-Org/ComfyUI-Manager/blob/draft-v4/comfyui_manager/data_models/README.md.
4. Update the route handler to use the new data models for request/response validation, similar to other v2 routes

On ComfyUI_frontend:

6. Trigger this action manually to update the ComfyUI-Manager types https://github.com/Comfy-Org/ComfyUI_frontend/actions/workflows/update-manager-types.yaml. Important: in the dropdown, select manager/compatibility as the target branch
7. Approve and merge the PR that is automatically made
8. Update the getImportFailInfoBulk function in comfyManagerService.ts to use the generated types.

Context: the openapi yaml is the source of truth for the types of data going back and forth between frontend client and ComfyUI-Manager server. We only need to change that then both the server and client generate the types both, ensuring type consistency is always maintained.

[christian-byrne]

After generating the data models, we can use the Pydantic built-in validation 👍