refactor(web): migrate console contracts to generated routes

[hyoban]

Summary

Fixes #38232.

This PR migrates the console contract paths that are now covered by generated OpenAPI contracts:

• removes handwritten console contracts for billing, files, workflowDraft, and workflowComments
• updates billing and workflow comment callers to use generated route names and path params
• strengthens backend OpenAPI schemas needed by the generated contracts, including file upload bodies, billing invoices, workflow draft payloads, trigger/RBAC/plugin response shapes, and workflow comment mention user avatars
• refreshes generated console contract artifacts and OpenAPI markdown

Screenshots

Before	After
N/A	N/A

Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran scoped backend/frontend checks listed below.

Validation

• uv run --project api ruff check api/controllers/console/app/workflow.py api/controllers/console/app/workflow_comment.py api/controllers/console/app/workflow_draft_variable.py api/controllers/console/billing/billing.py api/controllers/console/explore/recommended_app.py api/controllers/console/files.py api/controllers/console/workspace/members.py api/controllers/console/workspace/plugin.py api/controllers/console/workspace/rbac.py api/controllers/console/workspace/trigger_providers.py api/tests/unit_tests/commands/test_generate_swagger_specs.py
• uv run --project api pytest api/tests/unit_tests/commands/test_generate_swagger_specs.py -q
• pnpm --dir packages/contracts type-check
• pnpm --dir web type-check
• pnpm --dir web test app/components/workflow/hooks/__tests__/use-workflow-comment.spec.ts app/components/workflow/comment/mention-input.spec.tsx app/components/workflow/comment/thread.spec.tsx app/components/workflow/comment/comment-icon.spec.tsx app/components/workflow/comment/comment-preview.spec.tsx app/components/workflow/panel/comments-panel/__tests__/index.spec.tsx __tests__/billing/pricing-modal-flow.test.tsx __tests__/billing/cloud-plan-payment-flow.test.tsx app/components/billing/pricing/plans/cloud-plan-item/__tests__/index.spec.tsx

From Codex

[github-actions]

Pyrefly Type Coverage

Metric	Base	PR	Delta
Type coverage	51.86%	51.86%	-0.00%
Strict coverage	51.38%	51.38%	-0.00%
Typed symbols	31,527	31,527	0
Untyped symbols	29,535	29,537	+2
Modules	2952	2952	0

[codecov]

Codecov Report

❌ Patch coverage is 95.03106% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.36%. Comparing base (0923eba) to head (43a40c0).

Files with missing lines	Patch %	Lines
web/service/workflow.ts	0.00%	3 Missing ⚠️
...controllers/console/app/workflow_draft_variable.py	87.50%	2 Missing ⚠️
.../components/workflow/hooks/use-workflow-comment.ts	87.50%	2 Missing ⚠️
api/controllers/console/app/workflow.py	97.82%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #38233    +/-   ##
========================================
  Coverage   85.35%   85.36%            
========================================
  Files        4979     4979            
  Lines      261925   262037   +112     
  Branches    49623    49629     +6     
========================================
+ Hits       223567   223681   +114     
+ Misses      33974    33972     -2     
  Partials     4384     4384            

Flag	Coverage Δ
api	85.49% <97.79%> (+0.01%)	⬆️
dify-ui	94.93% <ø> (ø)
web	85.07% <80.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[hyoban]

@copilot resolve the merge conflicts in this pull request

[Copilot]

@copilot resolve the merge conflicts in this pull request

Resolved and pushed. Merge conflicts are fixed in commit 6ba56eb.