refactor: remove unnecessary type: async_workflow_service.py

[kongdayan]

Summary

Remove the unnecessary # type: ignore comment from the api/services/async_workflow_service.py.

This is a partial fix for #24494, following the pattern established in #24649.

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 make lint and make type-check (backend) and cd web && npx lint-staged (frontend) to appease the lint gods

[gemini-code-assist]

Summary of Changes

Hello @kongdayan, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves code quality and maintainability by eliminating redundant type ignore comments. This change enables the static type checker to perform more thorough validation, contributing to a more robust and error-resistant codebase.

Highlights

• Type Hinting Cleanup: Removed unnecessary # type: ignore comments from the trigger_workflow_async function in api/services/async_workflow_service.py, allowing for stricter type checking.

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Changelog

• api/services/async_workflow_service.py
  • Removed # type: ignore comments from calls to execute_workflow_professional.delay, execute_workflow_team.delay, execute_workflow_sandbox.delay, and the access of task.id within the trigger_workflow_async function.

Activity

• The pull request was created by kongdayan as a partial fix for issue [Chore/Refactor] clean some # type: ignore #24494, following the pattern set by PR example try rm ignore #24649.
• The author has completed the checklist, including adding tests, updating documentation, and running linting and type-checking.

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[gemini-code-assist]

Code Review

This pull request removes several unnecessary # type: ignore comments, which is a good cleanup. The logic is sound. I've added one suggestion to refactor the task dispatching logic using a dictionary mapping. This would make the code more declarative, easier to maintain, and further improve type safety by ensuring the task variable is correctly inferred as non-nullable by static analysis tools.