Add a new section named development in issue view sidebar to interact with branch/pr

[lunny]

Partially Resolve #20226

This PR add a new section on the sidebar of issue named Development. It supports creating one or multiple branches and pull requests from the sidebar.

1. No related branch or PR
   

2. Create new branch from the issue

3. Related branch created

4. Prefill title and content when creating pull request from the issue development link
   

5. Realted PR created
   

6. Related PR merged
   

7. Mayge fixed near the issue title
   

TODO:

• Delete dev_link records from the database when deleting repos/issues
• Delete dev_link records from the database when deleting pull requests/branch
• Allow creating multiple branches/pull requests from UI
• Bring issue information into the pull request when creating the pull request.
• Adjust the toast z-index to 9999 so that it will display in front of the modal.

[yp05327]

This section should be hidden or disabled when repo is empty or repo is archive or repo is mirror.

[lunny]

This section should be hidden or disabled when repo is empty or repo is archive or repo is mirror.

The links are still useable. Only create branch link should be hide.

[wxiaoguang]

Just tried to play with GitHub's development sidebar for a while. I can see there could be a lot of edge cases:

1. create a new branch 123-my-issue, rename the branch to 123-my-issue-other, the link disappears, rename another branch to 123-my-issue, the link won't appear again.
2. create a new branch 123-my-issue, create a PR from 123-my-issue, then the link is updated to PR, the branch link is replaced.

I believe these details need enough documents(comments) and tests.

[wxiaoguang]

I guess it won't catch 1.23 milestone since this PR doesn't seem to be complete enough.

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LinkIndex: I also agree it doesn't seem to be a good name or proper design. There are already too many "index" in code: search index, database index, issue index, etc.

And using "string" to store "int" in database would cause problems, if you write ("where str_field = ?", intVal), then it can't use the index and would cause imperceptible performance problems.

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Just tried to play with GitHub's development sidebar for a while. I can see there could be a lot of edge cases:

1. create a new branch 123-my-issue, rename the branch to 123-my-issue-other, the link disappears, rename another branch to 123-my-issue, the link won't appear again.
2. create a new branch 123-my-issue, create a PR from 123-my-issue, then the link is updated to PR, the branch link is replaced.

I believe these details need enough documents(comments) and tests.

[KemptonM]

Progress on this? We are using Gitea at work and I would love to have this feature

[lunny]

I think I need to migrate the current ref column in the issue table.

[krokets]

Hi, still plan for 1.24.0 ?

[lunny]

Hi, still plan for 1.24.0 ?

Yes.