[WIP] Add support for Auto Edits in JetBrains

[mkondratek]

Based on PR #7311

Chain of upstream PRs as of 2025-03-08

• PR feat(autoedit): Enable Agent support WIP #7311:
  main ← tr/autoedit-agent-support

  • PR [WIP] Add support for Auto Edits in JetBrains #7373 (THIS ONE):
    tr/autoedit-agent-support ← mkondratek/feat/jb/auto-edits

Test plan

[umpox]

@mkondratek We also require a setting to enable this feature. This is because the flow for users with autoedit right now is:

1. The feature flag is enabled
2. They see a notification saying something like "Hey, try our new feature!"\
3. When they action this notification, the setting is updated.

You can see the setting requirement here https://github.com/sourcegraph/cody/pull/7311/files#diff-49d17fc51213230e74a1a643b69e0fc873cd55e3df157b7ac5ab9dcca571e95bR656

Unsure how we normally handle these settings in JB so let's discuss

[mkondratek]

@mkondratek We also require a setting to enable this feature. This is because the flow for users with autoedit right now is:

1. The feature flag is enabled
2. They see a notification saying something like "Hey, try our new feature!"\
3. When they action this notification, the setting is updated.

You can see the setting requirement here https://github.com/sourcegraph/cody/pull/7311/files#diff-49d17fc51213230e74a1a643b69e0fc873cd55e3df157b7ac5ab9dcca571e95bR656

Unsure how we normally handle these settings in JB so let's discuss

There is cody_settings.jsonto set those. With:

  "cody.suggestions.mode": "auto-edit (Experimental)",

I was able to move a step forward. Thanks!