Feat/tui full file diff fixed

[liangxiao777]

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How did you verify your code works?

[github-actions]

Hey! Your PR title Feat/tui full file diff fixed doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Potential Duplicate PRs Found:

1. PR feat(opencode): add full-file diff toggle in TUI permission view #9357: feat(opencode): add full-file diff toggle in TUI permission view

   • feat(opencode): add full-file diff toggle in TUI permission view #9357
   • Reason: Directly related to full-file diff functionality in the TUI, likely addressing the same feature

2. PR feat(tui): add minimal diff display mode #9104: feat(tui): add minimal diff display mode

   • feat(tui): add minimal diff display mode #9104
   • Reason: Related TUI diff display functionality that may overlap with this PR's scope

These PRs appear to be closely related to your TUI full file diff work. PR #9357 in particular seems to be directly addressing the same feature area.