feat: Add support for review of local changes

[nimrodkor]

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Below is a concise technical summary of the changes proposed in this PR:
Enable local diff reviews by wiring ReviewFlow to new LocalDiffPrompt and LocalPullRequestReview, which now feed diffs into PRChat via CheckoutChatRequest overrides and the --local CLI flag to bootstrap the experience. Document local-mode defaults while surfacing git metadata through lib/git so the selector UI can show change summaries and drive the local-review entry point.

Topic	Details
Git info surface	Expose git command helpers and change summaries (plus .env defaults) so the selector UI can depict unstaged/staged changes, offer the local-review slot, and keep PullRequestSelectorContainer aware of git state before handing control to the new flow. Modified files (4) .env.example src/lib/git.ts src/pages/PRSelector/PullRequestSelector.tsx src/pages/PRSelector/PullRequestSelectorContainer.tsx Latest Contributors(2) User Commit Date yuvalyacoby feat: Ready to merge (... December 28, 2025 anton.gruebel@gmail.com feat: add include and ... December 18, 2025
Local review flow	Orchestrate the local-review experience by introducing LocalDiffPrompt, LocalPullRequestReview, and the new CLI flag to prime ReviewFlow; feed diffs into PRChat (with overrides defined in models/chat) and signal completion/back-navigation through the existing menu flow so local changes can be reviewed just like a PR. Modified files (6) src/flows/LocalReview/LocalDiffPrompt.tsx src/flows/LocalReview/LocalPullRequestReview.tsx src/flows/Review/Review.tsx src/index.ts src/models/chat.ts src/pages/PRChat/PRChat.tsx Latest Contributors(2) User Commit Date nimrod@baz.co chore: Use PR consiste... December 11, 2025 yuvalyacoby feat: Full pr data imp... December 09, 2025

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