feat: add CodeRabbit integration for AI-powered code reviews

This commit introduces the CodeRabbit service and its associated routes, enabling users to trigger, manage, and check the status of code reviews through a new API. Key features include:

- New routes for triggering code reviews, checking status, and stopping reviews.
- Integration with the CodeRabbit CLI for authentication and status checks.
- UI components for displaying code review results and settings management.
- Unit tests for the new code review functionality to ensure reliability.

This enhancement aims to streamline the code review process and leverage AI capabilities for improved code quality.

libs/types/src/code-review.ts

@@ -0,0 +1,184 @@
+/**
+ * Code Review Types
+ *
+ * Types for code review functionality in AutoMaker.
+ * Used for automated code review results and comments.
+ */
+
+import type { ModelId } from './model.js';
+
+/**
+ * Severity level of a code review comment
+ */
+export type CodeReviewSeverity = 'critical' | 'high' | 'medium' | 'low' | 'info';
+
+/**
+ * Category of code review finding
+ */
+export type CodeReviewCategory =
+  | 'tech_stack'
+  | 'security'
+  | 'code_quality'
+  | 'implementation'
+  | 'architecture'
+  | 'performance'
+  | 'testing'
+  | 'documentation';
+
+/**
+ * Overall verdict of a code review
+ */
+export type CodeReviewVerdict = 'approved' | 'changes_requested' | 'needs_discussion';
+
+/**
+ * A single comment in a code review
+ */
+export interface CodeReviewComment {
+  /** Unique identifier for the comment */
+  id: string;
+  /** File path relative to project root */
+  filePath: string;
+  /** Starting line number (1-based) */
+  startLine: number;
+  /** Ending line number (1-based), same as startLine for single-line comments */
+  endLine: number;
+  /** The comment text/feedback */
+  body: string;
+  /** Severity level of the issue */
+  severity: CodeReviewSeverity;
+  /** Category of the finding */
+  category: CodeReviewCategory;
+  /** Suggested fix or improvement (if applicable) */
+  suggestedFix?: string;
+  /** Code snippet showing the suggested change */
+  suggestedCode?: string;
+  /** Whether this issue was auto-fixed */
+  autoFixed?: boolean;
+  /** ISO timestamp when the comment was created */
+  createdAt: string;
+}
+
+/**
+ * Summary statistics for a code review
+ */
+export interface CodeReviewSummary {
+  /** Total number of comments */
+  totalComments: number;
+  /** Count by severity */
+  bySeverity: Record<CodeReviewSeverity, number>;
+  /** Count by category */
+  byCategory: Record<CodeReviewCategory, number>;
+  /** Number of issues that were auto-fixed */
+  autoFixedCount: number;
+}
+
+/**
+ * Result of a code review analysis
+ */
+export interface CodeReviewResult {
+  /** Unique identifier for this review */
+  id: string;
+  /** Overall verdict of the review */
+  verdict: CodeReviewVerdict;
+  /** Summary of the review findings */
+  summary: string;
+  /** Detailed review comments */
+  comments: CodeReviewComment[];
+  /** Aggregated statistics */
+  stats: CodeReviewSummary;
+  /** Files that were reviewed */
+  filesReviewed: string[];
+  /** Model used for the review */
+  model: ModelId;
+  /** ISO timestamp when the review was performed */
+  reviewedAt: string;
+  /** Git commit SHA or branch that was reviewed (if applicable) */
+  gitRef?: string;
+  /** Duration of the review in milliseconds */
+  durationMs?: number;
+}
+
+/**
+ * Request payload for code review endpoint
+ */
+export interface CodeReviewRequest {
+  /** Project path to review */
+  projectPath: string;
+  /** Specific files to review (if empty, reviews git diff) */
+  files?: string[];
+  /** Git ref to compare against (default: HEAD) */
+  baseRef?: string;
+  /** Categories to focus on (if empty, reviews all categories) */
+  categories?: CodeReviewCategory[];
+  /** Whether to attempt auto-fixes for issues found */
+  autoFix?: boolean;
+}
+
+/**
+ * Successful response from code review endpoint
+ */
+export interface CodeReviewResponse {
+  success: true;
+  review: CodeReviewResult;
+}
+
+/**
+ * Error response from code review endpoint
+ */
+export interface CodeReviewErrorResponse {
+  success: false;
+  error: string;
+}
+
+/**
+ * Events emitted during async code review
+ */
+export type CodeReviewEvent =
+  | {
+      type: 'code_review_start';
+      projectPath: string;
+      filesCount: number;
+    }
+  | {
+      type: 'code_review_progress';
+      projectPath: string;
+      currentFile: string;
+      filesCompleted: number;
+      filesTotal: number;
+      content?: string;
+    }
+  | {
+      type: 'code_review_comment';
+      projectPath: string;
+      comment: CodeReviewComment;
+    }
+  | {
+      type: 'code_review_complete';
+      projectPath: string;
+      result: CodeReviewResult;
+    }
+  | {
+      type: 'code_review_error';
+      projectPath: string;
+      error: string;
+    };
+
+/**
+ * Stored code review data with metadata for cache
+ */
+export interface StoredCodeReview {
+  /** Unique identifier */
+  id: string;
+  /** Project path that was reviewed */
+  projectPath: string;
+  /** Git ref that was reviewed */
+  gitRef?: string;
+  /** ISO timestamp when review was performed */
+  reviewedAt: string;
+  /** Model used for review */
+  model: ModelId;
+  /** The review result */
+  result: CodeReviewResult;
+  /** ISO timestamp when user viewed this review (undefined = not yet viewed) */
+  viewedAt?: string;
+}

libs/types/src/event.ts

@@ -47,6 +47,7 @@ export type EventType =
   | 'dev-server:started'
   | 'dev-server:output'
   | 'dev-server:stopped'
-  | 'notification:created';
+  | 'notification:created'
+  | 'code_review:event';
 
 export type EventCallback = (type: EventType, payload: unknown) => void;

libs/types/src/index.ts

@@ -296,3 +296,18 @@ export { EVENT_HISTORY_VERSION, DEFAULT_EVENT_HISTORY_INDEX } from './event-hist
 // Worktree and PR types
 export type { PRState, WorktreePRInfo } from './worktree.js';
 export { PR_STATES, validatePRState } from './worktree.js';
+
+// Code review types
+export type {
+  CodeReviewSeverity,
+  CodeReviewCategory,
+  CodeReviewVerdict,
+  CodeReviewComment,
+  CodeReviewSummary,
+  CodeReviewResult,
+  CodeReviewRequest,
+  CodeReviewResponse,
+  CodeReviewErrorResponse,
+  CodeReviewEvent,
+  StoredCodeReview,
+} from './code-review.js';

libs/types/src/settings.ts

@@ -669,6 +669,8 @@ export interface Credentials {
     google: string;
     /** OpenAI API key (for compatibility or alternative providers) */
     openai: string;
+    /** CodeRabbit API key (for AI-powered code reviews) */
+    coderabbit: string;
   };
 }
 
@@ -905,6 +907,7 @@ export const DEFAULT_CREDENTIALS: Credentials = {
     anthropic: '',
     google: '',
     openai: '',
+    coderabbit: '',
   },
 };