refactor: extract auto-mode-service into modular services

Reduce auto-mode-service.ts from 1308 to 516 lines (60% reduction) by
extracting reusable functionality into shared packages and services:

- Add feature prompt builders to @automaker/prompts (buildFeaturePrompt,
  buildFollowUpPrompt, buildContinuationPrompt, extractTitleFromDescription)
- Add planning prompts and task parsing to @automaker/prompts
- Add stream processor utilities to @automaker/utils (sleep, processStream)
- Add git commit utilities to @automaker/git-utils (commitAll, hasUncommittedChanges)
- Create ProjectAnalyzer service for project analysis
- Create FeatureVerificationService for verify/commit operations
- Extend FeatureLoader with updateStatus, updatePlanSpec, getPending methods
- Expand FeatureStatus type to include all used statuses
- Add PlanSpec and ParsedTask types to @automaker/types

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

libs/git-utils/src/commit.ts

@@ -0,0 +1,112 @@
+/**
+ * Git Commit Utilities - Commit operations for git repositories
+ *
+ * Provides utilities for staging and committing changes.
+ */
+
+import { exec } from 'child_process';
+import { promisify } from 'util';
+
+const execAsync = promisify(exec);
+
+/**
+ * Check if there are uncommitted changes in the working directory
+ *
+ * @param workDir - The working directory to check
+ * @returns True if there are uncommitted changes
+ */
+export async function hasUncommittedChanges(workDir: string): Promise<boolean> {
+  try {
+    const { stdout } = await execAsync('git status --porcelain', { cwd: workDir });
+    return stdout.trim().length > 0;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Stage all changes and commit with a message
+ *
+ * @param workDir - The working directory
+ * @param message - The commit message
+ * @returns The commit hash if successful, null otherwise
+ */
+export async function commitAll(workDir: string, message: string): Promise<string | null> {
+  try {
+    // Check for changes first
+    const hasChanges = await hasUncommittedChanges(workDir);
+    if (!hasChanges) {
+      return null;
+    }
+
+    // Stage all changes
+    await execAsync('git add -A', { cwd: workDir });
+
+    // Commit with message (escape double quotes)
+    const escapedMessage = message.replace(/"/g, '\\"');
+    await execAsync(`git commit -m "${escapedMessage}"`, { cwd: workDir });
+
+    // Get the commit hash
+    const { stdout } = await execAsync('git rev-parse HEAD', { cwd: workDir });
+    return stdout.trim();
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * Get the current HEAD commit hash
+ *
+ * @param workDir - The working directory
+ * @returns The commit hash or null if not a git repo
+ */
+export async function getHeadHash(workDir: string): Promise<string | null> {
+  try {
+    const { stdout } = await execAsync('git rev-parse HEAD', { cwd: workDir });
+    return stdout.trim();
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * Get the short version of a commit hash
+ *
+ * @param hash - The full commit hash
+ * @param length - Length of short hash (default 8)
+ * @returns The shortened hash
+ */
+export function shortHash(hash: string, length = 8): string {
+  return hash.substring(0, length);
+}
+
+/**
+ * Run verification commands (lint, typecheck, test, build)
+ *
+ * @param workDir - The working directory
+ * @param checks - Optional custom checks (defaults to npm scripts)
+ * @returns Object with success status and failed check name if any
+ */
+export async function runVerificationChecks(
+  workDir: string,
+  checks?: Array<{ cmd: string; name: string }>
+): Promise<{ success: boolean; failedCheck?: string }> {
+  const defaultChecks = [
+    { cmd: 'npm run lint', name: 'Lint' },
+    { cmd: 'npm run typecheck', name: 'Type check' },
+    { cmd: 'npm test', name: 'Tests' },
+    { cmd: 'npm run build', name: 'Build' },
+  ];
+
+  const checksToRun = checks || defaultChecks;
+
+  for (const check of checksToRun) {
+    try {
+      await execAsync(check.cmd, { cwd: workDir, timeout: 120000 });
+    } catch {
+      return { success: false, failedCheck: check.name };
+    }
+  }
+
+  return { success: true };
+}

libs/git-utils/src/index.ts

@@ -17,3 +17,12 @@ export {
   generateDiffsForNonGitDirectory,
   getGitRepositoryDiffs,
 } from './diff.js';
+
+// Export commit utilities
+export {
+  hasUncommittedChanges,
+  commitAll,
+  getHeadHash,
+  shortHash,
+  runVerificationChecks,
+} from './commit.js';