fix(phase-2): resolve lint warnings in Phase 2 code

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: maystudios

packages/cli/src/commands/github.ts

@@ -1204,7 +1204,7 @@ export const GITHUB_COMMANDS: CommandRegistry = {
       }
 
       if (maxsimCommentTimestamps.length > 0) {
-        const lastMaxsimComment = maxsimCommentTimestamps.sort().pop()!;
+        const lastMaxsimComment = maxsimCommentTimestamps.sort().pop() ?? '';
         if (issue.updatedAt > lastMaxsimComment) {
           report.bodyEdits.push({
             issueUpdatedAt: issue.updatedAt,

packages/cli/tests/unit/github-commands-phase2.test.ts

@@ -474,7 +474,7 @@ describe('handle-verification-success handler', () => {
 
 describe('status handler argument validation', () => {
   it('returns error when --phase-number is not a valid integer', async () => {
-    const result = await GITHUB_COMMANDS['status'].handler(['--phase-number', 'abc']);
+    const result = await GITHUB_COMMANDS.status.handler(['--phase-number', 'abc']);
 
     expect(result.ok).toBe(false);
     if (result.ok) throw new Error('Expected ok:false');

packages/cli/tests/unit/github-labels-new.test.ts

@@ -56,8 +56,8 @@ describe('MAXSIM_LABELS includes verification:failed', () => {
   it('verification:failed has a non-empty description and valid color', () => {
     const found = MAXSIM_LABELS.find((l) => l.name === 'verification:failed');
     expect(found).toBeDefined();
-    expect(found!.description.length).toBeGreaterThan(0);
-    expect(found!.color).toMatch(/^[0-9a-f]{6}$/i);
+    expect(found?.description.length).toBeGreaterThan(0);
+    expect(found?.color).toMatch(/^[0-9a-f]{6}$/i);
   });
 
   it('has exactly 7 labels (4 type + 2 maxsim + 1 verification)', () => {