test: add tests for Gitea comment operations

- Implement testCreateComment with PR creation and verification
- Implement testUpdateComment with comment modification flow
- Add try/finally cleanup to prevent test repository leaks
- Remove skipped test markers for createComment and updateComment

Author: Your Name

tests/VCS/Adapter/GiteaTest.php

@@ -505,7 +505,40 @@ public function testGenerateCloneCommandWithTag(): void
 
     public function testUpdateComment(): void
     {
-        $this->markTestSkipped('Will be implemented in follow-up PR');
+        $repositoryName = 'test-update-comment-' . \uniqid();
+        $this->vcsAdapter->createRepository(self::$owner, $repositoryName, false);
+
+        try {
+            $this->vcsAdapter->createFile(self::$owner, $repositoryName, 'README.md', '# Test');
+            $this->vcsAdapter->createBranch(self::$owner, $repositoryName, 'test-branch', 'main');
+            $this->vcsAdapter->createFile(self::$owner, $repositoryName, 'test.txt', 'test', 'Add test', 'test-branch');
+
+            // Create PR
+            $pr = $this->vcsAdapter->createPullRequest(
+                self::$owner,
+                $repositoryName,
+                'Test PR',
+                'test-branch',
+                'main'
+            );
+
+            $prNumber = $pr['number'] ?? 0;
+            $this->assertGreaterThan(0, $prNumber);
+
+            // Create comment
+            $commentId = $this->vcsAdapter->createComment(self::$owner, $repositoryName, $prNumber, 'Original comment');
+
+            // Test updateComment
+            $updatedCommentId = $this->vcsAdapter->updateComment(self::$owner, $repositoryName, (int)$commentId, 'Updated comment');
+
+            $this->assertSame($commentId, $updatedCommentId);
+
+            // Verify comment was updated
+            $finalComment = $this->vcsAdapter->getComment(self::$owner, $repositoryName, $commentId);
+            $this->assertSame('Updated comment', $finalComment);
+        } finally {
+            $this->vcsAdapter->deleteRepository(self::$owner, $repositoryName);
+        }
     }
 
     public function testGetCommit(): void
@@ -788,7 +821,39 @@ public function testGetPullRequestFromBranchNoPR(): void
 
     public function testCreateComment(): void
     {
-        $this->markTestSkipped('Will be implemented in follow-up PR');
+        $repositoryName = 'test-create-comment-' . \uniqid();
+        $this->vcsAdapter->createRepository(self::$owner, $repositoryName, false);
+
+        try {
+            $this->vcsAdapter->createFile(self::$owner, $repositoryName, 'README.md', '# Test');
+            $this->vcsAdapter->createBranch(self::$owner, $repositoryName, 'test-branch', 'main');
+            $this->vcsAdapter->createFile(self::$owner, $repositoryName, 'test.txt', 'test', 'Add test', 'test-branch');
+
+            // Create PR
+            $pr = $this->vcsAdapter->createPullRequest(
+                self::$owner,
+                $repositoryName,
+                'Test PR',
+                'test-branch',
+                'main'
+            );
+
+            $prNumber = $pr['number'] ?? 0;
+            $this->assertGreaterThan(0, $prNumber);
+
+            // Test createComment
+            $commentId = $this->vcsAdapter->createComment(self::$owner, $repositoryName, $prNumber, 'Test comment');
+
+            $this->assertNotEmpty($commentId);
+            $this->assertIsString($commentId);
+            $this->assertIsNumeric($commentId);
+
+            // Verify comment was created
+            $retrievedComment = $this->vcsAdapter->getComment(self::$owner, $repositoryName, $commentId);
+            $this->assertSame('Test comment', $retrievedComment);
+        } finally {
+            $this->vcsAdapter->deleteRepository(self::$owner, $repositoryName);
+        }
     }
 
     public function testCreateFile(): void