Temporarily re-add CI debug output for 26.3 failure

https://claude.ai/code/session_01F4RsGjVD4jny3Lder5wqbc

Author: claude

.github/workflows/ci.yml

@@ -104,7 +104,24 @@ jobs:
             dependency-versions: "${{ matrix.dependency-versions }}"
 
       -   name: "Run PHPUnit"
-          run: "vendor/bin/phpunit"
+          run: |
+            vendor/bin/phpunit --testdox 2>&1 | tee /tmp/phpunit-output.txt
+            exit ${PIPESTATUS[0]}
+
+      -   name: "Post PHPUnit output on failure"
+          if: failure()
+          uses: actions/github-script@v7
+          with:
+            script: |
+              const fs = require('fs');
+              const output = fs.readFileSync('/tmp/phpunit-output.txt', 'utf8');
+              const body = `## PHPUnit failure: PHP ${{ matrix.php-version }}, ClickHouse ${{ matrix.clickhouse-version }}\n\`\`\`\n${output.slice(-3000)}\n\`\`\``;
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                body: body
+              });
 
   upload_coverage:
     name: "Upload coverage to Codecov"