Decouple v2 CI green from Postgres investigation in #427

MySQL is the primary CI gate today; the Postgres suite hangs silently
~70s into the run for reasons tracked under #427 (TD-064). The hang
consumes the full 60-minute step timeout with no test-name output
because --testdox only prints a test name on completion. That leaves
us with a red CI and zero signal to investigate from.

Two changes to unblock:

1. `continue-on-error: true` on the Postgres step so MySQL green makes
   the job green. Tests still run, failures are still visible in the
   run UI, but the job overall doesn't block other workstreams while
   the multi-DB workstream is open.
2. `--debug` on the Postgres step so each test prints on entry, not
   just on completion. When the suite stalls the last test name is
   the hang point — today we only have "last laravel.log line at
   16:08:41" as a breadcrumb.

Log upload is now gated on either suite's `outcome == 'failure'` so
laravel.log is still captured on Postgres hangs despite the step's
continue-on-error.

Drop both knobs when #427 closes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: durable-workflow-ops

.github/workflows/php.yml

@@ -77,6 +77,7 @@ jobs:
         mysql -e 'CREATE DATABASE testbench' -h127.0.0.1 -uroot -ppassword -P ${{ job.services.mysql.ports[3306] }}
 
     - name: Run test suite (MySQL)
+      id: mysql_suite
       timeout-minutes: 65
       run: timeout --foreground 60m vendor/bin/phpunit --testdox --testsuite feature
       env:
@@ -85,17 +86,24 @@ jobs:
         QUEUE_CONNECTION: redis
         XDEBUG_MODE: off
 
+    # PostgreSQL suite is currently non-blocking while #427 (TD-064: multi-DB
+    # support workstream) is open — MySQL is the primary gate. --debug prints
+    # each test name as it starts so when the suite stalls in CI the hang
+    # point is visible in the step log instead of hidden behind the 60m
+    # timeout. Drop continue-on-error (and optionally --debug) when #427 lands.
     - name: Run test suite (PostgreSQL)
+      id: pgsql_suite
+      continue-on-error: true
       timeout-minutes: 65
-      run: timeout --foreground 60m vendor/bin/phpunit --testdox --testsuite feature
+      run: timeout --foreground 60m vendor/bin/phpunit --testdox --debug --testsuite feature
       env:
         DB_CONNECTION: pgsql
         DB_PORT: ${{ job.services.postgres.ports[5432] }}
         QUEUE_CONNECTION: redis
         XDEBUG_MODE: off
 
     - name: Upload laravel.log if tests fail
-      if: failure()
+      if: failure() || steps.mysql_suite.outcome == 'failure' || steps.pgsql_suite.outcome == 'failure'
       uses: actions/upload-artifact@v4
       with:
         name: laravel-log