feat: add CI/CD testing infrastructure with test.sh orchestrator

Complete testing system: pyproject.toml (pytest markers), test.sh
orchestrator with auto app start/stop and colorful summary,
pre-push hook, Gitea Actions workflow.

New QA tests: API health (7 endpoints), responsive (3 viewports),
log monitoring (ERROR/ORA-/Traceback detection), real GoMag sync,
PL/SQL package validation, smoke prod (read-only).

Converted test_app_basic.py and test_integration.py to pytest.
Added pytestmark to all existing tests (unit/e2e/oracle).
E2E conftest upgraded: console error collector, screenshot on
failure, auto-detect live app on :5003.

Usage: ./test.sh ci (30s) | ./test.sh full (2-3min)

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

api/tests/qa/conftest.py

@@ -0,0 +1,100 @@
+"""
+QA test fixtures — shared across api_health, responsive, smoke_prod, logs_monitor,
+sync_real, plsql tests.
+"""
+import os
+import sys
+from pathlib import Path
+
+import pytest
+
+# Add api/ to path
+_api_dir = str(Path(__file__).parents[2])
+if _api_dir not in sys.path:
+    sys.path.insert(0, _api_dir)
+
+# Directories
+PROJECT_ROOT = Path(__file__).parents[3]
+QA_REPORTS_DIR = PROJECT_ROOT / "qa-reports"
+SCREENSHOTS_DIR = QA_REPORTS_DIR / "screenshots"
+LOGS_DIR = PROJECT_ROOT / "logs"
+
+
+def pytest_addoption(parser):
+    # --base-url is already provided by pytest-playwright; we reuse it
+    # Use try/except to avoid conflicts when conftest is loaded alongside other plugins
+    try:
+        parser.addoption("--env", default="test", choices=["test", "prod"], help="QA environment")
+    except ValueError:
+        pass
+    try:
+        parser.addoption("--qa-log-file", default=None, help="Specific log file to check")
+    except (ValueError, Exception):
+        pass
+
+
+@pytest.fixture(scope="session")
+def base_url(request):
+    """Reuse pytest-playwright's --base-url or default to localhost:5003."""
+    url = request.config.getoption("--base-url") or "http://localhost:5003"
+    return url.rstrip("/")
+
+
+@pytest.fixture(scope="session")
+def env_name(request):
+    return request.config.getoption("--env")
+
+
+@pytest.fixture(scope="session")
+def qa_issues():
+    """Collect issues across all QA tests for the final report."""
+    return []
+
+
+@pytest.fixture(scope="session")
+def screenshots_dir():
+    SCREENSHOTS_DIR.mkdir(parents=True, exist_ok=True)
+    return SCREENSHOTS_DIR
+
+
+@pytest.fixture(scope="session")
+def app_log_path(request):
+    """Return the most recent log file from logs/."""
+    custom = request.config.getoption("--qa-log-file", default=None)
+    if custom:
+        return Path(custom)
+
+    if not LOGS_DIR.exists():
+        return None
+
+    logs = sorted(LOGS_DIR.glob("sync_comenzi_*.log"), key=lambda p: p.stat().st_mtime, reverse=True)
+    return logs[0] if logs else None
+
+
+@pytest.fixture(scope="session")
+def oracle_connection():
+    """Create a direct Oracle connection for PL/SQL and sync tests."""
+    from dotenv import load_dotenv
+    env_path = Path(__file__).parents[2] / ".env"
+    load_dotenv(str(env_path), override=True)
+
+    user = os.environ.get("ORACLE_USER", "")
+    password = os.environ.get("ORACLE_PASSWORD", "")
+    dsn = os.environ.get("ORACLE_DSN", "")
+
+    if not all([user, password, dsn]) or user == "dummy":
+        pytest.skip("Oracle not configured (ORACLE_USER/PASSWORD/DSN missing or dummy)")
+
+    import oracledb
+    conn = oracledb.connect(user=user, password=password, dsn=dsn)
+    yield conn
+    conn.close()
+
+
+def pytest_sessionfinish(session, exitstatus):
+    """Generate QA report at end of session."""
+    try:
+        from . import qa_report
+        qa_report.generate(session, QA_REPORTS_DIR)
+    except Exception as e:
+        print(f"\n[qa_report] Failed to generate report: {e}")