fix api container package entrypoint

apps/api/Dockerfile

@@ -7,4 +7,4 @@ COPY schema.sql /app/schema.sql
 RUN mkdir -p /data && chown -R app:app /app /data
 USER app
 EXPOSE 8000
-CMD ["python", "/app/app/main.py", "--host", "0.0.0.0", "--port", "8000", "--db", "/data/prospects.db"]
+CMD ["python", "-m", "app.main", "--host", "0.0.0.0", "--port", "8000", "--db", "/data/prospects.db"]

apps/api/tests/test_phase15_ops.py

@@ -52,6 +52,11 @@ class Phase15OpsTests(unittest.TestCase):
         self.assertIn("urllib.request.urlopen('http://127.0.0.1:8080/healthz'", compose)
         self.assertNotIn('test: ["CMD", "wget", "--spider"', compose)
 
+    def test_api_container_uses_package_entrypoint_for_relative_imports(self):
+        dockerfile = (ROOT / "apps/api/Dockerfile").read_text()
+        self.assertIn('CMD ["python", "-m", "app.main"', dockerfile)
+        self.assertNotIn('CMD ["python", "/app/app/main.py"', dockerfile)
+
     def test_backup_restore_integrity_and_checksum(self):
         with TemporaryDirectory() as tmp:
             root = Path(tmp); db = root / "prospects.db"; backups = root / "backups"