chore: snapshot local dev updates before merge

backend/tests/unit/test_logging_banner.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+from core.logging.banner import build_service_banner
+
+
+def test_build_service_banner_contains_service_name() -> None:
+    banner = build_service_banner(
+        service_name="web",
+        environment="dev",
+    )
+
+    assert "WEB" in banner
+    assert "dev" in banner
+
+
+def test_build_service_banner_uppercases_service_name() -> None:
+    banner = build_service_banner(
+        service_name="worker-critical",
+        environment="prod",
+    )
+
+    assert "WORKER-CCRITICAL" in banner.upper() or "WORKER" in banner
+
+
+def test_build_service_banner_includes_border() -> None:
+    banner = build_service_banner(
+        service_name="web",
+        environment="dev",
+    )
+
+    lines = banner.strip().split("\n")
+    assert len(lines) >= 3
+    assert all(line.startswith("=") or "WEB" in line or "dev" in line for line in lines)