fix(tests): simplify invalid token test logic in test_auth_security.py

- Removed unnecessary try-except block for JWT encoding failures.
- Adjusted test to directly verify `TokenInvalidError` during decoding.
- Clarified comment on HMAC algorithm compatibility (`HS384` vs. `HS256`).

backend/pyproject.toml

@@ -157,7 +157,7 @@ unfixable = []
 [tool.ruff.lint.per-file-ignores]
 "app/alembic/env.py" = ["E402", "F403", "F405"]  # Alembic requires specific import order
 "app/alembic/versions/*.py" = ["E402"]  # Migration files have specific structure
-"tests/**/*.py" = ["S101", "N806", "B017", "N817", "S110", "ASYNC251", "RUF043", "T20"]  # pytest: asserts, CamelCase fixtures, blind exceptions, try-pass patterns, async test helpers, and print for debugging are intentional
+"tests/**/*.py" = ["S101", "N806", "B017", "N817", "ASYNC251", "RUF043", "T20"]  # pytest: asserts, CamelCase fixtures, blind exceptions, async test helpers, and print for debugging are intentional
 "app/models/__init__.py" = ["F401"]  # __init__ files re-export modules
 "app/models/base.py" = ["F401"]  # Re-exports Base for use by other models
 "app/utils/test_utils.py" = ["N806"]  # SQLAlchemy session factories use CamelCase convention

backend/tests/core/test_auth_security.py

@@ -148,17 +148,11 @@ class TestJWTAlgorithmSecurityAttacks:
 
         payload = {"sub": "user123", "exp": now + 3600, "iat": now, "type": "access"}
 
-        # Create token with HS384 instead of HS256
-        try:
-            malicious_token = jwt.encode(
-                payload, settings.SECRET_KEY, algorithm="HS384"
-            )
+        # Create token with HS384 instead of HS256 (HMAC key works with HS384)
+        malicious_token = jwt.encode(payload, settings.SECRET_KEY, algorithm="HS384")
 
-            with pytest.raises(TokenInvalidError):
-                decode_token(malicious_token)
-        except Exception:
-            # If encoding fails, that's also fine
-            pass
+        with pytest.raises(TokenInvalidError):
+            decode_token(malicious_token)
 
     def test_valid_token_with_correct_algorithm_accepted(self):
         """