chore: Enhance CI workflow summary and improve JWT token generation

This commit updates the CI workflow summary to provide a clearer overview of job results and their purposes. It also modifies the JWT token generation in the authentication API to include a unique identifier (`jti`) for both access and refresh tokens, improving token management. Additionally, the test for the token refresh endpoint is adjusted to ensure it verifies the new access token correctly.

tests/test_api_auth.py

@@ -126,7 +126,7 @@ class TestTokenRefresh:
     """Test token refresh endpoint."""
 
     def test_refresh_token_success(
-        self, test_client: TestClient, auth_token: str
+        self, test_client: TestClient
     ):
         """Verify successful token refresh."""
         # Get refresh token from login
@@ -134,7 +134,10 @@ class TestTokenRefresh:
             "/api/v1/auth/login",
             json={"username": "testadmin", "password": "testpass"}
         )
-        refresh_token = login_response.json()["refresh_token"]
+        assert login_response.status_code == 200
+        login_data = login_response.json()
+        initial_access_token = login_data["access_token"]
+        refresh_token = login_data["refresh_token"]
         
         # Use refresh token to get new access token
         response = test_client.post(
@@ -146,7 +149,7 @@ class TestTokenRefresh:
         data = response.json()
         assert "access_token" in data
         assert "refresh_token" in data
-        assert data["access_token"] != auth_token  # Should be different token
+        assert data["access_token"] != initial_access_token  # Should be different token
 
     def test_refresh_token_with_invalid_token(self, test_client: TestClient):
         """Verify 401 with invalid refresh token."""