Fix test expectations for server name validation

Updated test expectations to align with actual Huma framework behavior
where schema validation occurs before handler execution:

- Changed expected status from 400 to 422 (Unprocessable Entity)
- Updated error message checks to match Huma's pattern validation error
- Fixed "invalid token" test to use valid server name format

Schema validation in Huma happens at the framework level before the
handler function runs, so invalid server names (with multiple slashes,
no slashes, etc.) return 422 with pattern matching errors rather than
custom 400 errors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: domdomegg

internal/api/handlers/v0/publish_test.go

@@ -131,7 +131,7 @@ func TestPublishEndpoint(t *testing.T) {
 			name: "invalid token",
 			requestBody: apiv0.ServerJSON{
 				Schema:      model.CurrentSchemaURL,
-				Name:        "test-server",
+				Name:        "example/test-server",
 				Description: "A test server",
 				Version:     "1.0.0",
 			},
@@ -252,8 +252,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 		{
 			name: "invalid server name - multiple slashes (three slashes)",
@@ -270,8 +270,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 		{
 			name: "invalid server name - consecutive slashes",
@@ -288,8 +288,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 		{
 			name: "invalid server name - URL-like path",
@@ -306,8 +306,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 		{
 			name: "invalid server name - many slashes",
@@ -324,8 +324,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 		{
 			name: "invalid server name - with packages and remotes",
@@ -363,8 +363,8 @@ func TestPublishEndpoint(t *testing.T) {
 				},
 			},
 			setupRegistryService: func(_ service.RegistryService) {},
-			expectedStatus:       http.StatusBadRequest,
-			expectedError:        "server name cannot contain multiple slashes",
+			expectedStatus:       http.StatusUnprocessableEntity,
+			expectedError:        "expected string to match pattern",
 		},
 	}
 
@@ -447,25 +447,25 @@ func TestPublishEndpoint_MultipleSlashesEdgeCases(t *testing.T) {
 		{
 			name:           "invalid - trailing slash after valid name",
 			serverName:     "com.example/server/",
-			expectedStatus: http.StatusBadRequest,
+			expectedStatus: http.StatusUnprocessableEntity,
 			description:    "Trailing slash creates multiple slashes",
 		},
 		{
 			name:           "invalid - leading and middle slash",
 			serverName:     "/com.example/server",
-			expectedStatus: http.StatusBadRequest,
+			expectedStatus: http.StatusUnprocessableEntity,
 			description:    "Leading slash with middle slash",
 		},
 		{
 			name:           "invalid - file system style path",
 			serverName:     "usr/local/bin/server",
-			expectedStatus: http.StatusBadRequest,
+			expectedStatus: http.StatusUnprocessableEntity,
 			description:    "File system style paths should be rejected",
 		},
 		{
 			name:           "invalid - version-like suffix",
 			serverName:     "com.example/server/v1.0.0",
-			expectedStatus: http.StatusBadRequest,
+			expectedStatus: http.StatusUnprocessableEntity,
 			description:    "Version suffixes with slash should be rejected",
 		},
 	}
@@ -517,9 +517,9 @@ func TestPublishEndpoint_MultipleSlashesEdgeCases(t *testing.T) {
 			assert.Equal(t, tc.expectedStatus, rr.Code,
 				"%s: expected status %d, got %d", tc.description, tc.expectedStatus, rr.Code)
 
-			if tc.expectedStatus == http.StatusBadRequest {
-				assert.Contains(t, rr.Body.String(), "server name cannot contain multiple slashes",
-					"%s: should contain specific error message", tc.description)
+			if tc.expectedStatus == http.StatusUnprocessableEntity {
+				assert.Contains(t, rr.Body.String(), "expected string to match pattern",
+					"%s: should contain pattern validation error", tc.description)
 			}
 		})
 	}