Align golang types with openapi.yaml schema (#628)

Change Format constant from `file_path` to `filepath` to match the
OpenAPI schema definition.

This is not used by any servers yet, nor is it enforced by the database,
so it's safe to change.

pkg/model/types.go

@@ -48,7 +48,7 @@ const (
 	FormatString   Format = "string"
 	FormatNumber   Format = "number"
 	FormatBoolean  Format = "boolean"
-	FormatFilePath Format = "file_path"
+	FormatFilePath Format = "filepath"
 )
 
 // Input represents a configuration input

scripts/test_publish.sh

@@ -102,7 +102,7 @@ cat > "$PAYLOAD_FILE" << EOF
           "type": "positional",
           "name": "config",
           "description": "Configuration file path",
-          "format": "file_path",
+          "format": "filepath",
           "isRequired": false,
           "default": "./config.json"
         }