refactor: simplify Xray config response schemas

- Removed `.passthrough()` from Xray config response schemas
- Simplified config object definition in get and update config commands

Author: kastov

libs/contract/commands/xray/get-config.command.ts

@@ -7,7 +7,7 @@ export namespace GetXrayConfigCommand {
 
     export const ResponseSchema = z.object({
         response: z.object({
-            config: z.object({}).passthrough(),
+            config: z.object({}),
         }),
     });
 

libs/contract/commands/xray/update-config.command.ts

@@ -12,7 +12,7 @@ export namespace UpdateXrayConfigCommand {
 
     export const ResponseSchema = z.object({
         response: z.object({
-            config: z.object({}).passthrough(),
+            config: z.object({}),
         }),
     });