Cleaned dead code and updated documents

backends/mizan-ts/src/decorator.ts

@@ -52,10 +52,6 @@ function extractParams(fn: Function): ParamDef[] {
         })
 }
 
-function isResponseReturn(result: any): boolean {
-    return result instanceof Response
-}
-
 /**
  * Function wrapper — registers a standalone function.
  *

backends/mizan-ts/src/dispatch.ts

@@ -22,10 +22,6 @@ export interface MizanResponse {
     headers: Record<string, string>
 }
 
-function sortedStringify(data: any): string {
-    return JSON.stringify(data, Object.keys(data).sort())
-}
-
 /**
  * Handle GET /api/mizan/ctx/:contextName/
  *