Refactor VM and Plugin Management

- Removed the `plugins.constants.ts` file as it was no longer needed.
- Updated the `vm.class.ts` to improve result handling and logging.
- Introduced `vm.constants.ts` to manage registered plugins and modules.
- Simplified the test payload in `case1-payload.js` by removing unnecessary insert logic.
- Enhanced `case1.ts` to include database and migration setup, improving test clarity.
- Deleted unused functions for adding modules and plugins, streamlining the codebase.

src/vm/vm.class.ts

@@ -56,10 +56,10 @@ export class Vm {
       rejectPromise = reject;
     });
 
-    this.setFunction("returnResult", (...args) => {
-      console.log("Script result:", args);
+    this.setFunction("returnResult", (res) => {
+      console.log("Returning result from VM:", res);
 
-      resolvePromise(args);
+      resolvePromise(JSON.parse(res));
     });
 
     // TODO: log
@@ -77,7 +77,7 @@ export class Vm {
             ${script}
             try {
                 const result = await main(${JSON.stringify(args)});
-                returnResult(result)
+                returnResult(JSON.stringify(result))
             } catch (e) {
                 error(e)
             }