feat(runtime-adapters): Enable TypeScript decorator support for Deno and Bun runtimes and add decorator tests

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tstest',
-  version: '2.7.0',
+  version: '2.8.0',
   description: 'a test utility to run tests that match test/**/*.ts'
 }

ts/tstest.classes.runtime.bun.ts

@@ -69,6 +69,9 @@ export class BunRuntimeAdapter extends RuntimeAdapter {
 
     const args: string[] = ['run'];
 
+    // Note: Bun automatically discovers bunfig.toml in the current directory
+    // This ensures TypeScript decorator support is enabled if bunfig.toml is present
+
     // Add extra args
     if (mergedOptions.extraArgs && mergedOptions.extraArgs.length > 0) {
       args.push(...mergedOptions.extraArgs);

ts/tstest.classes.runtime.deno.ts

@@ -31,8 +31,20 @@ export class DenoRuntimeAdapter extends RuntimeAdapter {
    * Get default Deno options
    */
   protected getDefaultOptions(): DenoOptions {
+    // Auto-detect deno.json or deno.jsonc config file for TypeScript decorator support
+    let configPath: string | undefined;
+    const denoJsonPath = plugins.path.join(process.cwd(), 'deno.json');
+    const denoJsoncPath = plugins.path.join(process.cwd(), 'deno.jsonc');
+
+    if (plugins.smartfile.fs.fileExistsSync(denoJsonPath)) {
+      configPath = denoJsonPath;
+    } else if (plugins.smartfile.fs.fileExistsSync(denoJsoncPath)) {
+      configPath = denoJsoncPath;
+    }
+
     return {
       ...super.getDefaultOptions(),
+      configPath,
       permissions: [
         '--allow-read',
         '--allow-env',