refactor(config): update vitest configuration for .test.ts naming

Update vitest.config.ts to reference .test.ts files instead of .spec.ts:
- Change include patterns from *.spec.ts to *.test.ts
- Simplify coverage exclude patterns by removing deprecated patterns
- Update typecheck include patterns to match new naming convention
- Fix outdated path reference in exclude list

Author: ryoppippi

vitest.config.ts

@@ -9,20 +9,20 @@ export default defineConfig({
       provider: 'v8',
       reporter: ['text', 'json', 'json-summary', 'html'],
       include: ['src/**/*.ts', 'examples/**/*.ts'],
-      exclude: ['**/*.spec.ts', '**/*.test.ts', '**/*.test-d.ts', '**/tests/**'],
+      exclude: ['**/*.test.ts', '**/*.test-d.ts'],
     },
     projects: [
       {
         extends: true,
         test: {
           name: 'root',
           root: '.',
-          include: ['src/**/*.spec.ts', 'scripts/**/*.spec.ts'],
-          exclude: ['node_modules', 'dist', 'examples', 'src/toolsets/tests/stackone.mcp-fetch.spec.ts'],
+          include: ['src/**/*.test.ts', 'scripts/**/*.test.ts'],
+          exclude: ['node_modules', 'dist', 'examples', 'src/toolsets/stackone.mcp-fetch.test.ts'],
           setupFiles: ['./vitest.setup.ts'],
           typecheck: {
             enabled: true,
-            include: ['src/**/*.spec.ts', 'src/**/*.test-d.ts'],
+            include: ['src/**/*.test.ts', 'src/**/*.test-d.ts'],
           },
         },
       },