Add sync-snippets script for type-checked examples (#1487)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

common/eslint-config/eslint.config.mjs

@@ -86,6 +86,14 @@ export default defineConfig(
             'unicorn/consistent-function-scoping': 'off'
         }
     },
+    {
+        // Example files contain intentionally unused functions (one per region)
+        files: ['**/*.examples.ts'],
+        rules: {
+            '@typescript-eslint/no-unused-vars': 'off',
+            'no-console': 'off'
+        }
+    },
     {
         // Ignore generated protocol types everywhere
         ignores: ['**/spec.types.ts']