style: auto-fix ESLint issues (curly braces and formatting)

- Add curly braces to all if/else/for/while statements
- Fix indentation and trailing spaces
- Auto-fixed 372 linting errors using eslint --fix
- Remaining issues are warnings only (non-null assertions, explicit any types)

src/automation/webhooks.test.ts

@@ -36,7 +36,7 @@ function mockResponse(): ServerResponse & { statusCode_: number; body_: string;
     headers_: {},
     writeHead(code: number, headers?: Record<string, string>) {
       res.statusCode_ = code;
-      if (headers) res.headers_ = headers;
+      if (headers) {res.headers_ = headers;}
       return res;
     },
     end(body?: string) {