/** * Build the ES module source that runs inside the dynamic Worker. * * The module exports a `WorkerEntrypoint` subclass with an `evaluate` * method that: * 1. Captures console output into `__logs`. * 2. Creates a recursive `tools` Proxy that dispatches calls via RPC. * 3. Executes the normalised user code with a `Promise.race` timeout. * 4. Returns `{ result, error?, logs }`. */export const buildExecutorModule = (normalizedCode: string, timeoutMs: number): string =>  [    'import { WorkerEntrypoint } from "cloudflare:workers";',    "",    "export default class CodeExecutor extends WorkerEntrypoint {",    "  async evaluate(__dispatcher) {",    "    const __logs = [];",    '    console.log = (...a) => { __logs.push(a.map(String).join(" ")); };',    '    console.warn = (...a) => { __logs.push("[warn] " + a.map(String).join(" ")); };',    '    console.error = (...a) => { __logs.push("[error] " + a.map(String).join(" ")); };',    "",    "    const __makeToolsProxy = (path = []) => new Proxy(() => undefined, {",    "      get(_target, prop) {",    "        if (prop === 'then' || typeof prop === 'symbol') return undefined;",    "        return __makeToolsProxy([...path, String(prop)]);",    "      },",    "      apply(_target, _thisArg, args) {",    "        const toolPath = path.join('.');",    "        if (!toolPath) throw new Error('Tool path missing in invocation');",    "        return __dispatcher.call(toolPath, JSON.stringify(args[0] ?? {})).then((raw) => {",    "          const data = JSON.parse(raw);",    "          if (data.error) throw new Error(data.error);",    "          return data.result;",    "        });",    "      },",    "    });",    "    const tools = __makeToolsProxy();",    "",    "    try {",    "      const result = await Promise.race([",    `        (${normalizedCode})(),`,    "        new Promise((_, reject) =>",    `          setTimeout(() => reject(new Error("Execution timed out after ${timeoutMs}ms")), ${timeoutMs})`,    "        ),",    "      ]);",    "      return { result, logs: __logs };",    "    } catch (err) {",    "      return { result: undefined, error: err.message ?? String(err), logs: __logs };",    "    }",    "  }",    "}",  ].join("\n");