fix: load global .env fallback

src/infra/dotenv.ts

@@ -0,0 +1,20 @@
+import fs from "node:fs";
+import path from "node:path";
+
+import dotenv from "dotenv";
+
+import { resolveConfigDir } from "../utils.js";
+
+export function loadDotEnv(opts?: { quiet?: boolean }) {
+  const quiet = opts?.quiet ?? true;
+
+  // Load from process CWD first (dotenv default).
+  dotenv.config({ quiet });
+
+  // Then load global fallback: ~/.clawdbot/.env (or CLAWDBOT_STATE_DIR/.env),
+  // without overriding any env vars already present.
+  const globalEnvPath = path.join(resolveConfigDir(process.env), ".env");
+  if (!fs.existsSync(globalEnvPath)) return;
+
+  dotenv.config({ quiet, path: globalEnvPath, override: false });
+}