fix: suppress experimental sqlite warning at startup

src/entry.ts

@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+import { spawnSync } from "node:child_process";
 import process from "node:process";
 
 import { applyCliProfileEnv, parseCliProfileArgs } from "./cli/profile.js";
@@ -8,6 +9,32 @@ if (process.argv.includes("--no-color")) {
   process.env.FORCE_COLOR = "0";
 }
 
+const EXPERIMENTAL_WARNING_FLAG = "--disable-warning=ExperimentalWarning";
+
+function hasExperimentalWarningSuppressed(nodeOptions: string): boolean {
+  if (!nodeOptions) return false;
+  return (
+    nodeOptions.includes(EXPERIMENTAL_WARNING_FLAG) ||
+    nodeOptions.includes("--no-warnings")
+  );
+}
+
+function ensureExperimentalWarningSuppressed(): void {
+  if (process.env.CLAWDBOT_NODE_OPTIONS_READY === "1") return;
+  const nodeOptions = process.env.NODE_OPTIONS ?? "";
+  if (hasExperimentalWarningSuppressed(nodeOptions)) return;
+  process.env.CLAWDBOT_NODE_OPTIONS_READY = "1";
+  process.env.NODE_OPTIONS = `${nodeOptions} ${EXPERIMENTAL_WARNING_FLAG}`.trim();
+  const result = spawnSync(process.execPath, process.argv.slice(1), {
+    stdio: "inherit",
+    env: process.env,
+  });
+  if (result.signal) process.exit(1);
+  process.exit(result.status ?? 1);
+}
+
+ensureExperimentalWarningSuppressed();
+
 const parsed = parseCliProfileArgs(process.argv);
 if (!parsed.ok) {
   // Keep it simple; Commander will handle rich help/errors after we strip flags.