fix(dev): release run-node build lock on SIGINT/SIGTERM/exit (#69785)

scripts/run-node.d.mts

@@ -13,6 +13,15 @@ export function resolveBuildRequirement(deps: {
   configFiles: string[];
 }): { shouldBuild: boolean; reason: string };
 
+export function acquireRunNodeBuildLock(deps: {
+  cwd: string;
+  args: readonly string[];
+  env: NodeJS.ProcessEnv;
+  fs: unknown;
+  process: NodeJS.Process;
+  stderr: { write: (value: string) => void };
+}): Promise<() => void>;
+
 export function runNodeMain(params?: {
   spawn?: (
     cmd: string,

scripts/run-node.mjs

@@ -459,7 +459,7 @@ const removeStaleBuildLock = (deps, lockDir, staleMs) => {
   }
 };
 
-const acquireRunNodeBuildLock = async (deps) => {
+export const acquireRunNodeBuildLock = async (deps) => {
   const lockRoot = path.join(deps.cwd, ".artifacts");
   const lockDir = path.join(lockRoot, "run-node-build.lock");
   const timeoutMs = parsePositiveIntegerEnv(
@@ -501,8 +501,29 @@ const acquireRunNodeBuildLock = async (deps) => {
       } catch {
         // Owner metadata is diagnostic only; the directory itself is the lock.
       }
+      let released = false;
+      const removeLockDir = () => {
+        if (released) {
+          return;
+        }
+        released = true;
+        try {
+          deps.fs.rmSync(lockDir, { recursive: true, force: true });
+        } catch {
+          // Best-effort cleanup; a follow-up waiter will fall back to staleness
+          // detection if the directory is still present.
+        }
+      };
+      const onSignal = () => removeLockDir();
+      const onExit = () => removeLockDir();
+      deps.process.on("SIGINT", onSignal);
+      deps.process.on("SIGTERM", onSignal);
+      deps.process.on("exit", onExit);
       return () => {
-        deps.fs.rmSync(lockDir, { recursive: true, force: true });
+        deps.process.off("SIGINT", onSignal);
+        deps.process.off("SIGTERM", onSignal);
+        deps.process.off("exit", onExit);
+        removeLockDir();
       };
     } catch (error) {
       if (error?.code !== "EEXIST") {