fix: 修复 develop 调度锁、运行恢复与 Alpine 缓存并发 (#3070)

* fix: repair develop scheduler locks and runtime recovery

* test: wait for child reaping after verified termination

* fix: abort cron mutations when scheduler deletion fails

test/back/scheduler-rpc-timeout.test.cjs

@@ -0,0 +1,49 @@
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const grpc = require('@grpc/grpc-js');
+const load = require('../helpers/load-security-module.cjs');
+
+for (const method of ['addCron', 'delCron']) {
+  test(`${method} invalidates an uncertain timed-out write without replaying it`, async () => {
+    let writes = 0;
+    let invalidations = 0;
+    const timeout = Object.assign(new Error('response deadline exceeded'), {
+      code: grpc.status.DEADLINE_EXCEEDED,
+    });
+    const fake = {
+      waitForReady: (_deadline, callback) => callback(),
+      [method]: (_request, _metadata, _options, callback) => {
+        // The server may have applied the write before the response was lost.
+        writes++;
+        callback(timeout);
+      },
+    };
+    const client = load('back/schedule/client.ts', {
+      '../protos/cron': {
+        CronClient: class {
+          constructor() {
+            return fake;
+          }
+        },
+      },
+      '../config': { grpcPort: 5500 },
+      '../config/grpcCerts': {
+        getGrpcCerts: () => ({
+          caCert: 'ca',
+          clientKey: 'key',
+          clientCert: 'cert',
+        }),
+      },
+      '@grpc/grpc-js': { ...grpc, credentials: { createSsl: () => ({}) } },
+    }).default;
+    client.readiness.invalidate = () => invalidations++;
+    await assert.rejects(client[method]([]), (error) => error === timeout);
+    assert.equal(
+      invalidations,
+      1,
+      'reconcile from the DB after an uncertain RPC result',
+    );
+    assert.equal(timeout.status, 503);
+    assert.equal(writes, 1, 'do not replay an uncertain mutation');
+  });
+}