Fix worker deployment engine version (#1820)

* enable re2 cli flag by default

* background worker engine determines deployment type

Author: nicktrn

apps/webapp/app/v3/services/createDeployedBackgroundWorker.server.ts

@@ -101,6 +101,7 @@ export class CreateDeployedBackgroundWorkerService extends BaseService {
           status: "DEPLOYED",
           workerId: backgroundWorker.id,
           deployedAt: new Date(),
+          type: backgroundWorker.engine === "V2" ? "MANAGED" : "V1",
         },
       });
 

apps/webapp/app/v3/services/createDeploymentBackgroundWorker.server.ts

@@ -130,6 +130,7 @@ export class CreateDeploymentBackgroundWorkerService extends BaseService {
           status: "DEPLOYING",
           workerId: backgroundWorker.id,
           builtAt: new Date(),
+          type: backgroundWorker.engine === "V2" ? "MANAGED" : "V1",
         },
       });
 

packages/cli-v3/src/config.ts

@@ -169,7 +169,9 @@ async function resolveConfig(
 
   dirs = dirs.map((dir) => resolveTriggerDir(dir, workingDir));
 
-  const features = featuresFromCompatibilityFlags(config.compatibilityFlags ?? []);
+  const features = featuresFromCompatibilityFlags(
+    ["run_engine_v2" as const].concat(config.compatibilityFlags ?? [])
+  );
 
   const defaultRuntime: BuildRuntime = features.run_engine_v2 ? "node-22" : DEFAULT_RUNTIME;