feat: configure workspace environment runtimes

packages/cli/src/index.ts

@@ -65,6 +65,11 @@ Usage:
 Profiles: pass --profile=<name> to dev/build/db (or set WRNEXUS_PROFILE) to load
 that profile's .env cascade and config overrides. e.g. wrnexus dev --profile=uat
 
+Workspace environments: configure protocol, rootDomain, port, hostname, runtime
+(development|production), hmr, build, migrate, and profile in wrnexus.workspace.ts.
+CLI overrides: --port, --host, --build/--no-build, --migrate/--no-migrate,
+--profile, and --prepare-only.
+
 Update options: --dry-run previews changes; --no-verify skips post-update check/build.
 `);
 }
@@ -210,7 +215,16 @@ async function main(): Promise<void> {
         if (!knownEnvironments.has(command)) throw new Error("unknown-environment-command");
         const environmentArgs = rest.filter((arg) => arg !== workspaceRoot);
         environmentArgs.push(`--environment=${command}`);
-        if (command === "development") {
+        const environmentConfig = workspace.environments?.[command];
+        const runtime =
+          environmentConfig?.runtime ?? (command === "development" ? "development" : "production");
+        if (runtime === "development") {
+          if (environmentArgs.includes("--prepare-only")) {
+            console.log(
+              `\n  ✓ Workspace environment "${command}" uses the development runtime (HMR ${environmentConfig?.hmr === false ? "disabled" : "enabled"}).\n`,
+            );
+            break;
+          }
           await runGateway(workspaceRoot, environmentArgs);
         } else {
           await runProduction(workspaceRoot, environmentArgs);