Restore SSG serve logic (#4111)

* Build ssg routes when both the client and server builds are finished

* Fix default server fn encoding

* fix tokio console

* fix ssg

* add prerendering message

* render under the same environment variables as normal

* fix check

* use should_bundle_to_asset

* enable ssg playwright test

* fix clippy

packages/cli/src/serve/output.rs

@@ -550,6 +550,7 @@ impl Output {
             BuildStage::Linking => lines.push("Linking".yellow()),
             BuildStage::Hotpatching => lines.push("Hot-patching...".yellow()),
             BuildStage::ExtractingAssets => lines.push("Extracting assets".yellow()),
+            BuildStage::Prerendering => lines.push("Pre-rendering...".yellow()),
             _ => {}
         };