fix: update build config and improve e2e adapter handling

Added dynamic inclusion of dependencies as external packages and switched build platform to browser. Streamlined e2e adapter test setup, improved type safety, and standardized console output for better clarity.

app/build.ts

@@ -61,8 +61,11 @@ function delayTypes() {
    watcher_timeout = setTimeout(buildTypes, 1000);
 }
 
+const dependencies = Object.keys(pkg.dependencies);
+
 // collection of always-external packages
 const external = [
+   ...dependencies,
    "bun:test",
    "node:test",
    "node:assert/strict",
@@ -87,7 +90,7 @@ async function buildApi() {
       external: [...external],
       metafile: true,
       target: "esnext",
-      platform: "neutral",
+      platform: "browser",
       format: ["esm"],
       splitting: false,
       loader: {