🔧 Reconcile config/doc contradictions and remove stale entries

tsconfig.build.json

@@ -3,8 +3,7 @@
     "compilerOptions": {
         "noEmit": false,
         "rewriteRelativeImportExtensions": true,
-        "rootDir": "src",
-        "outDir": "dist"
+        "rootDir": "src"
     },
     "exclude": ["src/**/*.test.ts", "src/**/__tests__/**"]
 }