modernize backend to target the same ES and TS standards as the rest of the app

packages/backend/test-server/tsconfig.json

@@ -1,53 +1,28 @@
 {
+	"extends": "../tsconfig.backend.json",
 	"compilerOptions": {
-		"allowJs": true,
-		"noEmitOnError": true,
-		"noImplicitAny": true,
-		"noImplicitReturns": true,
-		"noUnusedParameters": false,
-		"noUnusedLocals": false,
-		"noFallthroughCasesInSwitch": true,
-		"declaration": false,
-		"sourceMap": true,
-		"target": "ES2022",
-		"module": "nodenext",
-		"moduleResolution": "nodenext",
-		"allowSyntheticDefaultImports": true,
-		"removeComments": false,
-		"noLib": false,
-		"strict": true,
-		"strictNullChecks": true,
-		"strictPropertyInitialization": false,
-		"skipLibCheck": true,
-		"experimentalDecorators": true,
-		"emitDecoratorMetadata": true,
-		"resolveJsonModule": true,
-		"isolatedModules": true,
-		"incremental": true,
-		"rootDir": "../src",
-		"baseUrl": "./",
+		"rootDir": "../",
 		"paths": {
 			"@/*": ["../src/*"]
 		},
 		"outDir": "../built-test",
-		"types": [
-			"node"
-		],
 		"typeRoots": [
 			"../src/@types",
 			"../node_modules/@types",
 			"../node_modules"
-		],
-		"lib": [
-			"esnext"
 		]
 	},
-	"compileOnSave": false,
 	"include": [
 		"./**/*.ts",
 		"../src/**/*.ts"
 	],
 	"exclude": [
+		"**/node_modules",
+		"**/built/",
+		"**/*.test.ts",
+		"./test/**/*",
+		"./test-federation/**/*",
+		"./test-server/**/*",
 		"../src/**/*.test.ts"
 	]
 }