Phase 1+2: Nx workspace with apps, libs, and module boundaries

apps/api-e2e/tsconfig.spec.json

@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../dist/out-tsc",
+    "module": "commonjs",
+    "types": ["jest", "node"]
+  },
+  "include": ["jest.config.ts", "src/**/*.ts"]
+}