feat: add minimal run engine

apps/api/tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist",
+    "types": ["node", "vitest"]
+  },
+  "include": ["src/**/*.ts"],
+  "references": [
+    { "path": "../../packages/core" },
+    { "path": "../../packages/db" },
+    { "path": "../../packages/run-engine" },
+    { "path": "../../packages/session" }
+  ]
+}