feat: use project references to build dependencies efficiently

server/tsconfig.json

@@ -4,5 +4,11 @@
     "outDir": "./dist"
   },
   "include": ["src"],
-  "exclude": ["node_modules", "src/*.test.js", "dist"]
+  "exclude": ["node_modules", "src/*.test.js", "dist"],
+  "references": [
+    { "path": "../packages/constants" },
+    { "path": "../packages/file-graph" },
+    { "path": "../packages/models" },
+    { "path": "../packages/utils" }
+  ]
 }