Try to enhance codespaces

Author: prestoncabe

.devcontainer/Dockerfile

@@ -9,7 +9,5 @@ COPY --chown=${DEVBOX_USER}:${DEVBOX_USER} devbox.json devbox.json
 COPY --chown=${DEVBOX_USER}:${DEVBOX_USER} devbox.lock devbox.lock
 COPY --chown=${DEVBOX_USER}:${DEVBOX_USER} .env.example .env
 
-
-RUN devbox run -- echo "Installed Packages." && nix-store --gc && nix-store --optimise
-
-RUN devbox shellenv --init-hook >> ~/.profile
+# All devbox commands are deferred to postCreateCommand for Codespaces compatibility.
+# The Nix package resolution fails during Docker build in resource-constrained environments.

.devcontainer/devcontainer.json

@@ -4,12 +4,31 @@
     "dockerfile": "./Dockerfile",
     "context": ".."
   },
-  "postCreateCommand": "bin/ensure-root-env-file && devbox run setup",
+  "postCreateCommand": "bin/ensure-root-env-file && devbox shellenv --init-hook >> ~/.profile && devbox run setup",
+  "postStartCommand": "devbox services up --background",
+  "forwardPorts": [5173, 8081, 8083, 4000],
+  "portsAttributes": {
+    "5173": {
+      "label": "Frontend",
+      "onAutoForward": "openBrowserOnce"
+    },
+    "8081": {
+      "label": "Builder API"
+    },
+    "8083": {
+      "label": "Library API"
+    },
+    "4000": {
+      "label": "Firebase Emulator UI"
+    }
+  },
   "customizations": {
     "vscode": {
       "settings": {},
       "extensions": [
-        "jetpack-io.devbox"
+        "jetpack-io.devbox",
+        "kie-group.dmn-vscode-extension",
+        "esbenp.prettier-vscode"
       ]
     }
   },