fix(server/esbuild): assets not copied in prod build

.nxignore

@@ -1,2 +1,6 @@
 _regroup
 _regroup_monorepo
+
+# Asset copying respects .gitignore / .nxignore for some reason.
+# See https://github.com/nrwl/nx/issues/20309 
+!dist

apps/server/package.json

@@ -188,13 +188,6 @@
           "outputFileName": "main.js",
           "tsConfig": "apps/server/tsconfig.app.json",
           "platform": "node",
-          "assets": [
-            {
-              "glob": "**/*",
-              "input": "apps/server/src/assets",
-              "output": "assets"
-            }
-          ],
           "format": [
             "esm"
           ],
@@ -202,10 +195,29 @@
         },
         "configurations": {
           "development": {
-            "minify": false
+            "minify": false,
+            "assets": [
+              {
+                "glob": "**/*",
+                "input": "apps/server/src/assets",
+                "output": "assets"
+              }
+            ]
           },
           "production": {
-            "minify": true
+            "minify": true,
+            "assets": [
+              {
+                "glob": "**/*",
+                "input": "apps/server/src/assets",
+                "output": "assets"
+              },
+              {
+                "glob": "**/*",
+                "input": "apps/client/dist",
+                "output": "public"
+              }
+            ]
           }
         }
       }