revert: Remove pre-built CSS and restore build step

package.json

@@ -7,7 +7,7 @@
     "start": "cd server && node index.js",
     "dev:server": "NODE_ENV=development node -r dotenv/config --env-file=.env server/index.js",
     "dev:css": "./node_modules/.bin/tailwindcss -c ./src/tailwind.config.js -i ./src/index.css -o ./src/public/output.css --watch",
-    "build:css": "NODE_ENV=development ./node_modules/.bin/tailwindcss -c ./src/tailwind.config.js -i ./src/index.css -o ./src/public/output.css",
+    "build:css": "npx @tailwindcss/cli -i ./src/index.css -o ./src/public/output.css --minify",
     "dev": "concurrently \"npm:dev:server\" \"npm:dev:css\"",
     "test": "echo \"Error: no test specified\" && exit 1"
   },

scripts/install-pulse.sh

@@ -249,15 +249,14 @@ perform_update() {
 
     # Build CSS after dependencies
     print_info "Building CSS assets..."
-    # --- SKIPPING CSS BUILD - Using pre-built from repo ---
-    # if ! npm run build:css > /dev/null 2>&1; then
-    #     print_error "Failed to build CSS assets."
-    #     # Potentially return 1 here if CSS build failure is critical
-    #     return 1
-    # else
-    #     print_success "CSS assets built."
-    # fi
-    print_info "(Skipping CSS build step - using pre-built CSS from repository)"
+    # --- RESTORED CSS BUILD --- 
+    if ! npm run build:css > /dev/null 2>&1; then
+        print_error "Failed to build CSS assets."
+        # Potentially return 1 here if CSS build failure is critical
+        return 1
+    else
+        print_success "CSS assets built."
+    fi
 
     set_permissions # Ensure permissions are correct after update and build
 
@@ -832,14 +831,13 @@ case "$INSTALL_MODE" in
             # Build CSS after dependencies
             print_info "Building CSS assets..."
             cd "$PULSE_DIR" || { print_error "Failed to cd to $PULSE_DIR before building CSS"; exit 1; }
-            # --- SKIPPING CSS BUILD - Using pre-built from repo ---
-            # if ! npm run build:css > /dev/null 2>&1; then
-            #     print_error "Failed to build CSS assets."
-            #     exit 1
-            # else
-            #     print_success "CSS assets built."
-            # fi
-            print_info "(Skipping CSS build step - using pre-built CSS from repository)"
+            # --- RESTORED CSS BUILD --- 
+            if ! npm run build:css > /dev/null 2>&1; then
+                print_error "Failed to build CSS assets."
+                exit 1
+            else
+                print_success "CSS assets built."
+            fi
              # Now cd back if needed, though subsequent steps might need PULSE_DIR
              # cd ..