Website restoration: Node.js backend, restored design, GitHub sync disabled

- Replaced broken .NET backend with Node.js/Express
- Restored original website design with purple gradient hero
- Updated homepage and shop pages with Bootstrap 5 responsive design
- Disabled GitHub remote sync - all code now stored locally only
- Created backup scripts and documentation
- All changes saved on Ubuntu server at /var/www/SkyArtShop

backend/node_modules/string_decoder/.travis.yml

@@ -0,0 +1,50 @@
+sudo: false
+language: node_js
+before_install:
+  - npm install -g npm@2
+  - test $NPM_LEGACY && npm install -g npm@latest-3 || npm install npm -g
+notifications:
+  email: false
+matrix:
+  fast_finish: true
+  include:
+  - node_js: '0.8'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.10'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.11'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.12'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 1
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 2
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 3
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 4
+    env: TASK=test
+  - node_js: 5
+    env: TASK=test
+  - node_js: 6
+    env: TASK=test
+  - node_js: 7
+    env: TASK=test
+  - node_js: 8
+    env: TASK=test
+  - node_js: 9
+    env: TASK=test