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/.bin/color-support

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+../color-support/bin.js

backend/node_modules/.bin/ejs

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+../ejs/bin/cli.js

backend/node_modules/.bin/jake

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+../jake/bin/cli.js

backend/node_modules/.bin/mime

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+../mime/cli.js

backend/node_modules/.bin/mkdirp

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+../mkdirp/bin/cmd.js

backend/node_modules/.bin/node-pre-gyp

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+../@mapbox/node-pre-gyp/bin/node-pre-gyp

backend/node_modules/.bin/nopt

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+../nopt/bin/nopt.js

backend/node_modules/.bin/rimraf

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+../rimraf/bin.js

backend/node_modules/.bin/semver

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+../semver/bin/semver.js

backend/node_modules/.bin/uuid

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+../uuid/dist/bin/uuid