♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

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✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/prismjs/components/prism-cypher.min.js

@@ -1 +0,0 @@
-Prism.languages.cypher={comment:/\/\/.*/,string:{pattern:/"(?:[^"\\\r\n]|\\.)*"|'(?:[^'\\\r\n]|\\.)*'/,greedy:!0},"class-name":{pattern:/(:\s*)(?:\w+|`(?:[^`\\\r\n])*`)(?=\s*[{):])/,lookbehind:!0,greedy:!0},relationship:{pattern:/(-\[\s*(?:\w+\s*|`(?:[^`\\\r\n])*`\s*)?:\s*|\|\s*:\s*)(?:\w+|`(?:[^`\\\r\n])*`)/,lookbehind:!0,greedy:!0,alias:"property"},identifier:{pattern:/`(?:[^`\\\r\n])*`/,greedy:!0},variable:/\$\w+/,keyword:/\b(?:ADD|ALL|AND|AS|ASC|ASCENDING|ASSERT|BY|CALL|CASE|COMMIT|CONSTRAINT|CONTAINS|CREATE|CSV|DELETE|DESC|DESCENDING|DETACH|DISTINCT|DO|DROP|ELSE|END|ENDS|EXISTS|FOR|FOREACH|IN|INDEX|IS|JOIN|KEY|LIMIT|LOAD|MANDATORY|MATCH|MERGE|NODE|NOT|OF|ON|OPTIONAL|OR|ORDER(?=\s+BY)|PERIODIC|REMOVE|REQUIRE|RETURN|SCALAR|SCAN|SET|SKIP|START|STARTS|THEN|UNION|UNIQUE|UNWIND|USING|WHEN|WHERE|WITH|XOR|YIELD)\b/i,function:/\b\w+\b(?=\s*\()/,boolean:/\b(?:false|null|true)\b/i,number:/\b(?:0x[\da-fA-F]+|\d+(?:\.\d+)?(?:[eE][+-]?\d+)?)\b/,operator:/:|<--?|--?>?|<>|=~?|[<>]=?|[+*/%^|]|\.\.\.?/,punctuation:/[()[\]{},;.]/};