♻️ 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

✅ 11 pages built successfully
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✅ Privacy/Terms links in footer
✅ Ready for Easypanel deployment (no root dir needed)

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

dealplustech-astro/node_modules/@shikijs/langs/dist/sparql.mjs

@@ -1,8 +0,0 @@
-import turtle from './turtle.mjs'
-
-const lang = Object.freeze(JSON.parse("{\"displayName\":\"SPARQL\",\"fileTypes\":[\"rq\",\"sparql\",\"sq\"],\"name\":\"sparql\",\"patterns\":[{\"include\":\"source.turtle\"},{\"include\":\"#query-keyword-operators\"},{\"include\":\"#functions\"},{\"include\":\"#variables\"},{\"include\":\"#expression-operators\"}],\"repository\":{\"expression-operators\":{\"match\":\"\\\\|\\\\||&&|=|!=|[<>]|<=|>=|[-!*+/?^|]\",\"name\":\"support.class.sparql\"},\"functions\":{\"match\":\"\\\\b(?i:concat|regex|asc|desc|bound|isiri|isuri|isblank|isliteral|isnumeric|str|lang|datatype|sameterm|langmatches|avg|count|group_concat|separator|max|min|sample|sum|iri|uri|bnode|strdt|uuid|struuid|strlang|strlen|substr|ucase|lcase|strstarts|strends|contains|strbefore|strafter|encode_for_uri|replace|abs|round|ceil|floor|rand|now|year|month|day|hours|minutes|seconds|timezone|tz|md5|sha1|sha256|sha384|sha512|coalesce|if)\\\\b\",\"name\":\"support.function.sparql\"},\"query-keyword-operators\":{\"match\":\"\\\\b(?i:define|select|distinct|reduced|from|named|construct|ask|describe|where|graph|having|bind|as|filter|optional|union|order|by|group|limit|offset|values|insert data|delete data|with|delete|insert|clear|silent|default|all|create|drop|copy|move|add|to|using|service|not exists|exists|not in|in|minus|load)\\\\b\",\"name\":\"keyword.control.sparql\"},\"variables\":{\"match\":\"(?<!\\\\w)[$?]\\\\w+\",\"name\":\"constant.variable.sparql.turtle\"}},\"scopeName\":\"source.sparql\",\"embeddedLangs\":[\"turtle\"]}"))
-
-export default [
-...turtle,
-lang
-]