♻️ 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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✅ Ready for Easypanel deployment (no root dir needed)

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

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

@@ -1,12 +0,0 @@
-import typescript from './typescript.mjs'
-import html from './html.mjs'
-import html_derivative from './html-derivative.mjs'
-
-const lang = Object.freeze(JSON.parse("{\"displayName\":\"Edge\",\"injections\":{\"text.html.edge - (meta.embedded | meta.tag | comment.block.edge), L:(text.html.edge meta.tag - (comment.block.edge | meta.embedded.block.edge)), L:(source.ts.embedded.html - (comment.block.edge | meta.embedded.block.edge))\":{\"patterns\":[{\"include\":\"#comment\"},{\"include\":\"#escapedMustache\"},{\"include\":\"#safeMustache\"},{\"include\":\"#mustache\"},{\"include\":\"#nonSeekableTag\"},{\"include\":\"#tag\"}]}},\"name\":\"edge\",\"patterns\":[{\"include\":\"text.html.basic\"},{\"include\":\"text.html.derivative\"}],\"repository\":{\"comment\":{\"begin\":\"\\\\{\\\\{--\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.begin.edge\"}},\"end\":\"--}}\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.end.edge\"}},\"name\":\"comment.block\"},\"escapedMustache\":{\"begin\":\"@\\\\{\\\\{\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.begin.edge\"}},\"end\":\"}}\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.definition.comment.end.edge\"}},\"name\":\"comment.block\"},\"mustache\":{\"begin\":\"\\\\{\\\\{\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.mustache.begin\"}},\"end\":\"}}\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.mustache.end\"}},\"name\":\"meta.embedded.block.javascript\",\"patterns\":[{\"include\":\"source.ts#expression\"}]},\"nonSeekableTag\":{\"captures\":{\"2\":{\"name\":\"support.function.edge\"}},\"match\":\"^(\\\\s*)((@{1,2})(!)?([.A-Z_a-z]+))(~)?$\",\"name\":\"meta.embedded.block.javascript\",\"patterns\":[{\"include\":\"source.ts#expression\"}]},\"safeMustache\":{\"begin\":\"\\\\{\\\\{\\\\{\",\"beginCaptures\":{\"0\":{\"name\":\"punctuation.mustache.begin\"}},\"end\":\"}}}\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.mustache.end\"}},\"name\":\"meta.embedded.block.javascript\",\"patterns\":[{\"include\":\"source.ts#expression\"}]},\"tag\":{\"begin\":\"^(\\\\s*)((@{1,2})(!)?([.A-Z_a-z]+)(\\\\s{0,2}))(\\\\()\",\"beginCaptures\":{\"2\":{\"name\":\"support.function.edge\"},\"7\":{\"name\":\"punctuation.paren.open\"}},\"end\":\"\\\\)\",\"endCaptures\":{\"0\":{\"name\":\"punctuation.paren.close\"}},\"name\":\"meta.embedded.block.javascript\",\"patterns\":[{\"include\":\"source.ts#expression\"}]}},\"scopeName\":\"text.html.edge\",\"embeddedLangs\":[\"typescript\",\"html\",\"html-derivative\"]}"))
-
-export default [
-...typescript,
-...html,
-...html_derivative,
-lang
-]