♻️ 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/micromark-util-symbol/lib/constants.d.ts

@@ -1,37 +0,0 @@
-export namespace constants {
-    let attentionSideAfter: 2;
-    let attentionSideBefore: 1;
-    let atxHeadingOpeningFenceSizeMax: 6;
-    let autolinkDomainSizeMax: 63;
-    let autolinkSchemeSizeMax: 32;
-    let cdataOpeningString: "CDATA[";
-    let characterGroupPunctuation: 2;
-    let characterGroupWhitespace: 1;
-    let characterReferenceDecimalSizeMax: 7;
-    let characterReferenceHexadecimalSizeMax: 6;
-    let characterReferenceNamedSizeMax: 31;
-    let codeFencedSequenceSizeMin: 3;
-    let contentTypeContent: "content";
-    let contentTypeDocument: "document";
-    let contentTypeFlow: "flow";
-    let contentTypeString: "string";
-    let contentTypeText: "text";
-    let hardBreakPrefixSizeMin: 2;
-    let htmlBasic: 6;
-    let htmlCdata: 5;
-    let htmlComment: 2;
-    let htmlComplete: 7;
-    let htmlDeclaration: 4;
-    let htmlInstruction: 3;
-    let htmlRawSizeMax: 8;
-    let htmlRaw: 1;
-    let linkResourceDestinationBalanceMax: 32;
-    let linkReferenceSizeMax: 999;
-    let listItemValueSizeMax: 10;
-    let numericBaseDecimal: 10;
-    let numericBaseHexadecimal: 16;
-    let tabSize: 4;
-    let thematicBreakMarkerCountMin: 3;
-    let v8MaxSafeChunkSize: 10000;
-}
-//# sourceMappingURL=constants.d.ts.map