♻️ 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/parse5/dist/cjs/common/unicode.d.ts

@@ -1,42 +0,0 @@
-export declare const REPLACEMENT_CHARACTER = "\uFFFD";
-export declare enum CODE_POINTS {
-    EOF = -1,
-    NULL = 0,
-    TABULATION = 9,
-    CARRIAGE_RETURN = 13,
-    LINE_FEED = 10,
-    FORM_FEED = 12,
-    SPACE = 32,
-    EXCLAMATION_MARK = 33,
-    QUOTATION_MARK = 34,
-    AMPERSAND = 38,
-    APOSTROPHE = 39,
-    HYPHEN_MINUS = 45,
-    SOLIDUS = 47,
-    DIGIT_0 = 48,
-    DIGIT_9 = 57,
-    SEMICOLON = 59,
-    LESS_THAN_SIGN = 60,
-    EQUALS_SIGN = 61,
-    GREATER_THAN_SIGN = 62,
-    QUESTION_MARK = 63,
-    LATIN_CAPITAL_A = 65,
-    LATIN_CAPITAL_Z = 90,
-    RIGHT_SQUARE_BRACKET = 93,
-    GRAVE_ACCENT = 96,
-    LATIN_SMALL_A = 97,
-    LATIN_SMALL_Z = 122
-}
-export declare const SEQUENCES: {
-    DASH_DASH: string;
-    CDATA_START: string;
-    DOCTYPE: string;
-    SCRIPT: string;
-    PUBLIC: string;
-    SYSTEM: string;
-};
-export declare function isSurrogate(cp: number): boolean;
-export declare function isSurrogatePair(cp: number): boolean;
-export declare function getSurrogatePairCodePoint(cp1: number, cp2: number): number;
-export declare function isControlCodePoint(cp: number): boolean;
-export declare function isUndefinedCodePoint(cp: number): boolean;