♻️ 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/zod-to-json-schema/dist/esm/parsers/tuple.js

@@ -1,32 +0,0 @@
-import { parseDef } from "../parseDef.js";
-export function parseTupleDef(def, refs) {
-    if (def.rest) {
-        return {
-            type: "array",
-            minItems: def.items.length,
-            items: def.items
-                .map((x, i) => parseDef(x._def, {
-                ...refs,
-                currentPath: [...refs.currentPath, "items", `${i}`],
-            }))
-                .reduce((acc, x) => (x === undefined ? acc : [...acc, x]), []),
-            additionalItems: parseDef(def.rest._def, {
-                ...refs,
-                currentPath: [...refs.currentPath, "additionalItems"],
-            }),
-        };
-    }
-    else {
-        return {
-            type: "array",
-            minItems: def.items.length,
-            maxItems: def.items.length,
-            items: def.items
-                .map((x, i) => parseDef(x._def, {
-                ...refs,
-                currentPath: [...refs.currentPath, "items", `${i}`],
-            }))
-                .reduce((acc, x) => (x === undefined ? acc : [...acc, x]), []),
-        };
-    }
-}