♻️ 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/set.js

@@ -1,20 +0,0 @@
-import { setResponseValueAndErrors } from "../errorMessages.js";
-import { parseDef } from "../parseDef.js";
-export function parseSetDef(def, refs) {
-    const items = parseDef(def.valueType._def, {
-        ...refs,
-        currentPath: [...refs.currentPath, "items"],
-    });
-    const schema = {
-        type: "array",
-        uniqueItems: true,
-        items,
-    };
-    if (def.minSize) {
-        setResponseValueAndErrors(schema, "minItems", def.minSize.value, def.minSize.message, refs);
-    }
-    if (def.maxSize) {
-        setResponseValueAndErrors(schema, "maxItems", def.maxSize.value, def.maxSize.message, refs);
-    }
-    return schema;
-}