♻️ 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/astro/dist/transitions/index.js

@@ -1,70 +0,0 @@
-import { createAnimationScope } from "../runtime/server/transition.js";
-const EASE_IN_OUT_QUART = "cubic-bezier(0.76, 0, 0.24, 1)";
-function slide({
-  duration
-} = {}) {
-  return {
-    forwards: {
-      old: [
-        {
-          name: "astroFadeOut",
-          duration: duration ?? "90ms",
-          easing: EASE_IN_OUT_QUART,
-          fillMode: "both"
-        },
-        {
-          name: "astroSlideToLeft",
-          duration: duration ?? "220ms",
-          easing: EASE_IN_OUT_QUART,
-          fillMode: "both"
-        }
-      ],
-      new: [
-        {
-          name: "astroFadeIn",
-          duration: duration ?? "210ms",
-          easing: EASE_IN_OUT_QUART,
-          delay: duration ? void 0 : "30ms",
-          fillMode: "both"
-        },
-        {
-          name: "astroSlideFromRight",
-          duration: duration ?? "220ms",
-          easing: EASE_IN_OUT_QUART,
-          fillMode: "both"
-        }
-      ]
-    },
-    backwards: {
-      old: [{ name: "astroFadeOut" }, { name: "astroSlideToRight" }],
-      new: [{ name: "astroFadeIn" }, { name: "astroSlideFromLeft" }]
-    }
-  };
-}
-function fade({
-  duration
-} = {}) {
-  const anim = {
-    old: {
-      name: "astroFadeOut",
-      duration: duration ?? 180,
-      easing: EASE_IN_OUT_QUART,
-      fillMode: "both"
-    },
-    new: {
-      name: "astroFadeIn",
-      duration: duration ?? 180,
-      easing: EASE_IN_OUT_QUART,
-      fillMode: "both"
-    }
-  };
-  return {
-    forwards: anim,
-    backwards: anim
-  };
-}
-export {
-  createAnimationScope,
-  fade,
-  slide
-};