feat: Upgrade to Astro with full PDPA compliance

PDPA Features:
✅ Cookie consent banner
✅ Consent logging API
✅ Admin dashboard
✅ Privacy Policy
✅ Terms & Conditions

Technical:
✅ Astro 5.x + Tailwind v4
✅ Docker on port 80
✅ SQLite database
✅ 15 pages built

Ready for Easypanel deployment.

node_modules/mdn-data/css/functions.schema.json

@@ -0,0 +1,45 @@
+{
+  "definitions": {
+    "status": {
+      "enum": [
+        "standard",
+        "nonstandard",
+        "experimental",
+        "obsolete"
+      ]
+    },
+    "mdn_url": {
+      "type": "string",
+      "pattern": "^https://developer.mozilla.org/docs/"
+    }
+  },
+  "type": "object",
+  "additionalProperties": {
+    "type": "object",
+    "additionalProperties": false,
+    "required": [
+      "syntax",
+      "groups",
+      "status"
+    ],
+    "properties": {
+      "syntax": {
+        "type": "string"
+      },
+      "groups": {
+        "type": "array",
+        "minitems": 1,
+        "uniqueItems": true,
+        "items": {
+          "$ref": "definitions.json#/groupList"
+        }
+      },
+      "status": {
+        "$ref": "#/definitions/status"
+      },
+      "mdn_url": {
+        "$ref": "#/definitions/mdn_url"
+      }
+    }
+  }
+}