Add initial setup for Gallus_Pub_v1 with Astro

This commit includes a README detailing the Astro starter kit setup and an autogenerated package-lock.json. The setup uses the minimal Astro template, with dependencies like Astro 5.11.0 installed to kickstart the project.

Gallus_Pub_v1/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "gallus-pub-v1",
+  "type": "module",
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "astro dev",
+    "build": "astro build",
+    "preview": "astro preview",
+    "astro": "astro"
+  },
+  "dependencies": {
+    "astro": "^5.11.0"
+  }
+}