feat: Fix product tables and responsive fonts

- Add product detail page ([slug].astro) with table rendering
- Display productTables from site-config.ts on product pages
- Add responsive font scaling for large screens (1280px+)
- Base font scales from 16px to 24px on 4K displays
- All text elements use responsive sizing (md/lg/xl breakpoints)
- Tables styled with green headers and alternating rows
- Add comprehensive documentation (FIXES_SUMMARY.md)

Fixes:
- Product specification tables now visible on product pages
- Font too small on large screens - now responsive

dealplustech-astro/easypanel.config.json

@@ -0,0 +1,16 @@
+{
+  "easypanel": {
+    "url": "",
+    "project": "customerwebsite",
+    "app": {
+      "name": "dealplustech-astro",
+      "port": 4321,
+      "image": "dealplustech-astro:latest"
+    },
+    "env": {
+      "NODE_ENV": "production",
+      "PORT": "4321",
+      "HOST": "0.0.0.0"
+    }
+  }
+}