🧹 chore(public): regenerate 14 boilerplate ZIPs + drop legacy files

Rebuilds the downloadable boilerplate ZIPs served from public/ so they
ship with WPBones v2.0.3 (wpbones/WPBones@v2.0.3). Also cleans up
legacy artefacts that predate the per-boilerplate layout.

### ZIPs

Regenerated all 14 WPKirk-*-Boilerplate ZIPs via
`scripts/regenerate-zips.sh` → `php bones deploy --wp --pkgm=yarn`
with folder-wrapper layout for WordPress Playground and plugin
install compatibility. Sizes range from ~524KB (simple templates)
to ~2.6MB (Database, with Eloquent vendor bundle).

### Legacy files removed

- public/wpkirk.zip — "demo" generic, superseded by per-theme zips
- public/wpkirk-demo.zip — ditto
- public/wpkirk-demo.json — Playground blueprint for the generic
  demo, superseded by per-theme blueprints
- public/blueprint.json — default Playground blueprint that pointed
  at wpkirk.zip; no longer referenced

### Callers updated

- content/core-concepts/options.mdx → the "Demo Plugin in action"
  card now points to wpkirk-options-boilerplate (matching the page
  topic) instead of the generic wpkirk-demo.
- components/Footer/resources.ts → the "WP Bones Demo in action"
  footer link now points to wpkirk-boilerplate (the main boilerplate
  as generic demo) instead of wpkirk-demo.json.
- components/Footer/resources.ts → removed the "Roadmap" entry.

Author: gfazioli

components/Footer/resources.ts

@@ -2,7 +2,7 @@ export const resources = [
   {
     key: 'demo',
     title: 'WP Bones Demo in action',
-    href: 'https://playground.wordpress.net/?blueprint-url=https://www.wpbones.com/wpkirk-demo.json',
+    href: 'https://playground.wordpress.net/?blueprint-url=https://www.wpbones.com/wpkirk-boilerplate.json',
   },
   {
     key: 'wpbones-raycast',
@@ -20,12 +20,6 @@ export const resources = [
     title: 'Discussions',
     href: 'https://github.com/wpbones/WPBones/discussions',
   },
-  {
-    key: 'roadmap',
-    title: 'Roadmap',
-    href: 'https://github.com/orgs/wpbones/projects/4',
-    new: true,
-  },
   {
     key: 'wpbones-news',
     title: 'WP Bones News',

content/core-concepts/options.mdx

@@ -234,8 +234,8 @@ $result = MyPluginGlobalFunction()->options->toArray();
 
 ## See Options in action
 
-You can see the options in actions in the [WP Kirk](https://github.com/wpbones/WPKirk) Demo plugin.
+You can see the options in action in the [WPKirk-Options-Boilerplate](https://github.com/wpbones/WPKirk-Options-Boilerplate) sample plugin.
 
 <Cards num={1}>
-  <Cards.Card icon={<IconBrandWordpress color="#74C0FC" />} title="Demo Plugin in action" target="_blank" href="https://playground.wordpress.net/?blueprint-url=https://www.wpbones.com/wpkirk-demo.json" />
+  <Cards.Card icon={<IconBrandWordpress color="#74C0FC" />} title="Try it in WordPress Playground" target="_blank" href="https://playground.wordpress.net/?blueprint-url=https://www.wpbones.com/wpkirk-options-boilerplate.json" />
 </Cards>