refactor(preact): switch from vendored globals to bundled node_modules approach

- Add preact dependency to all 6 starter package.json files for proper js.Build resolution
- Use automatic JSX runtime (JSX: "automatic", JSXImportSource: "preact") in libraries.html
- Restore proper ES module imports in hero/client.jsx and Icon.jsx components
- Remove vendored preact script loading since preact is now bundled via js.Build
- Fixes CI build failures with "Could not resolve preact/jsx-runtime" errors
- Provides cleaner, more standard JS tooling for users extending with custom components

BREAKING CHANGE: Starters now require `preact` in `package.json`to resolve preact dependency before hugo build

modules/blox-tailwind/blox/hero/client.jsx

@@ -3,7 +3,7 @@
  * Uses the shared component for consistency
  */
 
-// Use global preact (loaded via script tag) with classic JSX transform
+import {render} from "preact";
 import {HeroBlock} from "./component.jsx";
 
 // Render function - immediately renders Hero components
@@ -18,7 +18,7 @@ function renderHeroBlocks() {
         const props = JSON.parse(propsData);
 
         // Render the Preact component into the container
-        preact.render(<HeroBlock {...props} />, block);
+        render(<HeroBlock {...props} />, block);
         console.debug(`✓ Hero block "${block.id}" rendered with Preact`);
       } catch (error) {
         console.error(`Failed to render Hero block "${block.id}":`, error);

modules/blox-tailwind/blox/shared/js/components/Icon.jsx

@@ -1,4 +1,4 @@
-// Use classic JSX transform with global preact; no direct import
+import {h} from "preact";
 
 /**
  * Icon component

modules/blox-tailwind/layouts/_partials/libraries.html

@@ -3,19 +3,7 @@
 {{ if .Page.Store.Get "needs_preact" }}
   {{ $preact_blocks := .Page.Store.Get "preact_blocks" | default slice }}
   
-  {{/* Load Preact core library */}}
-  {{ $preact_core := resources.Get "dist/lib/preact/preact.min.js" }}
-  {{ if $preact_core }}
-    {{ $preact_core = $preact_core | resources.Fingerprint "sha256" }}
-    <script src="{{ $preact_core.RelPermalink }}" integrity="{{ $preact_core.Data.Integrity }}"></script>
-    
-    {{/* Publish the source map so the browser can load it at the expected path */}}
-    {{ $preact_map := resources.Get "dist/lib/preact/preact.min.js.map" }}
-    {{ if $preact_map }}
-      {{ $preact_map.Publish }}
-    {{ end }}
-    
-  {{ end }}
+  {{/* Preact is now bundled with each template via js.Build and node_modules */}}
   
   {{/* Build and load each Preact block's client script */}}
   {{ range $block_type := $preact_blocks }}
@@ -26,9 +14,8 @@
       {{/* Build the client-side JSX using Hugo's official integration */}}
       {{ $jsx_opts := dict 
         "targetPath" (printf "assets/js/preact-built/%s.js" $block_type)
-        "JSX" "transform"
-        "JSXFactory" "preact.h"
-        "JSXFragment" "preact.Fragment"
+        "JSX" "automatic"
+        "JSXImportSource" "preact"
         "format" "iife"
         "minify" hugo.IsProduction
         "sourceMap" (cond hugo.IsDevelopment "external" "")

starters/academic-cv/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }

starters/blog/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }

starters/documentation/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }

starters/landing-page/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }

starters/link-in-bio/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }

starters/resume/package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@tailwindcss/cli": "^4.1.12",
     "@tailwindcss/typography": "^0.5.10",
+    "preact": "^10.27.2",
     "tailwindcss": "^4.1.12"
   }
 }