feat(viewer): couverture pretty print tous langages code (aliases hljs, langues hors bundle common, Dockerfile/Makefile)

frontend/index.html

@@ -88,6 +88,17 @@
         />
         <!-- defer: ne bloque pas le premier paint (le splash inline s'affiche immédiatement) -->
         <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
+        <!-- Langues highlight.js hors bundle "common" (enregistrement auto apres le core) -->
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/dockerfile.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/powershell.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/dos.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/cmake.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/dart.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/elixir.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/haskell.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/nginx.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/http.min.js"></script>
+        <script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/plaintext.min.js"></script>
         <script defer src="https://unpkg.com/[email protected]/dist/umd/lucide.min.js"></script>
         <script defer src="https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.min.js"></script>
         <script type="importmap">

frontend/js/utils.js

@@ -259,6 +259,28 @@ function safeHighlight(block) {
   if (block.className && block.className.indexOf('language-mermaid') !== -1) return;
   if (typeof hljs !== "undefined" && hljs.highlightElement) {
     try {
+      // Alias pour les extensions que highlight.js (bundle common) ne connaît pas
+      const PP_LANG_ALIAS = {
+        md: "markdown", markdown: "markdown", rst: "plaintext",
+        pl: "perl", lua: "lua", dart: "dart",
+        vue: "html", svelte: "html", astro: "html",
+        graphql: "graphql", prisma: "sql", proto: "c",
+        vb: "basic", vba: "basic", asm: "x86asm",
+        tf: "haskell", gradle: "groovy", groovy: "groovy",
+        properties: "ini", gitignore: "plaintext", hosts: "ini",
+        fish: "bash", ksh: "bash", systemd: "ini", batch: "dos", bat: "dos",
+        shell: "bash", golang: "go", toml: "ini", avsc: "json", jsonc: "json", json5: "json",
+      };
+      const m = /\blanguage-([\w-]+)/.exec(block.className || "");
+      if (m) {
+        const lang = m[1];
+        const alias = PP_LANG_ALIAS[lang];
+        if (alias && hljs.getLanguage && !hljs.getLanguage(lang) && hljs.getLanguage(alias)) {
+          block.className = block.className.replace("language-" + lang, "language-" + alias);
+        } else if (hljs.getLanguage && !hljs.getLanguage(lang) && !hljs.getLanguage(alias || "")) {
+          block.className = block.className.replace("language-" + lang, "language-plaintext");
+        }
+      }
       hljs.highlightElement(block);
     } catch (e) {
       /* CDN not loaded */

frontend/js/viewer.js

@@ -506,12 +506,10 @@ function fallbackTokenize(text) {
   return out;
 }
 
-// Applique la coloration: hljs si le langage est connu et que des tokens
-// sortent, sinon fallback regex générique.
+// Applique la coloration: hljs (avec aliases de languages) si des tokens
+// sortent, sinon fallback regex generique.
 function applyPrettyHighlight(codeEl, lang, text) {
-  if (typeof hljs !== "undefined" && lang !== "plaintext") {
-    try { hljs.highlightElement(codeEl); } catch (_) { /* CDN pas charge */ }
-  }
+  safeHighlight(codeEl); // gerne les alias language-xxx inconnus de hljs
   const tokens = codeEl.querySelectorAll('[class^="hljs-"]').length;
   if (!tokens && text.trim()) {
     codeEl.innerHTML = fallbackTokenize(text);

frontend/popout.html

@@ -43,6 +43,11 @@
   <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github-dark.min.css" id="hljs-theme-dark">
   <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github.min.css" id="hljs-theme-light" disabled>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/dockerfile.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/powershell.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/dos.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/cmake.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/languages/plaintext.min.js"></script>
   <script src="https://unpkg.com/[email protected]/dist/umd/lucide.min.js"></script>
   <script type="importmap">
     {