fix: MIME type dynamique au lieu de 'image/png' hardcodé (causait 500 sur JPEG)

src/frontend/changelog.html

@@ -3,7 +3,7 @@
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>Changelog — imagod-web v0.2.0+build.27-62e63e4-dirty</title>
+<title>Changelog — imagod-web v0.2.0+build.28-42eff29-dirty</title>
 <link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🖼️</text></svg>">
 <style>
 * { margin:0; padding:0; box-sizing:border-box; }
@@ -37,7 +37,7 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 </head>
 <body>
 <header>
-  <h1>📋 imagod-web <span class="version-badge">v0.2.0+build.27-62e63e4-dirty</span></h1>
+  <h1>📋 imagod-web <span class="version-badge">v0.2.0+build.28-42eff29-dirty</span></h1>
   <nav>
     <a href="/">🖼️ Galerie</a>
     <a href="/changelog" class="active">📋 Changelog</a>
@@ -107,6 +107,6 @@ footer { text-align:center; color:#484f58; font-size:0.8rem; padding:2rem; }
 <h2>Légende des tags</h2>
 
 </main>
-<footer>imagod-web v0.2.0+build.27-62e63e4-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
+<footer>imagod-web v0.2.0+build.28-42eff29-dirty — <a href="https://git.dracodev.net/Projets/imagod-web">Gitea</a></footer>
 </body>
 </html>