feat: add Gotify Commander project + fix chat avatar + bold footer

- New project: Gotify Commander — bidirectional Gotify plugin (Go)
- Fix chat avatar: properly cropped square thumbnail (was squished)
- Footer text: bold + white + text-shadow for readability over bg photos

static/css/03-components/_experience.css

@@ -453,6 +453,7 @@ footer {
     padding: 2rem;
     color: rgba(255,255,255,0.95);
     font-size: 0.85rem;
+    font-weight: 700;
     text-shadow: 0 1px 4px rgba(0,0,0,0.6);
 }
 

static/css/03-components/_projects.css

@@ -150,6 +150,7 @@ footer {
     padding: 2rem;
     color: rgba(255,255,255,0.95);
     font-size: 0.85rem;
+    font-weight: 700;
     text-shadow: 0 1px 4px rgba(0,0,0,0.6);
 }