docs: archive old screenshots and update Caddyfile configuration

- Moved outdated screenshots to the `archive` directory for better organization.
- Refined Caddyfile formatting and improved routing logic, including API proxy and SPA fallback behavior.
- Added new screenshots for Pangolin web app settings.

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

config/docker/caddy/web-app/Caddyfile

@@ -1,11 +1,15 @@
+# Caddyfile
+
 {
-# Global Options
+# Global options
   servers {
             metrics
           }
 }
 
-:4000 {
+# Define the site
+
+app.mo-code.at:4000, :4000 {
 # Root directory for static files
   root * /usr/share/caddy
 
@@ -30,13 +34,10 @@
           }
   header @static Cache-Control "public, max-age=31536000, immutable"
 
-# Security Headers (Future Proofing for Wasm)
+# Security Headers
   header {
-         # Cross-Origin Isolation for SharedArrayBuffer (required for some Wasm features)
            Cross-Origin-Opener-Policy "same-origin"
            Cross-Origin-Embedder-Policy "require-corp"
-
-         # Standard Security Headers
            X-Content-Type-Options "nosniff"
            X-Frame-Options "DENY"
            Referrer-Policy "strict-origin-when-cross-origin"
@@ -45,11 +46,9 @@
 
 # --- ROUTING LOGIC ---
 
-# 1. API Proxy (Priority 1)
+# 1. API Proxy
   handle /api/* {
-                  reverse_proxy api-gateway:8081 {
-                                                   header_up Host {upstream_hostport}
-                                                 }
+                  reverse_proxy api-gateway:8081
                 }
 
 # 2. Health Check
@@ -57,12 +56,9 @@
                    respond "healthy" 200
                  }
 
-# 3. Static Files & SPA Fallback (Stable Config)
+# 3. Static Files & SPA Fallback
   handle {
-         # Serve static files if they exist
-           file_server
-
-         # SPA Routing: Fallback to index.html for non-existent files
            try_files {path} /index.html
+           file_server
          }
 }