0.16.1-1 Fix registry Makemkv

Per CAA API docs, front-250 URLs are predictable from mbId. Remove the
cover-art-archive.front check (unreliable in search results) and always
construct the URL. A CoverThumb component handles 404s gracefully.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

install.sh

@@ -446,9 +446,7 @@ install_makemkv() {
 sync_makemkv_beta_key() {
   header "MakeMKV Betakey synchronisieren"
 
-  local backend_base_url="http://127.0.0.1:${BACKEND_PORT}/api"
+  local backend_settings_url="http://127.0.0.1:${BACKEND_PORT}/settings"
-  local backend_health_url="${backend_base_url}/health"
-  local backend_settings_url="${backend_base_url}/settings"
   local beta_api_url="https://cable.ayra.ch/makemkv/api.php?json"
   local settings_response=""
   local current_key=""
@@ -456,7 +454,6 @@ sync_makemkv_beta_key() {
   local beta_key=""
   local save_response=""
   local makemkv_settings_file="${SERVICE_HOME}/.MakeMKV/settings.conf"
-  local wait_attempt=0
 
   update_makemkv_settings_file_key() {
     local settings_file="$1"
@@ -476,14 +473,6 @@ sync_makemkv_beta_key() {
     chmod 600 "$settings_file" 2>/dev/null || true
   }
 
-  while (( wait_attempt < 10 )); do
-    if curl -fsS "$backend_health_url" >/dev/null 2>&1; then
-      break
-    fi
-    wait_attempt=$((wait_attempt + 1))
-    sleep 1
-  done
-
   if ! settings_response=$(curl -fsS "$backend_settings_url" 2>/dev/null); then
     warn "Backend-Settings konnten nicht geladen werden."
     warn "Betakey-Synchronisierung übersprungen: $backend_settings_url"