Rename sleep/wake to freeze/unfreeze across all 42 implementations

API endpoint changes:
- /services/{id}/sleep → /services/{id}/freeze
- /services/{id}/wake → /services/{id}/unfreeze

CLI flag changes:
- --sleep → --freeze
- --wake → --unfreeze

Message changes:
- 'Service sleeping' → 'Service frozen'
- 'Service waking' → 'Service unfreezing'

un.sh

@@ -970,14 +970,14 @@ cmd_service() {
     fi
 
     if [[ -n "$sleep" ]]; then
-        api_request "/services/$sleep/sleep" "POST" "" "$api_key" > /dev/null
-        echo -e "${GREEN}Service sleeping: $sleep${RESET}"
+        api_request "/services/$sleep/freeze" "POST" "" "$api_key" > /dev/null
+        echo -e "${GREEN}Service frozen: $sleep${RESET}"
         return
     fi
 
     if [[ -n "$wake" ]]; then
-        api_request "/services/$wake/wake" "POST" "" "$api_key" > /dev/null
-        echo -e "${GREEN}Service waking: $wake${RESET}"
+        api_request "/services/$wake/unfreeze" "POST" "" "$api_key" > /dev/null
+        echo -e "${GREEN}Service unfreezing: $wake${RESET}"
         return
     fi