Add write_readme, Caddy, and start prompt to wolf/homeassistant/js99er/minecraft

- wolf.sh: add Authelia SSO check, configure_caddy_for_service, write_readme,
  and prompt to start Wolf (it had none of these)
- homeassistant.sh: add write_readme with access URL and manage commands
- js99er.sh: add write_readme with access URL and manage commands
- minecraft.sh: add write_readme with manage and backup commands

Completes the service audit — all 49 services now have full interactive setup,
standalone bootstrap, and self-documenting README in the deploy directory.

https://claude.ai/code/session_014CCYqVwW6d6f5dw1qRokYt

services/homeassistant.sh

@@ -242,6 +242,25 @@ HA_CONFIG
         configure_caddy_for_service "Home Assistant" "homeassistant:8123" "home"
     fi
 
+    write_readme "$HOMEASSISTANT_DIR" << MD
+# Home Assistant
+
+Home automation hub. Built-in auth — no Authelia needed.
+
+## Access
+- URL: http://localhost:8123
+- First run: create your admin account through the onboarding wizard
+
+## Manage
+\`\`\`bash
+cd $HOMEASSISTANT_DIR
+docker compose up -d                          # start
+docker compose down                           # stop
+docker compose logs -f                        # logs
+docker compose pull && docker compose up -d   # update
+\`\`\`
+MD
+
     local START_HA=""
     prompt_yn "Start Home Assistant now? (y/n):" "y" START_HA
     if [ "$START_HA" = "y" ] || [ "$START_HA" = "Y" ]; then