feat: Update changelog and configuration for version 0.5.51

- Set default `force_ipv4_dns` to true to prevent web_fetch timeouts in HAOS VMs.
- Introduced `nginx_log_level` option to control access log verbosity.
- Updated translations for new configuration options.

openclaw_assistant/config.yaml

@@ -1,5 +1,5 @@
 name: OpenClaw Assistant
-version: "0.5.50"
+version: "0.5.51"
 slug: openclaw_assistant
 description: Run OpenClaw Assistant (OpenClaw-compatible) as a Home Assistant add-on.
 url: https://github.com/techartdev/OpenClawHomeAssistant
@@ -95,9 +95,14 @@ options:
   enable_openai_api: false
 
   # Force IPv4-first DNS result ordering for Node fetch/network calls.
-  # Useful on networks where IPv6 resolution exists but IPv6 egress is broken
-  # (can affect Telegram API polling in some HAOS/VM setups).
-  force_ipv4_dns: false
+  # Most HAOS VMs lack IPv6 egress, causing web_fetch / Telegram timeouts.
+  # Default: true (recommended). Set to false only if you need IPv6.
+  force_ipv4_dns: true
+
+  # Nginx access log verbosity:
+  # full: log all requests (useful for debugging)
+  # minimal: suppress repetitive HA health-check and polling requests (default)
+  nginx_log_level: minimal
 
 
 schema:
@@ -122,4 +127,5 @@ schema:
   gateway_trusted_proxies: str?
   enable_openai_api: bool?
   force_ipv4_dns: bool?
+  nginx_log_level: list(full|minimal)?