- Add "Ban IP" menu item to the log message list (m_CList_Message)
right-click context menu, allowing users to extract IPv4 addresses from
selected log entries and add them directly to the IP blacklist
- Reuses ExtractFirstIPFromMessage() from the previous commit for
dependency-free IPv4 parsing with per-segment 0-255 validation
- Checks against whitelist before banning (whitelisted IPs cannot be
banned) and skips IPs already in blacklist with clear feedback
- Immediately persists via THIS_CFG.SetStr to the config ini file;
IPBlacklist singleton takes effect instantly — subsequent connections
from banned IPs are rejected in IOCPServer::OnAccept() which already
calls IsIPBlacklisted() on every new connection
- Menu item is grayed out when no log entry is selected
- Sync en_US / zh_TW language files with new translation strings
Co-Authored-By: DeepSeek V4 Pro
7bbc47a0ee