Added

• Explicit search model selection via [models].web_search config key and GROK_WEB_SEARCH_MODEL environment variable, with env taking precedence over config.
• Hosted search capability auto-detection for Grok relay channels at startup (web_search + x_search probing).
• Chat Completions search dialect auto-detection (search_parameters vs web_search_options).
• CC Switch takeover detection before config rewrite — start is refused when CC Switch already owns Grok Build.
• Single-instance enforcement for both tray and foreground modes via OS-level lock.
• Windows log window application icon display in title bar and taskbar.
• Search route resolution logging at startup, visible in hellogrok routes and the log window. Changed
• Tray now defaults to proxy-enabled on first launch.
• Tray quit defers exit when a config-ownership conflict exists, preventing orphaned proxy URLs.
• SIGINT/SIGTERM handlers retry stop on deferred errors instead of leaving the process inconsistent.
• BackendSearchSet field distinguishes explicit supports_backend_search declarations from Build's false default, enabling runtime probing for unset values.
• Route now carries HostedSearchKnown, HostedWebSearch, HostedXSearch, and HostedChatSearchDialect for capability-aware request normalization.
• Tool choice normalization is now capability-aware — only confirmed hosted search declarations are injected. Fixed
• Managed search flag now placed after channel settings in config rewrites, preventing key-ordering issues.
• Client search wire alias properly hidden from upstream requests.