* fix: unify startup logo and loading theme behavior
Show desktop window immediately with animated splash logo
Align splash/logo colors with selected app theme and default themes
Keep auth loading state on full-screen logo without size jump
Make project SVG icons follow active app theme
Use the active theme foreground color for project icons discovered from favicons
Apply server-side SVG color overrides for currentColor icons via icon request params
Keep non-SVG project icons unchanged while preserving existing fallback behavior
* perf: speed up desktop startup and unify loading logo visuals
Desktop startup now shows UI sooner while backend boot continues in background
Startup host probing uses a faster local path with safer remote fallback retries
OpenChamber logo cube highlights now match splash screens consistently
* fix: keep macOS traffic-light buttons in the correct position on load
Stop native window title updates on macOS during app initialization
Prevent title bar relayout that reset custom traffic-light positioning
* fix: recover missing providers and agents after fast startup
Retries provider/agent loading when connection is up but core config is still empty
Prevents cold-start state where models/agents appear only after manual project switch
Keeps startup responsive with throttled background recovery in app bootstrap