fix: use openrgb static mode + SDK client to stop crashes on login

direct-mode color apply aborts (vector OOB → SIGABRT) on ASUS Aura
devices that expose addressable zones with zero LEDs; switch to static
mode, which applies the same color across all devices/zones without
hitting that path.

Also connect to the running OpenRGB SDK server via --client host:port
instead of re-detecting all hardware on every toggle. This wires up the
previously-unused openrgb.host/port config fields and removes a full
USB/HID re-scan per command — that re-scan racing the server is what made
it flakiest at login/boot. The existing retry logic now serves its
intended purpose (waiting for the server to come up if the daemon starts
first) rather than re-running a guaranteed-crashing command.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

controller/controller.go

@@ -19,7 +19,7 @@ func New(cfg *config.Config) (*Controller, error) {
 	c := &Controller{cfg: cfg}
 
 	if cfg.OpenRGB.Enabled {
-		client, err := openrgb.Connect()
+		client, err := openrgb.Connect(cfg.OpenRGB.Host, cfg.OpenRGB.Port)
 		if err != nil {
 			log.Printf("warning: openrgb unavailable: %v", err)
 		} else {
@@ -59,7 +59,7 @@ func (c *Controller) SetLEDs(on bool) error {
 
 func (c *Controller) setOpenRGB(on bool) error {
 	if c.orgb == nil {
-		client, err := openrgb.Connect()
+		client, err := openrgb.Connect(c.cfg.OpenRGB.Host, c.cfg.OpenRGB.Port)
 		if err != nil {
 			return err
 		}