shell: fix nav icon conflicts

- schedule: jobs → clock (was sharing hamburger icon with Jobs)
- playout: monitor → signal (was sharing TV icon with Monitors)

services/web-ui/public/shell.jsx

@@ -20,7 +20,7 @@ const NAV_SECTIONS = [
       { id: "upload", label: "Upload", icon: "upload" },
       { id: "youtube", label: "YouTube", icon: "download" },
       { id: "recorders", label: "Recorders", icon: "record" },
-      { id: "schedule", label: "Schedule", icon: "jobs" },
+      { id: "schedule", label: "Schedule", icon: "clock" },
       { id: "monitors", label: "Monitors", icon: "monitor" },
     ],
   },
@@ -28,7 +28,7 @@ const NAV_SECTIONS = [
     label: "Operations",
     items: [
       { id: "capture", label: "Capture", icon: "capture" },
-      { id: "playout", label: "Playout", icon: "monitor" },
+      { id: "playout", label: "Playout", icon: "signal" },
       { id: "jobs", label: "Jobs", icon: "jobs" },
     ],
   },