fix(rotator): put the SP/LP readout inside the compass itself

It went under the Station Control rotator; the compass that wanted it is the
docked one beside the entry strip. Both are the same RotorCompass, so the
readout moves INTO that component: every compass in the app carries it, and no
caller draws its own.

The bezel already showed the short path as a red marker, but a marker is a
direction, not a number — and the numbers in the status bar are 10px, which is
what prompted this.

Clickable only when the caller passed onGoto, since a compass rendered without
one cannot turn anything and a button that does nothing is worse than a label.

frontend/wailsjs/go/models.ts

@@ -1331,6 +1331,7 @@ export namespace extsvc {
 	    upload_flags: string[];
 	    write_log: boolean;
 	    auto_upload: boolean;
+	    on_air: boolean;
 	    upload_mode: string;
 	
 	    static createFrom(source: any = {}) {
@@ -1355,6 +1356,7 @@ export namespace extsvc {
 	        this.upload_flags = source["upload_flags"];
 	        this.write_log = source["write_log"];
 	        this.auto_upload = source["auto_upload"];
+	        this.on_air = source["on_air"];
 	        this.upload_mode = source["upload_mode"];
 	    }
 	}