Add live transmitter position (status) alongside logged points

devices/<serial>/log messages now carry a "type": "log" or "status".
"log" persists a LocatePoint as before; "status" carries the same
position + telemetry shape but is broadcast live over the job's
realtime channel without touching locate_points — it's a current-
position update, not a recorded point.

The job map renders the latest status as a blue "you are here" marker
(with a soft accuracy-radius halo) that moves in place as new updates
arrive, separate from the colored polyline of logged points. Clicking
it shows the same detail readout as a logged point.

The simulator gained a message-type toggle (Log point / Status
update) so both paths can be exercised from /sim.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

web/pages/sim/index.tsx

@@ -14,11 +14,14 @@ interface JobOption {
 interface SentEntry {
   at: string;
   seq: number;
+  type: MessageType;
   lat: number;
   lng: number;
   depth: number;
 }
 
+type MessageType = 'log' | 'status';
+
 const UTILITIES = ['GAS', 'WATER', 'ELECTRIC', 'SEWER', 'TELECOM', 'CATV', 'FIBER', 'STEAM', 'UNKNOWN'];
 const FIX_TYPES = ['FIXED_RTK', 'FLOAT_RTK', 'DGPS', 'AUTONOMOUS', 'NONE'];
 const LOCATE_MODES = ['PEAK', 'NULL', 'BROAD_PEAK', 'SONDE'];
@@ -47,6 +50,7 @@ export default function SimulatorPage() {
   const [newTicket, setNewTicket] = useState('');
   const [newTitle, setNewTitle] = useState('');
 
+  const [messageType, setMessageType] = useState<MessageType>('log');
   const [serial, setSerial] = useState('');
   const [utility, setUtility] = useState('GAS');
   const [fixType, setFixType] = useState('FIXED_RTK');
@@ -131,6 +135,7 @@ export default function SimulatorPage() {
     const pointDepth = Math.max(0.1, jitter(depth, 0.15));
     try {
       await api.post(`/api/orgs/${orgId}/sim/publish`, {
+        type: messageType,
         serial,
         jobId,
         lat: pos.lat,
@@ -153,7 +158,12 @@ export default function SimulatorPage() {
         ts: new Date().toISOString(),
       });
       setCount(seq);
-      setSent((prev) => [{ at: new Date().toLocaleTimeString(), seq, lat: pos.lat, lng: pos.lng, depth: pointDepth }, ...prev].slice(0, 25));
+      setSent((prev) =>
+        [
+          { at: new Date().toLocaleTimeString(), seq, type: messageType, lat: pos.lat, lng: pos.lng, depth: pointDepth },
+          ...prev,
+        ].slice(0, 25),
+      );
       setError(null);
     } catch (err: any) {
       setError(err.message);
@@ -210,6 +220,18 @@ export default function SimulatorPage() {
         </p>
         {error && <p style={{ color: '#c62828' }}>{error}</p>}
 
+        <fieldset style={{ marginBottom: '1rem', border: '1px solid #ddd', borderRadius: 8, padding: '1rem' }}>
+          <legend>Message type</legend>
+          <label style={{ marginRight: '1.5rem' }}>
+            <input type="radio" checked={messageType === 'log'} onChange={() => setMessageType('log')} /> Log point{' '}
+            <span style={{ color: '#888' }}>— persisted, appears on the utility line</span>
+          </label>
+          <label>
+            <input type="radio" checked={messageType === 'status'} onChange={() => setMessageType('status')} /> Status
+            update <span style={{ color: '#888' }}>— live position only, not saved</span>
+          </label>
+        </fieldset>
+
         <fieldset style={{ marginBottom: '1rem', border: '1px solid #ddd', borderRadius: 8, padding: '1rem' }}>
           <legend>Job</legend>
           {!creatingJob ? (
@@ -371,10 +393,10 @@ export default function SimulatorPage() {
 
         <div style={{ display: 'flex', alignItems: 'center', gap: '0.75rem', marginBottom: '1rem' }}>
           <button onClick={sendPoint} disabled={!jobId || autoSending} style={{ padding: '0.6rem 1rem' }}>
-            Send point
+            Send {messageType === 'log' ? 'log point' : 'status update'}
           </button>
           <button onClick={toggleAutoSend} disabled={!jobId} style={{ padding: '0.6rem 1rem' }}>
-            {autoSending ? 'Stop auto-send' : 'Start auto-send'}
+            {autoSending ? 'Stop auto-send' : `Start auto-send (${messageType})`}
           </button>
           <label>
             every{' '}
@@ -398,6 +420,7 @@ export default function SimulatorPage() {
             <tr style={{ textAlign: 'left', borderBottom: '2px solid #ddd' }}>
               <th style={{ padding: '0.4rem' }}>Time</th>
               <th>Seq</th>
+              <th>Type</th>
               <th>Lat</th>
               <th>Lng</th>
               <th>Depth</th>
@@ -408,6 +431,7 @@ export default function SimulatorPage() {
               <tr key={s.seq} style={{ borderBottom: '1px solid #eee' }}>
                 <td style={{ padding: '0.4rem' }}>{s.at}</td>
                 <td>{s.seq}</td>
+                <td style={{ color: s.type === 'log' ? '#333' : '#1a73e8' }}>{s.type}</td>
                 <td>{s.lat.toFixed(7)}</td>
                 <td>{s.lng.toFixed(7)}</td>
                 <td>{s.depth} m</td>
@@ -415,7 +439,7 @@ export default function SimulatorPage() {
             ))}
             {sent.length === 0 && (
               <tr>
-                <td colSpan={5} style={{ padding: '1.5rem', textAlign: 'center', color: '#888' }}>
+                <td colSpan={6} style={{ padding: '1.5rem', textAlign: 'center', color: '#888' }}>
                   No points sent yet.
                 </td>
               </tr>