fleetd #759: fix the third copy of the role claim, and drop two references that rot

ConnectionIdentity's Caller record carried the same wrong rule as the two
places PR #760 fixed: it called the terminal a worker's, and read a null
terminal as the primary. The brief for #760 named only two of the three spots.

MemberPresence pointed at FleetMcp.markTrackedCallerPresent by name inside
{@code}, which the compiler does not check, and inject has no dependency on
mcp so a {@link} would add a cross-package reference. States the principle
instead, which stays true whichever roles qualify. Drops a ticket key.

fleetd/src/main/java/dev/ltms/fleet/inject/MemberPresence.java

@@ -5,16 +5,16 @@ import java.util.Set;
 
 /**
  * Tracks which peers are <em>available</em> — their Claude has booted and connected its MCP
- * client to the bridge (CB-113). For a spawned member this is the reliable readiness signal,
+ * client to the bridge. For a spawned member this is the reliable readiness signal,
  * unlike herdr's {@code agent_status}, which reports {@code idle} while its Claude is still
  * booting. Delivering into that boot window pastes into a not-yet-ready TUI (the text is lost)
  * and wedges that member's delivery state, so the {@link Injector} holds a spawned member's
  * first delivery until it is present here.
  *
- * <p>Populated from the MCP transport, for the peers whose deliverability depends on a proven
- * live MCP contact; {@code FleetMcp.markTrackedCallerPresent} decides which peers those are. A
- * peer that never mounts the bridge MCP is never marked present — its sends stay queued until
- * they time out, which is correct (it could not have replied anyway).
+ * <p>Populated from the MCP transport, for the peers whose deliverability rests on proving a live
+ * MCP contact rather than on a configured registry entry. A peer that never mounts the bridge MCP
+ * is never marked present — its sends stay queued until they time out, which is correct (it could
+ * not have replied anyway).
  */
 public class MemberPresence {
 

fleetd/src/main/java/dev/ltms/fleet/mcp/ConnectionIdentity.java

@@ -46,9 +46,10 @@ public final class ConnectionIdentity {
     }
 
     /**
-     * The caller resolved from the connection: its worker {@code terminal} (or {@code null} for the
-     * primary / an off-host client), its {@code pid} (or {@code -1} if not resolvable), and whether
-     * the pane scan behind {@code terminal} ran to completion ({@link #scanComplete}).
+     * The caller resolved from the connection: the {@code terminal} of the pane it connects from
+     * (or {@code null} when the connection maps to no pane), its {@code pid} (or {@code -1} if not
+     * resolvable), and whether the pane scan behind {@code terminal} ran to completion
+     * ({@link #scanComplete}).
      */
     public record Caller(String terminal, long pid, boolean scanComplete) {