feat(dashboard): clarify the fleet status card and swap map locations to project monitoring location coords.

feat: Location no longer assigned directly to unit, locations and coords are assigned to location only, unit only is deployed or benched.

backend/routers/activity.py

@@ -9,6 +9,7 @@ import logging
 import httpx
 from backend.database import get_db
 from backend.models import UnitHistory, Emitter, RosterUnit
+from backend.services.unit_location import get_active_location
 
 log = logging.getLogger(__name__)
 
@@ -140,6 +141,7 @@ def get_recent_callins(hours: int = 6, limit: int = None, db: Session = Depends(
                 days = int(hours_ago / 24)
                 time_ago = f"{days}d ago"
 
+        loc = get_active_location(db, emitter.id) if roster_unit else None
         call_in = {
             "unit_id": emitter.id,
             "last_seen": emitter.last_seen.isoformat(),
@@ -148,7 +150,7 @@ def get_recent_callins(hours: int = 6, limit: int = None, db: Session = Depends(
             "device_type": roster_unit.device_type if roster_unit else "seismograph",
             "deployed": roster_unit.deployed if roster_unit else False,
             "note": roster_unit.note if roster_unit and roster_unit.note else "",
-            "location": roster_unit.address if roster_unit and roster_unit.address else (roster_unit.location if roster_unit else "")
+            "location": (loc or {}).get("address") or (loc or {}).get("name") or ""
         }
         call_ins.append(call_in)