chore: modular monolith folder split (no behavior change)

app/seismo/routers/dashboard_tabs.py

@@ -0,0 +1,34 @@
+# backend/routers/dashboard_tabs.py
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from backend.database import get_db
+from backend.services.snapshot import emit_status_snapshot
+
+router = APIRouter(prefix="/dashboard", tags=["dashboard-tabs"])
+
+@router.get("/active")
+def get_active_units(db: Session = Depends(get_db)):
+    """
+    Return only ACTIVE (deployed) units for dashboard table swap.
+    """
+    snap = emit_status_snapshot()
+    units = {
+        uid: u
+        for uid, u in snap["units"].items()
+        if u["deployed"] is True
+    }
+    return {"units": units}
+
+@router.get("/benched")
+def get_benched_units(db: Session = Depends(get_db)):
+    """
+    Return only BENCHED (not deployed) units for dashboard table swap.
+    """
+    snap = emit_status_snapshot()
+    units = {
+        uid: u
+        for uid, u in snap["units"].items()
+        if u["deployed"] is False
+    }
+    return {"units": units}