feat: add active SF and LA HQ environments

src/adapters/sample.ts

@@ -583,6 +583,20 @@ export function samplePresenceAt(when: Date): Presence[] {
   return out;
 }
 
+/**
+ * Office-aware fallback for shipped environments.
+ *
+ * The legacy roster above is valuable as a renderer fixture, but its seat ids
+ * describe the original reference tower and therefore cannot truthfully appear
+ * in either active HQ. A missing presence service now means what it says: no
+ * fabricated people. Keeping this resolver keyed by the stable office id gives
+ * self-hosters and future sample packs an explicit seam without ever treating a
+ * shiny room as evidence of employees.
+ */
+export function samplePresenceForOfficeAt(_officeId: string, _when: Date): Presence[] {
+  return [];
+}
+
 /**
  * Minutes since local midnight, as a literal. Every window in this section is
  * written with it so that the source reads as a timetable.