feat(admin): filtro por empresa + contadores filtrados

app/admin/responses/page.tsx

@@ -137,18 +137,29 @@ export default async function AdminResponsesPage({
 
   const responses = (responsesData ?? []) as unknown as ResponseRow[]
 
-  // 3. Contadores totales (independientes del límite de 500 submissions)
-  const { count: totalSubmissions } = await supabase
+  // 3. Contadores totales (independientes del límite de 500 submissions),
+  //    filtrados por survey_id cuando hay filtro activo.
+  let submissionsCountQuery = supabase
     .from('responses')
     .select('*', { count: 'exact', head: true })
 
+  if (surveyId) {
+    submissionsCountQuery = submissionsCountQuery.eq('survey_id', surveyId)
+  }
+
+  const { count: totalSubmissions } = await submissionsCountQuery
+
+  let answersCountQuery = supabase
+    .from('answers')
+    .select('*, responses!inner(survey_id)', { count: 'exact', head: true })
+    .in('question_id', allowedIds)
+
+  if (surveyId) {
+    answersCountQuery = answersCountQuery.eq('responses.survey_id', surveyId)
+  }
+
   const { count: totalAnswers } =
-    allowedIds.length > 0
-      ? await supabase
-          .from('answers')
-          .select('*', { count: 'exact', head: true })
-          .in('question_id', allowedIds)
-      : { count: 0 }
+    allowedIds.length > 0 ? await answersCountQuery : { count: 0 }
 
   // 4. Aplanar: una fila por answer, ordenadas por position dentro de cada submission
   const rows: DisplayRow[] = []