Add impacted-people total and letter deletion

- Home header shows a running sum of impacted people across all matching
  records (respects the current search filter), next to the record count
- Letters can be deleted from the table (trash button next to Download),
  which unlinks the pastor and removes the upload doc so a new file can be
  uploaded in its place

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/(frontend)/PastorsTable.tsx

@@ -3,7 +3,7 @@
 import React, { useRef, useState, useTransition } from 'react'
 import { useRouter } from 'next/navigation'
 
-import { createPastor, updatePastor, uploadLetter } from './actions'
+import { createPastor, deleteLetter, updatePastor, uploadLetter } from './actions'
 
 export type PastorRow = {
   id: number
@@ -136,26 +136,7 @@ export function PastorsTable({ rows }: { rows: PastorRow[] }) {
     {
       key: 'letter',
       label: 'Carta',
-      cell: (p) =>
-        p.letterUrl ? (
-          <a
-            href={p.letterUrl}
-            target="_blank"
-            rel="noopener noreferrer"
-            download={p.letterName ?? undefined}
-            className="btn btn-xs btn-outline btn-success"
-          >
-            Descargar
-          </a>
-        ) : (
-          <button
-            type="button"
-            className="btn btn-xs btn-outline"
-            onClick={() => setUploading(p)}
-          >
-            Subir
-          </button>
-        ),
+      cell: (p) => <LetterActions pastor={p} onUpload={() => setUploading(p)} />,
     },
   ]
 
@@ -282,6 +263,67 @@ export function PastorsTable({ rows }: { rows: PastorRow[] }) {
   )
 }
 
+function LetterActions({ pastor, onUpload }: { pastor: PastorRow; onUpload: () => void }) {
+  const router = useRouter()
+  const [pending, startTransition] = useTransition()
+
+  if (!pastor.letterUrl) {
+    return (
+      <button type="button" className="btn btn-xs btn-outline" onClick={onUpload}>
+        Subir
+      </button>
+    )
+  }
+
+  const onDelete = () => {
+    if (!window.confirm('¿Eliminar la carta? Podrás subir una nueva después.')) return
+    startTransition(async () => {
+      await deleteLetter(pastor.id)
+      router.refresh()
+    })
+  }
+
+  return (
+    <div className="flex items-center gap-1">
+      <a
+        href={pastor.letterUrl}
+        target="_blank"
+        rel="noopener noreferrer"
+        download={pastor.letterName ?? undefined}
+        className="btn btn-xs btn-outline btn-success"
+      >
+        Descargar
+      </a>
+      <button
+        type="button"
+        className="btn btn-xs btn-square btn-ghost text-error"
+        onClick={onDelete}
+        disabled={pending}
+        aria-label="Eliminar carta"
+        title="Eliminar carta"
+      >
+        {pending ? (
+          <span className="loading loading-spinner loading-xs" />
+        ) : (
+          <svg
+            xmlns="http://www.w3.org/2000/svg"
+            className="w-4 h-4"
+            viewBox="0 0 20 20"
+            fill="currentColor"
+            aria-hidden="true"
+          >
+            <path
+              fillRule="evenodd"
+              d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z"
+              clipRule="evenodd"
+            />
+          </svg>
+        )}
+      </button>
+    </div>
+  )
+}
+
 function PastorModal({ pastor, onClose }: { pastor: PastorRow | null; onClose: () => void }) {
   const router = useRouter()
   const isCreate = pastor === null

src/app/(frontend)/actions.ts

@@ -80,6 +80,31 @@ export async function updatePastor(id: number, data: PastorUpdateInput) {
   return { ok: true }
 }
 
+/**
+ * Elimina la carta asociada a un pastor: desvincula el campo `letter` y borra
+ * el documento de subida, de modo que se pueda subir uno nuevo en su lugar.
+ */
+export async function deleteLetter(pastorId: number) {
+  const payload = await getPayload({ config: await config })
+
+  const pastor = await payload.findByID({ collection: 'pastors', id: pastorId, depth: 0 })
+  const letterId =
+    pastor.letter && typeof pastor.letter === 'object' ? pastor.letter.id : pastor.letter
+
+  await payload.update({ collection: 'pastors', id: pastorId, data: { letter: null } })
+
+  if (letterId) {
+    try {
+      await payload.delete({ collection: 'pastor-letters', id: letterId })
+    } catch {
+      // The upload doc may already be gone; unlinking the pastor is enough.
+    }
+  }
+
+  revalidatePath('/')
+  return { ok: true }
+}
+
 /**
  * Sube una carta (PDF o Word) y la asocia a un pastor. El archivo se guarda en
  * la colección de subidas `pastor-letters`, que valida los tipos de archivo

src/app/(frontend)/page.tsx

@@ -61,6 +61,17 @@ export default async function HomePage({
     limit: PAGE_SIZE,
   })
 
+  // Running total of impacted people across ALL matching records (not just the
+  // current page). Only the number field is selected to keep this light.
+  const impactedAgg = await payload.find({
+    collection: 'pastors',
+    where,
+    pagination: false,
+    depth: 0,
+    select: { impactedPeople: true },
+  })
+  const totalImpacted = impactedAgg.docs.reduce((sum, d) => sum + (d.impactedPeople ?? 0), 0)
+
   const rows: PastorRow[] = result.docs.map((p) => {
     const letter = p.letter && typeof p.letter === 'object' ? p.letter : null
     return {
@@ -90,6 +101,11 @@ export default async function HomePage({
           <h1 className="text-3xl font-bold">Pastores</h1>
           <p className="text-base-content/60 text-sm mt-1">
             {result.totalDocs.toLocaleString('es')} registros
+            <span className="mx-2 opacity-40">·</span>
+            <span className="font-medium text-base-content/80">
+              {totalImpacted.toLocaleString('es')}
+            </span>{' '}
+            personas impactadas
           </p>
         </div>
         <form method="get" className="join">