feat(anexos): página de galeria de comprovantes e documentos

Adiciona rota `/attachments` com visualização de todos os anexos do
usuário em grade, visualização inline de imagem e PDF, navegação entre
arquivos do mesmo lançamento e download direto.

Inclui também:
- API REST em `/api/attachments` para servir os arquivos
- Actions `fetch-by-id` e `fetch-dialog-options` em transactions
- Item "Anexos" adicionado à navbar
- `formatBytes` extraído para `src/shared/utils/number.ts`
- Migrations de banco atualizadas
- Fix: uploads e remoções de anexo agora funcionam para todos os
  lançamentos, não apenas os pertencentes a séries

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/features/transactions/components/attachments/attachment-file-picker.tsx

@@ -85,7 +85,7 @@ export function AttachmentFilePicker({
 						<RiAttachment2 className="size-4" />
 						Adicionar anexo
 					</span>
-					<span className="text-[11px]">
+					<span className="text-xs">
 						PDF, JPEG, PNG ou WebP · máx. {maxSizeMb} MB
 					</span>
 				</button>

src/features/transactions/components/attachments/attachment-item.tsx

@@ -5,8 +5,7 @@ import {
 	RiDownloadLine,
 	RiExternalLinkLine,
 	RiFileImageLine,
-	RiFileLine,
-	RiFilePdfLine,
+	RiFilePdf2Line,
 } from "@remixicon/react";
 import { useState, useTransition } from "react";
 import { toast } from "sonner";
@@ -30,10 +29,9 @@ function formatBytes(bytes: number): string {
 
 function AttachmentIcon({ mimeType }: { mimeType: string }) {
 	if (mimeType === "application/pdf")
-		return <RiFilePdfLine className="size-4 text-red-500 shrink-0" />;
+		return <RiFilePdf2Line className="size-4 text-red-500 shrink-0" />;
 	if (mimeType.startsWith("image/"))
 		return <RiFileImageLine className="size-4 text-blue-500 shrink-0" />;
-	return <RiFileLine className="size-4 text-muted-foreground shrink-0" />;
 }
 
 function AttachmentPreview({

src/features/transactions/components/dialogs/transaction-details-dialog.tsx

@@ -41,6 +41,7 @@ export function TransactionDetailsDialog({
 }: TransactionDetailsDialogProps) {
 	const [attachmentCount, setAttachmentCount] = useState<number | null>(null);
 
+	// biome-ignore lint/correctness/useExhaustiveDependencies: transaction?.id é trigger intencional para reset do contador
 	useEffect(() => {
 		setAttachmentCount(null);
 	}, [transaction?.id]);
@@ -87,7 +88,7 @@ export function TransactionDetailsDialog({
 									<p className="text-xs uppercase tracking-wide text-muted-foreground">
 										Resumo
 									</p>
-									<p className="mt-1 text-2xl font-semibold">
+									<p className="mt-1 text-2xl font-medium">
 										{currencyFormatter.format(valorTotal)}
 									</p>
 								</div>
@@ -235,14 +236,14 @@ export function TransactionDetailsDialog({
 				<Separator />
 
 				<DialogFooter>
-					{onEdit && !transaction.readonly && (
-						<Button variant="outline" onClick={handleEdit}>
-							Editar
-						</Button>
-					)}
 					<DialogClose asChild>
-						<Button type="button">Fechar</Button>
+						<Button type="button" variant="outline">
+							Fechar
+						</Button>
 					</DialogClose>
+					{onEdit && !transaction.readonly && (
+						<Button onClick={handleEdit}>Editar</Button>
+					)}
 				</DialogFooter>
 			</DialogContent>
 		</Dialog>

src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx

@@ -156,6 +156,7 @@ export function TransactionDialog({
 		defaultTransactionType,
 		isImporting,
 		cardOptions,
+		mode,
 	]);
 
 	const primaryPayerId = formState.payerId;
@@ -555,38 +556,23 @@ export function TransactionDialog({
 									<AttachmentSection
 										transactionId={transaction?.id ?? ""}
 										maxSizeMb={maxSizeMb}
-										pendingDetachIds={
-											transaction?.seriesId ? pendingDetachIds : undefined
+										pendingDetachIds={pendingDetachIds}
+										onPendingDetach={(id) =>
+											setPendingDetachIds((prev) => [...prev, id])
 										}
-										onPendingDetach={
-											transaction?.seriesId
-												? (id) => setPendingDetachIds((prev) => [...prev, id])
-												: undefined
+										onUndoPendingDetach={(id) =>
+											setPendingDetachIds((prev) =>
+												prev.filter((x) => x !== id),
+											)
 										}
-										onUndoPendingDetach={
-											transaction?.seriesId
-												? (id) =>
-														setPendingDetachIds((prev) =>
-															prev.filter((x) => x !== id),
-														)
-												: undefined
+										pendingUploadFiles={pendingUploadFiles}
+										onPendingUpload={(file) =>
+											setPendingUploadFiles((prev) => [...prev, file])
 										}
-										pendingUploadFiles={
-											transaction?.seriesId ? pendingUploadFiles : undefined
-										}
-										onPendingUpload={
-											transaction?.seriesId
-												? (file) =>
-														setPendingUploadFiles((prev) => [...prev, file])
-												: undefined
-										}
-										onCancelPendingUpload={
-											transaction?.seriesId
-												? (file) =>
-														setPendingUploadFiles((prev) =>
-															prev.filter((f) => f !== file),
-														)
-												: undefined
+										onCancelPendingUpload={(file) =>
+											setPendingUploadFiles((prev) =>
+												prev.filter((f) => f !== file),
+											)
 										}
 									/>
 								</div>