Merge branch 'fix/queue-pagination-envelope' — queue UI renders rows again

MR 6's backend + MR 7's UI had mismatched envelope assumptions. Backend
returned pagination as sibling fields to data; UI's ApiResponse<T> wrapper
only typed data, so 'body.data' (the queue) became undefined at runtime.

backend/internal/domain/discovery/handler.go

@@ -180,11 +180,15 @@ func (h *Handler) ListQueue(c *gin.Context) {
 		c.JSON(apiErr.Status, apierror.NewResponse(apiErr))
 		return
 	}
+	// Envelope matches ApiResponse<T>{data, meta} convention used by the rest
+	// of the API (see web/src/lib/api/types.ts PaginationMeta).
 	c.JSON(http.StatusOK, gin.H{
-		"data":   rows,
-		"total":  total,
-		"limit":  limit,
-		"offset": offset,
+		"data": rows,
+		"meta": gin.H{
+			"total":  total,
+			"limit":  limit,
+			"offset": offset,
+		},
 	})
 }
 

web/src/routes/admin/discovery/+page.server.ts

@@ -62,8 +62,7 @@ function parseLimit(raw: string | null): ValidLimit {
 	return (VALID_LIMITS as readonly number[]).includes(n) ? (n as ValidLimit) : 50;
 }
 
-type QueueListBody = {
-	data: DiscoveredMarket[];
+type QueueMeta = {
 	total: number;
 	limit: number;
 	offset: number;
@@ -75,14 +74,27 @@ export const load: PageServerLoad = async ({ cookies, url }) => {
 	const offset = (page - 1) * limit;
 
 	const [queueRes, statsRes] = await Promise.all([
-		serverFetch<QueueListBody>(`/admin/discovery/queue?limit=${limit}&offset=${offset}`, cookies),
+		serverFetch<DiscoveredMarket[]>(
+			`/admin/discovery/queue?limit=${limit}&offset=${offset}`,
+			cookies
+		),
 		serverFetch<Stats>(`/admin/discovery/stats`, cookies)
 	]);
-	// serverFetch casts the full JSON body as ApiResponse<T>; the actual response
-	// shape is { data: [...], total: N, limit: N, offset: N } so queueRes.data
-	// is the QueueListBody with all fields.
-	const body = queueRes.data;
-	return { queue: body.data, total: body.total, stats: statsRes.data, limit, offset, page };
+	// Pagination info lives on the envelope's `meta` field alongside `data`.
+	// apiFetch/serverFetch only types the `data` slot, so cast for meta access.
+	const meta = (queueRes as unknown as { meta?: QueueMeta }).meta ?? {
+		total: 0,
+		limit,
+		offset
+	};
+	return {
+		queue: queueRes.data,
+		total: meta.total,
+		stats: statsRes.data,
+		limit,
+		offset,
+		page
+	};
 };
 
 export const actions: Actions = {