fix: keep video downloads visible while playing

src/components/messageStream/hooks/usePostStream.ts

@@ -16,6 +16,7 @@ export type PostStreamParams = {
   language?: string;
   q?: string;
   sort?: string;
+  tag?: string;
   lang: Lang;
 };
 
@@ -60,6 +61,9 @@ function filterMock(params: PostStreamParams): Post[] {
       return false;
     const q = params.q?.trim().toLowerCase();
     if (params.language && p.language !== params.language) return false;
+    const tag = params.tag?.trim().toLowerCase();
+    if (tag && !(p.tags ?? []).some((t) => t.toLowerCase() === tag))
+      return false;
     if (q) {
       const haystack = [
         p.text ?? "",
@@ -89,6 +93,7 @@ function buildRealUrl(params: PostStreamParams, cursor?: string): string {
   if (params.scope.kind === "category") sp.set("category", params.scope.slug);
   if (params.type && params.type !== "all") sp.set("type", params.type);
   if (params.sort) sp.set("sort", params.sort);
+  if (params.tag) sp.set("tag", params.tag);
   if (params.language) sp.set("language", sourceLanguageQuery(params.language));
   if (cursor) sp.set("cursor", cursor);
   return `${q ? "/api/posts/search" : "/api/posts"}?${sp.toString()}`;
@@ -166,6 +171,7 @@ export function usePostStream(params: PostStreamParams): PostStreamResult {
     params.language,
     params.q,
     params.sort,
+    params.tag,
     params.lang,
   ]);