feat(web): home media grid 2-up mobile / 3-up PC, 6 items, drop folder panel

reaction_board/web/static/style.css

@@ -415,11 +415,9 @@ a.live-chip:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--bo
   font-size: 18px;
 }
 
-/* 统一的响应式媒体网格：移动端 1 列，PC 端 5 列。 */
-.media-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }
-@media (min-width: 620px) { .media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
+/* 统一的响应式媒体网格：移动端 2 列（图片自动缩放），PC 端 3 列。 */
+.media-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
 @media (min-width: 900px) { .media-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
-@media (min-width: 1280px) { .media-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
 /* 统一的竖排媒体卡：图 + 两行截断标题 + 作者/数据行 + 高亮数据行。 */
 .media-card {
   position: relative;
@@ -464,24 +462,6 @@ a.live-chip:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--bo
 .media-meta { color: var(--muted); font-size: 10.5px; }
 .media-highlight { color: var(--accent); font-size: 10.5px; font-weight: 650; }
 
-.capacity-row { padding: 7px 0; }
-.capacity-label { display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; }
-.capacity-label strong { color: var(--muted); font-weight: 600; }
-.capacity-track {
-  height: 7px;
-  margin-top: 6px;
-  overflow: hidden;
-  border-radius: 999px;
-  background: var(--surface-2);
-}
-.capacity-track span {
-  display: block;
-  height: 100%;
-  border-radius: inherit;
-  background: linear-gradient(90deg, var(--blue), var(--accent));
-}
-.capacity-track span.warning { background: linear-gradient(90deg, var(--warning), var(--danger)); }
-
 .status-grid {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));

reaction_board/web/static/views/home.js

@@ -43,29 +43,12 @@ function growthCard(item, index) {
   });
 }
 
-function capacity(folders) {
-  if (!folders.length) return "";
-  return `<section class="panel capacity-panel">
-    ${sectionHeader("历史收藏夹")}
-    <p class="section-note">系统已不再同步收藏夹；下列统计仅保留历史来源。</p>
-    ${folders.map((folder) => `
-      <div class="capacity-row">
-        <div class="capacity-label">
-          <span>${escapeHtml(folder.title || String(folder.year))}</span>
-          <strong>${formatCount(folder.media_count)} / ${formatCount(folder.capacity)}</strong>
-        </div>
-        <div class="capacity-track"><span style="width:${Math.min(100, folder.ratio * 100)}%"
-          class="${folder.warning ? "warning" : ""}"></span></div>
-      </div>`).join("")}
-  </section>`;
-}
-
 export async function renderHome(root) {
   const [overview, published, heat, growth] = await Promise.all([
     api("/api/overview"),
-    api("/api/videos", { sort: "published", within_days: 14, limit: 5 }),
-    api("/api/videos", { sort: "heat", limit: 5 }),
-    api("/api/videos", { sort: "growth", growth_days: 7, limit: 5 }),
+    api("/api/videos", { sort: "published", within_days: 14, limit: 6 }),
+    api("/api/videos", { sort: "heat", limit: 6 }),
+    api("/api/videos", { sort: "growth", growth_days: 7, limit: 6 }),
   ]);
 
   const pending = overview.counts.candidates_pending || 0;
@@ -136,8 +119,6 @@ export async function renderHome(root) {
       ${heatGrid(heat.items)}
     </section>
 
-    ${capacity(overview.folders || [])}
-
     <section class="panel status-panel">
       ${sectionHeader("采集状态")}
       <div class="status-grid">