refactor(web): 下载盘、RSS、订阅、设置与待处理的剩余去噪项(DEAI-2)

- 下载面板:下载盘只显示「已用 x / 总量」与进度条,暂停线 / 在途 / 预留 / 可清理 / 做种保留收进详情;
  阈值文案统一「暂停线 / 恢复线 / 下载盘满暂停」
- RSS 页去掉与站点页重复的站点表,节标题「RSS 地址」;用途只在非通用时显示
- 订阅:一条都没有时不铺筛选;表单里「空 = 24;0 = 关」等等式改成 placeholder + 一句说明
- 设置:浏览器服务、元数据识别、MCP 说明去掉组件名与实现细节;会话目录与 fake 脚本只在开发构建显示;
  API Key scope 前加中文名;命名模板变量去掉「MP 无」
- 待处理顶部计数卡改成一行筛选按钮
- 智能体悬浮按钮只在没有侧栏的窄屏出现,抽屉打开时不再显示「收起」胶囊

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/routes/console/subscriptions.tsx

@@ -275,63 +275,68 @@ export default function SubscriptionsPage() {
         />
       ) : (
         <>
-          <div className="mb-3">
-            <Pills
-              label="分组"
-              value={v.group as SubscriptionGroup | ""}
-              onChange={(x) => f.set("group", x)}
-              items={[
-                { value: "", label: "全部", count: allCount },
-                ...GROUP_ORDER.map((g) => ({ value: g, label: GROUP_LABEL[g], count: counts?.[g] })),
-              ]}
-            />
-          </div>
-          <FilterBar
-            search={{ value: q, onChange: setQ, placeholder: "作品标题 / 别名 / 检索词" }}
-            onReset={
-              filtered
-                ? () => {
-                    setQ("");
-                    for (const k of ["q", "site", "rg", "origin", "up"] as const) f.set(k, "");
-                  }
-                : undefined
-            }
-          >
-            <FilterSelect
-              label="站点"
-              value={v.site}
-              onChange={(x) => f.set("site", x)}
-              options={(sites.data?.items ?? []).map((s) => ({ value: s.id, label: s.name }))}
-            />
-            <FilterSelect
-              label="规则组"
-              value={v.rg}
-              onChange={(x) => f.set("rg", x)}
-              options={(groups.data?.items ?? []).map((g) => ({ value: g.id, label: g.name }))}
-            />
-            <FilterSelect
-              label="来源"
-              value={v.origin}
-              onChange={(x) => f.set("origin", x)}
-              options={opts(SUB_ORIGIN)}
-            />
-            <FilterSelect
-              label="洗版"
-              value={v.up}
-              onChange={(x) => f.set("up", x)}
-              options={[
-                { value: "true", label: "洗版中" },
-                { value: "false", label: "未洗版" },
-              ]}
-            />
-            <FilterSelect
-              label="排序"
-              value={v.sort}
-              onChange={(x) => f.set("sort", x)}
-              allLabel="按分组"
-              options={opts(SORT_LABEL)}
-            />
-          </FilterBar>
+          {/* 一条订阅都没有时只留空态和「新建订阅」,不铺筛选 */}
+          {allCount === 0 && !filtered && !v.group && !v.kind ? null : (
+            <>
+              <div className="mb-3">
+                <Pills
+                  label="分组"
+                  value={v.group as SubscriptionGroup | ""}
+                  onChange={(x) => f.set("group", x)}
+                  items={[
+                    { value: "", label: "全部", count: allCount },
+                    ...GROUP_ORDER.map((g) => ({ value: g, label: GROUP_LABEL[g], count: counts?.[g] })),
+                  ]}
+                />
+              </div>
+              <FilterBar
+                search={{ value: q, onChange: setQ, placeholder: "作品标题 / 别名 / 检索词" }}
+                onReset={
+                  filtered
+                    ? () => {
+                        setQ("");
+                        for (const k of ["q", "site", "rg", "origin", "up"] as const) f.set(k, "");
+                      }
+                    : undefined
+                }
+              >
+                <FilterSelect
+                  label="站点"
+                  value={v.site}
+                  onChange={(x) => f.set("site", x)}
+                  options={(sites.data?.items ?? []).map((s) => ({ value: s.id, label: s.name }))}
+                />
+                <FilterSelect
+                  label="规则组"
+                  value={v.rg}
+                  onChange={(x) => f.set("rg", x)}
+                  options={(groups.data?.items ?? []).map((g) => ({ value: g.id, label: g.name }))}
+                />
+                <FilterSelect
+                  label="来源"
+                  value={v.origin}
+                  onChange={(x) => f.set("origin", x)}
+                  options={opts(SUB_ORIGIN)}
+                />
+                <FilterSelect
+                  label="洗版"
+                  value={v.up}
+                  onChange={(x) => f.set("up", x)}
+                  options={[
+                    { value: "true", label: "洗版中" },
+                    { value: "false", label: "未洗版" },
+                  ]}
+                />
+                <FilterSelect
+                  label="排序"
+                  value={v.sort}
+                  onChange={(x) => f.set("sort", x)}
+                  allLabel="按分组"
+                  options={opts(SORT_LABEL)}
+                />
+              </FilterBar>
+            </>
+          )}
 
           {selecting ? (
             <div className="pg-slab sticky top-2 z-20 mb-3 flex flex-wrap items-center gap-2 rounded-xl px-3 py-2">
@@ -393,7 +398,7 @@ export default function SubscriptionsPage() {
               icon={CalendarClock}
               title={filtered || v.group || v.kind ? "没有符合条件的订阅" : "还没有订阅"}
               description={
-                filtered || v.group || v.kind ? undefined : "从媒体库、搜索或智能体添加，也可以点「新建订阅」。"
+                filtered || v.group || v.kind ? undefined : "在搜索或媒体库里点「订阅」，或点右上角「新建订阅」。"
               }
             />
           ) : grouped ? (