채널 카드 필터 UI, 캐시 초기화, 나라 필터 수정

- 채널 설명/태그 DB 컬럼 추가 및 백오피스 편집 기능
- 채널 드롭다운을 유튜브 아이콘 토글 카드로 변경 (데스크톱 최대 4개 표시, 스크롤)
- 모바일 홈탭 채널 카드 가로 스크롤
- region "나라" 값 필터 옵션에서 제외
- 관리자 캐시 초기화 버튼 및 API 추가

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

backend-java/src/main/java/com/tasteby/controller/AdminCacheController.java

@@ -0,0 +1,25 @@
+package com.tasteby.controller;
+
+import com.tasteby.security.AuthUtil;
+import com.tasteby.service.CacheService;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+@RestController
+@RequestMapping("/api/admin")
+public class AdminCacheController {
+
+    private final CacheService cacheService;
+
+    public AdminCacheController(CacheService cacheService) {
+        this.cacheService = cacheService;
+    }
+
+    @PostMapping("/cache-flush")
+    public Map<String, Object> flushCache() {
+        AuthUtil.requireAdmin();
+        cacheService.flush();
+        return Map.of("ok", true);
+    }
+}

backend-java/src/main/java/com/tasteby/controller/ChannelController.java

@@ -76,6 +76,14 @@ public class ChannelController {
         return result;
     }
 
+    @PutMapping("/{id}")
+    public Map<String, Object> update(@PathVariable String id, @RequestBody Map<String, String> body) {
+        AuthUtil.requireAdmin();
+        channelService.update(id, body.get("description"), body.get("tags"));
+        cache.flush();
+        return Map.of("ok", true);
+    }
+
     @DeleteMapping("/{channelId}")
     public Map<String, Object> delete(@PathVariable String channelId) {
         AuthUtil.requireAdmin();

backend-java/src/main/java/com/tasteby/domain/Channel.java

@@ -14,6 +14,8 @@ public class Channel {
     private String channelId;
     private String channelName;
     private String titleFilter;
+    private String description;
+    private String tags;
     private int videoCount;
     private String lastVideoAt;
 }

backend-java/src/main/java/com/tasteby/mapper/ChannelMapper.java

@@ -21,4 +21,8 @@ public interface ChannelMapper {
     int deactivateById(@Param("id") String id);
 
     Channel findByChannelId(@Param("channelId") String channelId);
+
+    void updateDescriptionTags(@Param("id") String id,
+                                @Param("description") String description,
+                                @Param("tags") String tags);
 }

backend-java/src/main/java/com/tasteby/service/ChannelService.java

@@ -38,4 +38,8 @@ public class ChannelService {
     public Channel findByChannelId(String channelId) {
         return mapper.findByChannelId(channelId);
     }
+
+    public void update(String id, String description, String tags) {
+        mapper.updateDescriptionTags(id, description, tags);
+    }
 }

backend-java/src/main/resources/mybatis/mapper/ChannelMapper.xml

@@ -7,12 +7,14 @@
         <result property="channelId" column="channel_id"/>
         <result property="channelName" column="channel_name"/>
         <result property="titleFilter" column="title_filter"/>
+        <result property="description" column="description"/>
+        <result property="tags" column="tags"/>
         <result property="videoCount" column="video_count"/>
         <result property="lastVideoAt" column="last_video_at"/>
     </resultMap>
 
     <select id="findAllActive" resultMap="channelResultMap">
-        SELECT c.id, c.channel_id, c.channel_name, c.title_filter,
+        SELECT c.id, c.channel_id, c.channel_name, c.title_filter, c.description, c.tags,
                (SELECT COUNT(*) FROM videos v WHERE v.channel_id = c.id) AS video_count,
                (SELECT MAX(v.published_at) FROM videos v WHERE v.channel_id = c.id) AS last_video_at
         FROM channels c
@@ -35,6 +37,11 @@
         WHERE id = #{id} AND is_active = 1
     </update>
 
+    <update id="updateDescriptionTags">
+        UPDATE channels SET description = #{description}, tags = #{tags}
+        WHERE id = #{id}
+    </update>
+
     <select id="findByChannelId" resultMap="channelResultMap">
         SELECT id, channel_id, channel_name, title_filter
         FROM channels

frontend/src/app/admin/page.tsx

@@ -7,6 +7,33 @@ import { useAuth } from "@/lib/auth-context";
 
 type Tab = "channels" | "videos" | "restaurants" | "users" | "daemon";
 
+function CacheFlushButton() {
+  const [flushing, setFlushing] = useState(false);
+
+  const handleFlush = async () => {
+    if (!confirm("Redis 캐시를 초기화하시겠습니까?")) return;
+    setFlushing(true);
+    try {
+      await api.flushCache();
+      alert("캐시가 초기화되었습니다.");
+    } catch (e) {
+      alert("캐시 초기화 실패: " + (e instanceof Error ? e.message : e));
+    } finally {
+      setFlushing(false);
+    }
+  };
+
+  return (
+    <button
+      onClick={handleFlush}
+      disabled={flushing}
+      className="px-3 py-1.5 text-xs bg-red-50 text-red-600 border border-red-200 rounded-lg hover:bg-red-100 disabled:opacity-50 transition-colors"
+    >
+      {flushing ? "초기화 중..." : "🗑 캐시 초기화"}
+    </button>
+  );
+}
+
 export default function AdminPage() {
   const [tab, setTab] = useState<Tab>("channels");
   const { user, isLoading } = useAuth();
@@ -38,9 +65,12 @@ export default function AdminPage() {
               <span className="px-2 py-0.5 bg-yellow-100 text-yellow-700 rounded text-xs font-medium">읽기 전용</span>
             )}
           </div>
-          <a href="/" className="text-sm text-blue-600 hover:underline">
-            &larr; 메인으로
-          </a>
+          <div className="flex items-center gap-3">
+            {isAdmin && <CacheFlushButton />}
+            <a href="/" className="text-sm text-blue-600 hover:underline">
+              &larr; 메인으로
+            </a>
+          </div>
         </div>
         <nav className="mt-3 flex gap-1">
           {(["channels", "videos", "restaurants", "users", "daemon"] as Tab[]).map((t) => (
@@ -101,6 +131,20 @@ function ChannelsPanel({ isAdmin }: { isAdmin: boolean }) {
     }
   };
 
+  const [editingChannel, setEditingChannel] = useState<string | null>(null);
+  const [editDesc, setEditDesc] = useState("");
+  const [editTags, setEditTags] = useState("");
+
+  const handleSaveChannel = async (id: string) => {
+    try {
+      await api.updateChannel(id, { description: editDesc, tags: editTags });
+      setEditingChannel(null);
+      load();
+    } catch {
+      alert("채널 수정 실패");
+    }
+  };
+
   const handleDelete = async (channelId: string, channelName: string) => {
     if (!confirm(`"${channelName}" 채널을 삭제하시겠습니까?`)) return;
     try {
@@ -164,8 +208,9 @@ function ChannelsPanel({ isAdmin }: { isAdmin: boolean }) {
               <th className="text-left px-4 py-3">채널 이름</th>
               <th className="text-left px-4 py-3">Channel ID</th>
               <th className="text-left px-4 py-3">제목 필터</th>
+              <th className="text-left px-4 py-3">설명</th>
+              <th className="text-left px-4 py-3">태그</th>
               <th className="text-right px-4 py-3">영상 수</th>
-              <th className="text-left px-4 py-3">마지막 스캔</th>
               {isAdmin && <th className="text-left px-4 py-3">액션</th>}
               <th className="text-left px-4 py-3">스캔 결과</th>
             </tr>
@@ -186,6 +231,32 @@ function ChannelsPanel({ isAdmin }: { isAdmin: boolean }) {
                     <span className="text-gray-400 text-xs">전체</span>
                   )}
                 </td>
+                <td className="px-4 py-3 text-xs">
+                  {editingChannel === ch.id ? (
+                    <input value={editDesc} onChange={(e) => setEditDesc(e.target.value)}
+                      className="border rounded px-2 py-1 text-xs w-32 bg-white text-gray-900" placeholder="설명" />
+                  ) : (
+                    <span className="text-gray-600 cursor-pointer" onClick={() => {
+                      if (!isAdmin) return;
+                      setEditingChannel(ch.id); setEditDesc(ch.description || ""); setEditTags(ch.tags || "");
+                    }}>{ch.description || <span className="text-gray-400">-</span>}</span>
+                  )}
+                </td>
+                <td className="px-4 py-3 text-xs">
+                  {editingChannel === ch.id ? (
+                    <div className="flex gap-1">
+                      <input value={editTags} onChange={(e) => setEditTags(e.target.value)}
+                        className="border rounded px-2 py-1 text-xs w-40 bg-white text-gray-900" placeholder="태그 (쉼표 구분)" />
+                      <button onClick={() => handleSaveChannel(ch.id)} className="text-blue-600 text-xs hover:underline">저장</button>
+                      <button onClick={() => setEditingChannel(null)} className="text-gray-400 text-xs hover:underline">취소</button>
+                    </div>
+                  ) : (
+                    <span className="text-gray-500 cursor-pointer" onClick={() => {
+                      if (!isAdmin) return;
+                      setEditingChannel(ch.id); setEditDesc(ch.description || ""); setEditTags(ch.tags || "");
+                    }}>{ch.tags ? ch.tags.split(",").map(t => t.trim()).join(", ") : <span className="text-gray-400">-</span>}</span>
+                  )}
+                </td>
                 <td className="px-4 py-3 text-right font-medium">
                   {ch.video_count > 0 ? (
                     <span className="px-2 py-0.5 bg-green-50 text-green-700 rounded text-xs">{ch.video_count}개</span>
@@ -193,9 +264,6 @@ function ChannelsPanel({ isAdmin }: { isAdmin: boolean }) {
                     <span className="text-gray-400 text-xs">0</span>
                   )}
                 </td>
-                <td className="px-4 py-3 text-xs text-gray-500">
-                  {ch.last_scanned_at ? ch.last_scanned_at.slice(0, 16).replace("T", " ") : "-"}
-                </td>
                 {isAdmin && <td className="px-4 py-3 flex gap-3">
                   <button
                     onClick={() => handleScan(ch.channel_id)}

frontend/src/app/page.tsx

@@ -68,7 +68,7 @@ function buildRegionTree(restaurants: Restaurant[]) {
   const tree = new Map<string, Map<string, Set<string>>>();
   for (const r of restaurants) {
     const p = parseRegion(r.region);
-    if (!p || !p.country) continue;
+    if (!p || !p.country || p.country === "나라") continue;
     if (!tree.has(p.country)) tree.set(p.country, new Map());
     const cityMap = tree.get(p.country)!;
     if (p.city) {
@@ -109,7 +109,7 @@ function findRegionFromCoords(
   const groups = new Map<string, { country: string; city: string; lats: number[]; lngs: number[] }>();
   for (const r of restaurants) {
     const p = parseRegion(r.region);
-    if (!p || !p.country || !p.city) continue;
+    if (!p || !p.country || p.country === "나라" || !p.city) continue;
     const key = `${p.country}|${p.city}`;
     if (!groups.has(key)) groups.set(key, { country: p.country, city: p.city, lats: [], lngs: [] });
     const g = groups.get(key)!;
@@ -564,22 +564,6 @@ export default function Home() {
               >
                 <svg viewBox="0 0 24 24" className="w-5 h-5 fill-current"><path d="M17.65 6.35A7.958 7.958 0 0012 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08A5.99 5.99 0 0112 18c-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/></svg>
               </button>
-              <select
-                value={channelFilter}
-                onChange={(e) => {
-                  setChannelFilter(e.target.value);
-                  setSelected(null);
-                  setShowDetail(false);
-                }}
-                className="border dark:border-gray-700 rounded-lg px-3 py-1.5 text-sm text-gray-600 dark:text-gray-300 dark:bg-gray-800"
-              >
-                <option value="">📺 채널</option>
-                {channels.map((ch) => (
-                  <option key={ch.id} value={ch.channel_name}>
-                    📺 {ch.channel_name}
-                  </option>
-                ))}
-              </select>
               <select
                 value={cuisineFilter}
                 onChange={(e) => setCuisineFilter(e.target.value)}
@@ -705,6 +689,37 @@ export default function Home() {
                 {filteredRestaurants.length}개
               </span>
             </div>
+            {/* Row 3: Channel cards (toggle filter) - max 4 visible, scroll for rest */}
+            {!isSearchResult && channels.length > 0 && (
+              <div className="overflow-x-auto scrollbar-hide" style={{ maxWidth: `${4 * 200 + 3 * 8}px` }}>
+                <div className="flex gap-2">
+                  {channels.map((ch) => (
+                    <button
+                      key={ch.id}
+                      onClick={() => {
+                        setChannelFilter(channelFilter === ch.channel_name ? "" : ch.channel_name);
+                        setSelected(null);
+                        setShowDetail(false);
+                      }}
+                      className={`shrink-0 flex items-center gap-2 rounded-lg px-3 py-1.5 border transition-all text-left ${
+                        channelFilter === ch.channel_name
+                          ? "bg-orange-50 dark:bg-orange-900/30 border-orange-300 dark:border-orange-700"
+                          : "bg-white dark:bg-gray-800 border-gray-200 dark:border-gray-700 hover:border-orange-200 dark:hover:border-orange-800"
+                      }`}
+                      style={{ width: "200px" }}
+                    >
+                      <svg className="w-4 h-4 shrink-0 text-red-500" viewBox="0 0 24 24" fill="currentColor"><path d="M23.498 6.186a3.016 3.016 0 0 0-2.122-2.136C19.505 3.545 12 3.545 12 3.545s-7.505 0-9.377.505A3.017 3.017 0 0 0 .502 6.186C0 8.07 0 12 0 12s0 3.93.502 5.814a3.016 3.016 0 0 0 2.122 2.136c1.871.505 9.376.505 9.376.505s7.505 0 9.377-.505a3.015 3.015 0 0 0 2.122-2.136C24 15.93 24 12 24 12s0-3.93-.502-5.814zM9.545 15.568V8.432L15.818 12l-6.273 3.568z"/></svg>
+                      <div className="min-w-0 flex-1">
+                        <p className={`text-xs font-semibold truncate ${
+                          channelFilter === ch.channel_name ? "text-orange-600 dark:text-orange-400" : "dark:text-gray-200"
+                        }`}>{ch.channel_name}</p>
+                        {ch.description && <p className="text-[10px] text-gray-400 dark:text-gray-500 truncate">{ch.description}</p>}
+                      </div>
+                    </button>
+                  ))}
+                </div>
+              </div>
+            )}
           </div>
 
           {/* User area */}
@@ -742,6 +757,43 @@ export default function Home() {
         <div className={`md:hidden px-4 pb-3 space-y-2 ${mobileTab === "favorites" || mobileTab === "profile" ? "hidden" : ""}`}>
           {/* Row 1: Search */}
           <SearchBar key={resetCount} onSearch={handleSearch} isLoading={loading} />
+          {/* Channel cards - toggle filter */}
+          {mobileTab === "home" && !isSearchResult && channels.length > 0 && (
+            <div className="flex gap-2 overflow-x-auto pb-1 -mx-1 px-1 scrollbar-hide">
+              {channels.map((ch) => (
+                <button
+                  key={ch.id}
+                  onClick={() => {
+                    setChannelFilter(channelFilter === ch.channel_name ? "" : ch.channel_name);
+                    setSelected(null);
+                    setShowDetail(false);
+                  }}
+                  className={`shrink-0 rounded-xl px-3 py-2 text-left border transition-all ${
+                    channelFilter === ch.channel_name
+                      ? "bg-orange-50 dark:bg-orange-900/30 border-orange-300 dark:border-orange-700"
+                      : "bg-white dark:bg-gray-800 border-gray-200 dark:border-gray-700"
+                  }`}
+                  style={{ minWidth: "140px", maxWidth: "170px" }}
+                >
+                  <div className="flex items-center gap-1.5">
+                    <svg className="w-3.5 h-3.5 shrink-0 text-red-500" viewBox="0 0 24 24" fill="currentColor"><path d="M23.498 6.186a3.016 3.016 0 0 0-2.122-2.136C19.505 3.545 12 3.545 12 3.545s-7.505 0-9.377.505A3.017 3.017 0 0 0 .502 6.186C0 8.07 0 12 0 12s0 3.93.502 5.814a3.016 3.016 0 0 0 2.122 2.136c1.871.505 9.376.505 9.376.505s7.505 0 9.377-.505a3.015 3.015 0 0 0 2.122-2.136C24 15.93 24 12 24 12s0-3.93-.502-5.814zM9.545 15.568V8.432L15.818 12l-6.273 3.568z"/></svg>
+                    <p className={`text-xs font-semibold truncate ${
+                      channelFilter === ch.channel_name ? "text-orange-600 dark:text-orange-400" : "dark:text-gray-200"
+                    }`}>{ch.channel_name}</p>
+                  </div>
+                  {ch.description && <p className="text-[10px] text-gray-500 dark:text-gray-400 truncate mt-0.5">{ch.description}</p>}
+                  {ch.tags && (
+                    <div className="flex gap-1 mt-1 overflow-hidden">
+                      {ch.tags.split(",").slice(0, 2).map((t) => (
+                        <span key={t} className="text-[9px] px-1.5 py-0.5 bg-gray-100 dark:bg-gray-700 text-gray-500 dark:text-gray-400 rounded-full whitespace-nowrap">{t.trim()}</span>
+                      ))}
+                    </div>
+                  )}
+                </button>
+              ))}
+            </div>
+          )}
+
           {/* Row 2: Toolbar */}
           <div className="flex items-center gap-2">
             <button
@@ -769,22 +821,6 @@ export default function Home() {
             <div className="bg-white/70 dark:bg-gray-900/70 backdrop-blur-md rounded-xl p-3.5 space-y-3 border border-white/50 dark:border-gray-700/50 shadow-sm">
               {/* Dropdown filters */}
               <div className="flex items-center gap-2 flex-wrap">
-                <select
-                  value={channelFilter}
-                  onChange={(e) => {
-                    setChannelFilter(e.target.value);
-                    setSelected(null);
-                    setShowDetail(false);
-                  }}
-                  className="border dark:border-gray-700 rounded-lg px-2.5 py-1.5 text-xs text-gray-600 dark:text-gray-300 bg-white dark:bg-gray-800"
-                >
-                  <option value="">📺 채널</option>
-                  {channels.map((ch) => (
-                    <option key={ch.id} value={ch.channel_name}>
-                      📺 {ch.channel_name}
-                    </option>
-                  ))}
-                </select>
                 <select
                   value={cuisineFilter}
                   onChange={(e) => setCuisineFilter(e.target.value)}

frontend/src/lib/api.ts

@@ -70,6 +70,8 @@ export interface Channel {
   channel_id: string;
   channel_name: string;
   title_filter: string | null;
+  description: string | null;
+  tags: string | null;
   video_count: number;
   last_scanned_at: string | null;
 }
@@ -350,6 +352,13 @@ export const api = {
     );
   },
 
+  updateChannel(id: string, data: { description?: string; tags?: string }) {
+    return fetchApi<{ ok: boolean }>(`/api/channels/${id}`, {
+      method: "PUT",
+      body: JSON.stringify(data),
+    });
+  },
+
   deleteChannel(channelId: string) {
     return fetchApi<{ ok: boolean }>(`/api/channels/${channelId}`, {
       method: "DELETE",
@@ -497,6 +506,12 @@ export const api = {
     });
   },
 
+  flushCache() {
+    return fetchApi<{ ok: boolean }>("/api/admin/cache-flush", {
+      method: "POST",
+    });
+  },
+
   runDaemonProcess(limit: number = 10) {
     return fetchApi<{ ok: boolean; restaurants_extracted: number }>(
       `/api/daemon/run/process?limit=${limit}`,