feat: Perplexity Online Presence 종합 분석 + Apify Instagram 검색

B4 Perplexity: rewrote from narrow "find social accounts" to broad
"Online Presence 종합 분석" — finds Instagram, YouTube, Facebook,
TikTok, Naver, Kakao, 강남언니, 바비톡 in one query.

B5 Apify Instagram: generates handle candidates from clinic name
(english name, domain, _official, _ps, _clinic variants) and directly
checks each via Apify instagram-profile-scraper. Finds accounts that
web search misses.

Removed redundant B4b (platform presence) — now merged into B4.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

supabase/functions/discover-channels/index.ts

@@ -283,7 +283,7 @@ Deno.serve(async (req) => {
       } catch { /* skip */ }
     })());
 
-    // ─── B4. Perplexity: Supplement — catch what APIs missed ───
+    // ─── B4. Perplexity: Online Presence 종합 분석 ───
     if (PERPLEXITY_API_KEY) {
       stageBTasks.push((async () => {
         try {
@@ -293,10 +293,36 @@ Deno.serve(async (req) => {
             body: JSON.stringify({
               model: "sonar",
               messages: [
-                { role: "system", content: "You are a social media researcher. Search the web and find social media accounts. Respond ONLY with valid JSON, no explanation." },
+                { role: "system", content: "You are a digital marketing analyst specializing in Korean medical clinics. Search the web thoroughly and provide a comprehensive online presence report. Respond ONLY with valid JSON." },
-                { role: "user", content: `${resolvedName} 병원의 인스타그램, 유튜브, 페이스북, 틱톡, 네이버블로그, 카카오채널 계정을 검색해서 찾아줘. 검색 결과에서 발견된 계정을 모두 알려줘. 인스타그램은 여러 계정이 있을 수 있어.\n\n{"instagram": ["handle1", "handle2"], "youtube": "channel URL or @handle", "facebook": "page URL or name", "tiktok": "@handle", "naverBlog": "blog ID", "kakao": "channel ID"}` },
+                { role: "user", content: `"${resolvedName}" 병원의 Online Presence를 종합 분석해줘.
+
+아래 채널들을 모두 검색해서 찾아줘:
+- 인스타그램 계정 (병원 공식, 원장 개인, 영문 계정 등 여러개 있을 수 있음)
+- 유튜브 채널 (메인 채널, Q&A 채널 등)
+- 페이스북 페이지
+- 틱톡 계정
+- 네이버 블로그 (공식 블로그)
+- 카카오톡 채널
+- 강남언니 등록 여부 및 URL
+- 바비톡 등록 여부
+- 네이버 플레이스 등록 여부
+
+각 채널의 핸들/URL/계정명을 정확하게 알려줘.
+
+JSON format:
+{
+  "instagram": ["handle1", "handle2", "handle3"],
+  "youtube": ["channel URL or @handle1", "channel2"],
+  "facebook": "page URL or name",
+  "tiktok": "@handle",
+  "naverBlog": "blog ID",
+  "kakao": "channel ID",
+  "gangnamUnni": {"url": "https://gangnamunni.com/hospitals/...", "registered": true},
+  "naverPlace": {"registered": true},
+  "babitok": {"registered": true}
+}` },
               ],
-              temperature: 0.1,
+              temperature: 0.2,
             }),
           });
           const data = await res.json();
@@ -305,44 +331,69 @@ Deno.serve(async (req) => {
           if (jsonMatch) text = jsonMatch[1];
           const parsed = JSON.parse(text);
 
-          const ph = {
+          // Extract social handles
-            instagram: Array.isArray(parsed.instagram) ? parsed.instagram : parsed.instagram ? [parsed.instagram] : [],
+          const igArr = Array.isArray(parsed.instagram) ? parsed.instagram : parsed.instagram ? [parsed.instagram] : [];
-            youtube: parsed.youtube ? [parsed.youtube] : [],
+          const ytArr = Array.isArray(parsed.youtube) ? parsed.youtube : parsed.youtube ? [parsed.youtube] : [];
-            facebook: parsed.facebook ? [parsed.facebook] : [],
+          if (igArr.length) apiHandles.instagram!.push(...igArr);
-            naverBlog: parsed.naverBlog ? [parsed.naverBlog] : [],
+          if (ytArr.length) apiHandles.youtube!.push(...ytArr);
-            tiktok: parsed.tiktok ? [parsed.tiktok] : [],
+          if (parsed.facebook) apiHandles.facebook!.push(typeof parsed.facebook === 'string' ? parsed.facebook : '');
-            kakao: parsed.kakao ? [parsed.kakao] : [],
+          if (parsed.naverBlog) apiHandles.naverBlog!.push(typeof parsed.naverBlog === 'string' ? parsed.naverBlog : '');
-          };
+          if (parsed.tiktok) apiHandles.tiktok!.push(typeof parsed.tiktok === 'string' ? parsed.tiktok : '');
-          if (ph.instagram.length) apiHandles.instagram!.push(...ph.instagram);
+          if (parsed.kakao) apiHandles.kakao!.push(typeof parsed.kakao === 'string' ? parsed.kakao : '');
-          if (ph.youtube.length) apiHandles.youtube!.push(...ph.youtube);
+
-          if (ph.facebook.length) apiHandles.facebook!.push(...ph.facebook);
+          // Extract platform presence hints
-          if (ph.naverBlog.length) apiHandles.naverBlog!.push(...ph.naverBlog);
+          if (parsed.gangnamUnni?.url) gangnamUnniHintUrl = parsed.gangnamUnni.url;
-          if (ph.tiktok.length) apiHandles.tiktok!.push(...ph.tiktok);
-          if (ph.kakao.length) apiHandles.kakao!.push(...ph.kakao);
         } catch { /* skip */ }
       })());
 
-      // B4b. Platform presence (강남언니, 바비톡)
+    }
+
+    // ─── B5. Apify Instagram: Direct profile search by clinic name variants ───
+    const APIFY_TOKEN = Deno.env.get("APIFY_API_TOKEN") || "";
+    if (APIFY_TOKEN) {
       stageBTasks.push((async () => {
         try {
-          const res = await fetch("https://api.perplexity.ai/chat/completions", {
+          // Generate handle candidates from clinic name
-            method: "POST",
+          const baseName = resolvedName.replace(/성형외과|병원|의원|클리닉|피부과/g, '').trim().toLowerCase();
-            headers: { "Content-Type": "application/json", Authorization: `Bearer ${PERPLEXITY_API_KEY}` },
+          const baseNameEn = (clinic.clinicNameEn || '').replace(/\s+/g, '').toLowerCase();
-            body: JSON.stringify({
+          const candidates: string[] = [];
-              model: "sonar",
+          if (baseNameEn && baseNameEn.length >= 3) {
-              messages: [
+            candidates.push(baseNameEn, `${baseNameEn}_official`, `${baseNameEn}_ps`, `${baseNameEn}_clinic`);
-                { role: "system", content: "You are a medical platform researcher. Search the web for clinic listings. Respond ONLY with valid JSON, no explanation." },
+          }
-                { role: "user", content: `${resolvedName} 병원이 강남언니(gangnamunni.com), 네이버 플레이스, 바비톡에 등록되어 있는지 검색해줘. URL도 찾아줘.\n\n{"gangnamUnni": {"registered": true, "url": "https://gangnamunni.com/hospitals/...", "rating": 9.5}, "naverPlace": {"registered": true}, "babitok": {"registered": false}}` },
+          if (baseName && /^[a-zA-Z]/.test(baseName)) {
-              ],
+            candidates.push(baseName, `${baseName}_official`, `${baseName}_ps`);
-              temperature: 0.1,
+          }
-            }),
+          // Also try domain-based
-          });
+          const domainBase = new URL(url).hostname.replace('www.', '').split('.')[0].toLowerCase();
-          const data = await res.json();
+          if (domainBase.length >= 3 && !candidates.includes(domainBase)) {
-          let text = data.choices?.[0]?.message?.content || "";
+            candidates.push(domainBase, `${domainBase}_official`);
-          const jsonMatch = text.match(/```(?:json)?\n?([\s\S]*?)```/);
+          }
-          if (jsonMatch) text = jsonMatch[1];
+
-          const parsed = JSON.parse(text);
+          // Quick check each candidate with Apify
-          if (parsed.gangnamUnni?.url) gangnamUnniHintUrl = parsed.gangnamUnni.url;
+          for (const handle of candidates.slice(0, 6)) {
+            try {
+              const apifyRes = await fetch(
+                `${APIFY_BASE}/acts/apify~instagram-profile-scraper/runs?token=${APIFY_TOKEN}&waitForFinish=30`,
+                {
+                  method: "POST",
+                  headers: { "Content-Type": "application/json" },
+                  body: JSON.stringify({ usernames: [handle], resultsLimit: 1 }),
+                }
+              );
+              const run = await apifyRes.json();
+              const datasetId = run.data?.defaultDatasetId;
+              if (!datasetId) continue;
+
+              const itemsRes = await fetch(`${APIFY_BASE}/datasets/${datasetId}/items?token=${APIFY_TOKEN}&limit=1`);
+              const items = await itemsRes.json();
+              const profile = (items as Record<string, unknown>[])[0];
+
+              if (profile && !profile.error && (profile.followersCount as number) >= 50) {
+                apiHandles.instagram!.push(profile.username as string || handle);
+                break; // Found one valid — stop searching
+              }
+            } catch { /* try next */ }
+          }
         } catch { /* skip */ }
       })());
     }