feat(channels): 管理面板消息日志——chat_messages 加 adapter_id + 配置级/平台/总览三粒度端点

后端：
- 迁移 0007：chat_messages 加 adapter_id 列 + 索引
- history.Message 加 AdapterID；persistToMain/persistIsolated 传适配器名(a.Name())
- channelbridge: 4 个持久化点 + registerSilenced 传 a；light.go registerSilenced 签名加 a
- Store 新增 ListAdapterLog(?adapter=, 不排除主会话)/ListAllLog(adapter_id!='', 总览)；ListPlatformLog 保留
- 新端点 GET /api/v1/admin/channels/messages：?adapter= 配置级 / ?platform= 平台 / 无参=总览，historyMessage 加 adapterId
- 测试：ListAdapterLog/ListAllLog 过滤用例 + 端点粒度用例 + 桥接持久化断言

前端：渠道管理每配置(账号)「消息日志」按钮 + 页顶「适配器总览日志」入口 + ChannelLogPanel 弹窗(总览/配置级)，Miuix 风格，build 绿。

internal/services/gateway/history_handler_test.go

@@ -168,6 +168,77 @@ func TestHistoryListMessagesPlatformFilter(t *testing.T) {
 	}
 }
 
+// handleChannelMessagesGranularity exercises the admin adapter log endpoint at each
+// granularity: a single adapter config (?adapter=), a whole platform (?platform=),
+// and the full IM adapter overview (neither). It asserts adapterId is carried on the
+// DTO so the panel can label the source adapter config.
+func TestHistoryChannelMessagesGranularity(t *testing.T) {
+	t.Parallel()
+	_, ts, jwt, st := newHistoryEnv(t)
+	ctx := context.Background()
+	for _, m := range []history.Message{
+		{SessionID: history.MainSessionID, Role: history.RoleUser, Content: "kook-owner", Platform: "kook", AdapterID: "kook:3bef", CreatedAt: 1000},
+		{SessionID: "sess-g", Role: history.RoleUser, Content: "kook-group", Platform: "kook", AdapterID: "kook:3bef", SenderName: "张三", CreatedAt: 2000},
+		{SessionID: "sess-t", Role: history.RoleUser, Content: "tg-group", Platform: "telegram", AdapterID: "telegram:conf0", CreatedAt: 3000},
+		{SessionID: history.MainSessionID, Role: history.RoleUser, Content: "web-msg", Platform: history.PlatformWeb, CreatedAt: 4000},
+	} {
+		if err := st.Append(ctx, m); err != nil {
+			t.Fatalf("seed %q: %v", m.Content, err)
+		}
+	}
+	tok := signAny(t, jwt, "acct", auth.RoleOwner)
+
+	// ?adapter=kook:3bef → only that adapter config, both the owner mirror and the
+	// group message, newest first, and the DTO carries adapterId.
+	resp, body := doReq(t, http.MethodGet, ts.URL+"/api/v1/admin/channels/messages?adapter=kook:3bef", nil, tok)
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("adapter status = %d, want 200 (body=%s)", resp.StatusCode, body)
+	}
+	var byAdapter []historyMessage
+	decodeDataSlice(t, body, &byAdapter)
+	if len(byAdapter) != 2 {
+		t.Fatalf("adapter page = %d, want 2 (%+v)", len(byAdapter), byAdapter)
+	}
+	if byAdapter[0].Content != "kook-group" || byAdapter[0].AdapterID != "kook:3bef" {
+		t.Fatalf("adapter[0] = %+v, want kook-group with adapterId", byAdapter[0])
+	}
+	if byAdapter[1].Content != "kook-owner" || byAdapter[1].SessionID != history.MainSessionID {
+		t.Fatalf("adapter[1] = %+v, want kook-owner on main session", byAdapter[1])
+	}
+
+	// ?platform=kook → the platform lane across isolated sessions (owner-private
+	// mirror excluded, matching handleChannelPlatformLog semantics).
+	resp, body = doReq(t, http.MethodGet, ts.URL+"/api/v1/admin/channels/messages?platform=kook", nil, tok)
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("platform status = %d, want 200 (body=%s)", resp.StatusCode, body)
+	}
+	var byPlatform []historyMessage
+	decodeDataSlice(t, body, &byPlatform)
+	if len(byPlatform) != 1 || byPlatform[0].Content != "kook-group" {
+		t.Fatalf("platform page = %+v, want [kook-group]", byPlatform)
+	}
+
+	// No filter → the full IM adapter overview (adapter_id != ''), web excluded.
+	resp, body = doReq(t, http.MethodGet, ts.URL+"/api/v1/admin/channels/messages", nil, tok)
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("all status = %d, want 200 (body=%s)", resp.StatusCode, body)
+	}
+	var all []historyMessage
+	decodeDataSlice(t, body, &all)
+	if len(all) != 3 {
+		t.Fatalf("all page = %d, want 3 (%+v)", len(all), all)
+	}
+	if all[0].Content != "tg-group" || all[1].Content != "kook-group" || all[2].Content != "kook-owner" {
+		t.Fatalf("all order = %+v, want [tg-group kook-group kook-owner]", all)
+	}
+
+	// Invalid before → 400.
+	resp, body = doReq(t, http.MethodGet, ts.URL+"/api/v1/admin/channels/messages?before=abc", nil, tok)
+	if resp.StatusCode != http.StatusBadRequest {
+		t.Fatalf("invalid before status = %d, want 400 (body=%s)", resp.StatusCode, body)
+	}
+}
+
 func TestHistoryDeleteSubSession(t *testing.T) {
 	t.Parallel()
 	_, ts, jwt, st := newHistoryEnv(t)