feat: 再索要墙渠道精确化——索要缺失渠道放行(双要前置)

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

app/services/conversation.py

@@ -207,8 +207,12 @@ class ConversationManager:
         # 方案B'(13.7): 句子粒度门控——干净句子逐句流出(恢复打字机),
         # 违规句永不流出:已流出内容全部干净,违规时接过渡话术收尾并掐断生成。
         # F6(D6联动): 客户已留联系方式时,收尾话术不得再索要——路由 contact 版
-        has_contact = bool(split_validate(
-            normalize_contacts(effective_raw.get("联系方式")))[0])
+        # 渠道精确化(2026-10-08): confirmed 渠道集合传给再索要墙——
+        # 索要缺失渠道(如已有 phone 问邮箱)放行,是 Task 3 邮箱轻补的前提
+        _confirmed_contacts, _ = split_validate(
+            normalize_contacts(effective_raw.get("联系方式")))
+        has_contact = bool(_confirmed_contacts)
+        _confirmed_channels = set(_confirmed_contacts)
 
         yield {"type": "stream_start"}
         emitted = ""
@@ -235,8 +239,9 @@ class ConversationManager:
                     violation = "no_contact"
                     break
                 # Task 5b 再索要墙: 已留资时索要句静默丢弃(丢句不掐断,
-                # 其余句子照常流出——软于两墙的掐断+替换)
-                if has_contact and asks_contact(sentence):
+                # 其余句子照常流出——软于两墙的掐断+替换);
+                # 渠道精确化: 只丢索要已在手渠道的句子
+                if has_contact and asks_contact(sentence, _confirmed_channels):
                     logger.warning("Re-ask wall dropped sentence (conv=%s): %r",
                                    conv.id, sentence[:60])
                     dropped_ask = True
@@ -255,7 +260,7 @@ class ConversationManager:
                 violated = True
                 dirty = pending
                 violation = "no_contact"
-            elif has_contact and asks_contact(pending):
+            elif has_contact and asks_contact(pending, _confirmed_channels):
                 # Task 5b 再索要墙: 尾巴是索要句 → 静默丢弃(不流出不掐断)
                 logger.warning("Re-ask wall dropped tail (conv=%s): %r",
                                conv.id, pending[:60])