test: Task1质量审查补测——④真覆盖/③保底覆盖/分组注释/渠道映射查表化

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

app/services/boundary_filter.py

@@ -276,17 +276,24 @@ REASK_PATTERNS = [
 # 渠道精确化(2026-10-08 spec §4.4): REASK 模式命中后按渠道词分辨——
 # 索要已在手的渠道才丢,索要缺失渠道放行(双要补邮箱场景);泛渠道词
 # 只要手上有任何号码渠道即丢(宁丢勿放);精确+泛同句共存时按①②自然
-# 实现任一命中判丢。中文泛词不用 \b(CJK 无词边界,"电话"前 \b 永不成立)。
+# 实现任一命中判丢。中文泛词不用 \b(CJK 无词边界,"电话"前 \b 在
+# 主流 CJK 连写形态下不成立)。
 _PRECISE_CHANNEL_RE = re.compile(r"whatsapp|e-?mail|邮箱|微信|wechat", re.I)
+# 匹配形态→渠道键查表(对齐 contact_pipeline._NUMBER_FIRST_CHANNEL 先例:
+# 未来扩 _PRECISE_CHANNEL_RE 加新渠道词而漏配此表 → KeyError 显性失败,
+# 而非链式三元静默兜到 whatsapp)
+_PRECISE_CHANNEL_MAP = {
+    "whatsapp": "whatsapp",
+    "e-mail": "email", "email": "email", "邮箱": "email",
+    "wechat": "wechat", "微信": "wechat",
+}
 _GENERIC_CONTACT_RE = re.compile(r"\b(?:number|phone|contact)\b|电话|联系方式|号码", re.I)
 
 
 def _precise_channels_in(s: str) -> set:
     out = set()
     for m in _PRECISE_CHANNEL_RE.finditer(s):
-        w = m.group(0).lower()
-        out.add("email" if w in ("e-mail", "email", "邮箱")
-                else "wechat" if w in ("微信", "wechat") else "whatsapp")
+        out.add(_PRECISE_CHANNEL_MAP[m.group(0).lower()])
     return out