feat(classify): zero title-only titles, penalize <10min, add discover.candidate_min_score

标题仅含 require_title 不再计分（必须咻咻满+任一正向词）；时长 <10 分钟 -1（时长未知不扣）；新增 discover.candidate_min_score（默认=notify.min_score）控制是否进候选池，只过标题关的不再入池。库内 796 条：仅过标题关的 8 条从 1/3 分降为 0/-1，其余不变。

tests/test_classify.py

@@ -29,8 +29,13 @@ CLASSIFY = {
     "duration_boost": {"gt_30min": 1, "gt_60min": 2},
 }
 
+NEUTRAL = 600          # 10min：不触发 <10min 惩罚，也不触发 >30min 加权
+SHORT = 60             # 1min：<10min
+MID = 31 * 60          # >30min
+LONG = 61 * 60         # >60min
 
-def score(title, up_mid=100, duration=0, classify=CLASSIFY):
+
+def score(title, up_mid=100, duration=NEUTRAL, classify=CLASSIFY):
     return score_item(
         title=title, up_mid=up_mid,
         duration_seconds=duration, classify=classify,
@@ -68,88 +73,103 @@ def test_date_hits():
     assert date_hits("咻咻满 reaction") == []
 
 
+def test_title_only_scores_zero():
+    # 只过标题关（标题仅含 require_title、无任何正向词）不给分，时长也不计入
+    assert score("咻咻满") == 0
+    assert score("咻咻满", duration=LONG) == 0
+    assert score("咻咻满 日常") == 0
+    assert score("【咻咻满】交换余生（升2）") == 0
+    # 但时长未知(0) vs <10min 的惩罚不同
+    assert score("咻咻满", duration=0) == 0
+    assert score("咻咻满", duration=SHORT) == -1
+
+
 def test_hit_count_is_superlinear():
-    # 正向命中次数 n：require_title + reaction(0/1) + charge 词数 + weak 词数，得分 = n^2
-    assert score("咻咻满", duration=60) == 1
-    assert score("咻咻满 reaction", duration=60) == 4
-    assert score("咻咻满 反应", duration=60) == 4
-    assert score("咻咻满 reaction 充电", duration=60) == 9
-    assert score("咻咻满 reaction 加急充电专场", duration=60) == 25
-    assert score("咻咻满 充电", duration=60) == 4
-    assert score("咻咻满 加急专场", duration=60) == 9
-    assert score("咻咻满 双人", duration=60) == 4
-    assert score("咻咻满 reaction 双人", duration=60) == 9
+    # 正向命中次数 n：require_title（仅在有正向命中时计 1）+ reaction(0/1) + charge 词数 + weak 词数
+    assert score("咻咻满 reaction") == 4
+    assert score("咻咻满 反应") == 4
+    assert score("咻咻满 reaction 充电") == 9
+    assert score("咻咻满 reaction 加急充电专场") == 25
+    assert score("咻咻满 充电") == 4
+    assert score("咻咻满 加急专场") == 9
+    assert score("咻咻满 双人") == 4
+    assert score("咻咻满 reaction 双人") == 9
 
 
 def test_reaction_typo_and_gate():
     # "re" 兼容 reaction/reactio/reation 等拼写
-    assert score("咻咻满 reactio", duration=60) == 4
-    assert score("咻咻满 Reactuon 充电", duration=60) == 9
+    assert score("咻咻满 reactio") == 4
+    assert score("咻咻满 Reactuon 充电") == 9
     # 标题不含 require_title 直接 0 分
-    assert score("其他 UP 的 reaction", duration=61 * 60) == 0
-    assert score("普通视频 reactio", duration=61 * 60) == 0
+    assert score("其他 UP 的 reaction", duration=LONG) == 0
+    assert score("普通视频 reactio", duration=LONG) == 0
 
 
-def test_duration_boost():
-    assert score("咻咻满 reaction", duration=61 * 60) == 6
-    assert score("咻咻满 reaction", duration=31 * 60) == 5
+def test_duration_boost_and_short_penalty():
+    assert score("咻咻满 reaction", duration=LONG) == 6
+    assert score("咻咻满 reaction", duration=MID) == 5
     assert score("咻咻满 reaction", duration=30 * 60) == 4
-    assert score("咻咻满", duration=0) == 1
-    assert score("咻咻满", duration=61 * 60) == 3
-    assert score("咻咻满 双人", duration=61 * 60) == 6
+    assert score("咻咻满 reaction", duration=NEUTRAL) == 4
+    # 时长 <10 分钟 -1
+    assert score("咻咻满 reaction", duration=SHORT) == 3
+    assert score("咻咻满 reaction 充电", duration=SHORT) == 8
+    assert score("咻咻满 双人", duration=SHORT) == 3
+    # 时长未知(0) 不扣
+    assert score("咻咻满 reaction", duration=0) == 4
 
 
 def test_negative_single_and_multi():
-    # 单个负向词 -2
-    assert score("咻咻满 切片", duration=60) == -1
-    assert score("咻咻满 reaction 切片", duration=60) == 2
-    assert score("咻咻满 reaction 直播录像", duration=60) == 2
+    # 单个负向词 -2（"咻咻满 切片" 无正向命中，基础为 0）
+    assert score("咻咻满 切片") == -2
+    assert score("咻咻满 reaction 切片") == 2
+    assert score("咻咻满 reaction 直播录像") == 2
     # 2 个负向词：-2*2 -2 = -6
-    assert score("咻咻满 歌切 切片", duration=60) == -5
+    assert score("咻咻满 歌切 切片") == -6
     # 3 个负向词：-2*3 -6 = -12
-    assert score("咻咻满 reaction 歌切 切片 完整版", duration=60) == -8
+    assert score("咻咻满 reaction 歌切 切片 完整版") == -8
 
 
 def test_self_penalty():
-    assert score("咻咻满 reaction", up_mid=37754047, duration=60) == 1
+    assert score("咻咻满 reaction", up_mid=37754047) == 1
 
 
 def test_date_negative():
-    assert score("咻咻满 reaction 2026-10-28 完整录播", duration=60) == -2
-    assert score("咻咻满 reaction 2026-10-28", duration=60) == 0
-    assert score("咻咻满 充电 10月25日", duration=60) == 0
+    assert score("咻咻满 reaction 2026-10-28 完整录播") == -2
+    assert score("咻咻满 reaction 2026-10-28") == 0
+    assert score("咻咻满 充电 10月25日") == 0
     disabled = dict(CLASSIFY, date_negative=False)
-    assert score("咻咻满 reaction 2026-10-28", duration=60, classify=disabled) == 4
+    assert score("咻咻满 reaction 2026-10-28", classify=disabled) == 4
 
 
 def test_removed_words():
     # 纯享不再算负向
-    assert score("咻咻满 reaction 纯享受", duration=60) == 4
-    # 转场不再算正向（作为错别字忽略）
-    assert score("咻咻满 转场", duration=60) == 1
+    assert score("咻咻满 reaction 纯享受") == 4
+    # 转场不再算正向（作为错别字忽略），且只过标题关不给分
+    assert score("咻咻满 转场") == 0
 
 
 def test_multi_hit_survives_single_negative():
     # 回归：命中 咻咻满+reaction+充电 的 204min reaction 标题，扣掉单个「切片」后仍应过线
     title = "【充电2.0 | 咻咻满reaction】翻唱和直播切片完全是在开盲盒呀！不知道今天会开到哪一款"
     assert score(title, duration=204 * 60) == 9
-    assert score(title, duration=60) == 7
+    assert score(title, duration=NEUTRAL) == 7
 
 
 def main():
     test_title_helpers()
     test_parse_duration()
     test_date_hits()
+    test_title_only_scores_zero()
     test_hit_count_is_superlinear()
     test_reaction_typo_and_gate()
-    test_duration_boost()
+    test_duration_boost_and_short_penalty()
     test_negative_single_and_multi()
     test_self_penalty()
     test_date_negative()
     test_removed_words()
     test_multi_hit_survives_single_negative()
 
-    # 直播回放示例：命中 require+专场+路人+第一次 = 4 -> 16；39min > 30 -> +1 = 17
+    # 直播回放示例：命中 require+专场+路人+第一次 = 4 次 -> 16；39min > 30 -> +1 = 17
     title = "6【直播回放】咻咻满专场 路人第一次听满满唱歌 真的超级绝超级好听耶~"
     assert score(title, duration=39 * 60) == 17
     print("OK: 候选标题归一化、时长解析与分类打分测试全部通过")