tighten ai_auto_response participation and spam guard

plugins/ai_auto_response/config.toml

@@ -35,31 +35,31 @@ casual_topic = 0.35
 
 [flow]
 enable_flow_state = true
-flow_decay_per_minute = 12
-idle_threshold = 30
-warming_threshold = 48
-engaged_threshold = 78
+flow_decay_per_minute = 16
+idle_threshold = 36
+warming_threshold = 60
+engaged_threshold = 96
 at_bot_boost = 40
 question_boost = 30
-followup_boost = 20
-topic_boost = 10
-returning_member_boost = 6
-response_accepted_boost = 10
-ignored_reply_penalty = 20
-over_reply_penalty = 22
+followup_boost = 12
+topic_boost = 4
+returning_member_boost = 3
+response_accepted_boost = 6
+ignored_reply_penalty = 26
+over_reply_penalty = 32
 night_penalty = 30
-max_bot_reply_streak = 2
+max_bot_reply_streak = 1
 
 [cooldown]
-group_reply_cooldown_sec = 90
-same_user_followup_cooldown_sec = 18
+group_reply_cooldown_sec = 150
+same_user_followup_cooldown_sec = 28
 at_mention_min_interval_sec = 5
 at_mention_burst_window_sec = 90
-at_mention_burst_limit = 5
+at_mention_burst_limit = 4
 at_mention_silent_sec = 180
 directed_burst_window_sec = 240
-directed_burst_limit = 4
-directed_burst_silent_sec = 480
+directed_burst_limit = 3
+directed_burst_silent_sec = 600
 night_silent_hours = ["01:00-07:30"]
 
 [memory]
@@ -102,6 +102,11 @@ ignore_prefixes = ["/", "#"]
 ignore_exact = ["收到", "好的", "嗯", "哦", "6", "1", "？", "?"]
 min_text_length = 1
 
+[spam_guard]
+repeat_window_sec = 10
+repeat_threshold = 2
+repeat_min_length = 4
+
 [logging]
 debug = true