feat: add unblock-nag detection and redirect

Keyword-based detection for users repeatedly asking to be unblocked in
chat. Fires an LLM-generated snarky redirect (with static fallback),
tracks per-user nag count with escalating sass, and respects a 30-min
cooldown. Configurable via config.yaml unblock_nag section.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

utils/drama_tracker.py

@@ -29,6 +29,9 @@ class UserDrama:
     coherence_scores: list[float] = field(default_factory=list)
     baseline_coherence: float = 0.85
     last_coherence_alert_time: float = 0.0
+    # Unblock nagging tracking
+    unblock_nag_count: int = 0
+    last_unblock_nag_time: float = 0.0
     # Per-user LLM notes
     notes: str = ""
     # Known aliases/nicknames
@@ -256,6 +259,21 @@ class DramaTracker:
         """Return {user_id: [aliases]} for all users that have aliases set."""
         return {uid: user.aliases for uid, user in self._users.items() if user.aliases}
 
+    def record_unblock_nag(self, user_id: int) -> int:
+        user = self.get_user(user_id)
+        user.unblock_nag_count += 1
+        user.last_unblock_nag_time = time.time()
+        return user.unblock_nag_count
+
+    def can_unblock_remind(self, user_id: int, cooldown_minutes: int) -> bool:
+        user = self.get_user(user_id)
+        if user.last_unblock_nag_time == 0.0:
+            return True
+        return time.time() - user.last_unblock_nag_time > cooldown_minutes * 60
+
+    def get_unblock_nag_count(self, user_id: int) -> int:
+        return self.get_user(user_id).unblock_nag_count
+
     def reset_off_topic(self, user_id: int) -> None:
         user = self.get_user(user_id)
         user.off_topic_count = 0