feat(dashboard): merge lists button, drop STT test, add bot/log settings, barge-in

Dashboard changes requested by the user:
- Merge 화이트리스트/블랙리스트 into one "👤 유저 등록/관리" button (the modal
  already holds both lists).
- Remove the 음성 인식(STT) 테스트 section and its client JS.
- Add collapsible "⚙️ 봇 관련 설정" with a barge-in toggle: "유저 목소리 들을 때
  봇이 말하던 것 중지" (default on). Stored via /api/bot/settings; the bot reads
  it on its report round-trip and calls voicePlayer.stop() when an allowed user
  starts speaking (dave/bot.mjs).
- Add collapsible "🧹 로그 관련 설정" with a "잡음 로그 표시 안 함" toggle (default
  on, localStorage-backed): hides turns whose 들음 is (빈 결과) or 답변 is [잡음].
- Fix the fixed event/error log dock covering the bottom-most turn: syncDockPad()
  pads main by the dock height (on load, log render, toggle, resize).

BotControl gains a settings store; /api/bot/report now also returns settings.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

wsai/bot_control.py

@@ -32,6 +32,20 @@ class BotControl:
         # Per-guild listen filter. Empty whitelist => listen to everyone;
         # blacklist always excludes. Users and roles both supported.
         self._lists: dict[str, dict[str, Any]] = {}
+        # Bot behaviour settings the dashboard toggles and the bot reads on each
+        # report. bargeIn: stop the bot's current TTS the moment a user speaks.
+        self._settings: dict[str, Any] = {"bargeIn": True}
+
+    # -- bot behaviour settings ------------------------------------------ #
+    def get_settings(self) -> dict[str, Any]:
+        with self._lock:
+            return dict(self._settings)
+
+    def set_settings(self, data: dict[str, Any]) -> dict[str, Any]:
+        with self._lock:
+            if "bargeIn" in data:
+                self._settings["bargeIn"] = bool(data["bargeIn"])
+            return dict(self._settings)
 
     # -- whitelist / blacklist (per guild) ------------------------------- #
     @staticmethod