feat: Add DART strategy and related configurations

ㅇ
Changes:
- Introduced the DART strategy to the trading system, including its configuration and integration into the existing framework.
- Updated the database schema to include DART-specific tables for disclosures and watchlists.
- Enhanced the backtesting and parameter search functionalities to support the DART strategy.
- Implemented new rules for browser verification and API interactions to ensure compliance with the updated DART strategy.

Impact:
- These additions expand the trading capabilities of the system, allowing for more comprehensive analysis and execution of DART-related strategies, while maintaining system integrity and performance.

kis_trader/network/ws_manager.py

@@ -356,8 +356,8 @@ class WSManager:
         for code in sorted(kis_now - kis_want):
             # KIS 는 grace 미적용 (영구+보유만) — 즉시 해제
             self.ws_cache.unsubscribe(code)
-            if code not in kw_want and self.candle_agg:
-                self.candle_agg.remove_code(code)
+            if code not in kw_want:
+                self._remove_candle_ram(code)
 
         with self._kiwoom_ws._sub_lock:
             kw_now2 = set(self._kiwoom_ws._subscribed)
@@ -366,8 +366,8 @@ class WSManager:
             if self._note_leave_for_grace(code):
                 continue
             self._kiwoom_ws.unsubscribe(code)
-            if code not in kis_want and self.candle_agg:
-                self.candle_agg.remove_code(code)
+            if code not in kis_want:
+                self._remove_candle_ram(code)
             with self._lock:
                 is_perm = code in self._permanent_codes
             if self.tick_recorder and code not in kw_want and not is_perm:
@@ -544,8 +544,7 @@ class WSManager:
 
         if not still_refs and not is_permanent and self.ws_cache:
             self.ws_cache.unsubscribe(code)
-            if self.candle_agg:
-                self.candle_agg.remove_code(code)
+            self._remove_candle_ram(code)
             if self.tick_recorder:
                 self.tick_recorder.remove_code(code)
             if self.trigger_snapshot_recorder:
@@ -651,13 +650,44 @@ class WSManager:
         except Exception:
             return []
 
-    def fill_gap(self, codes: Optional[Iterable[str]] = None) -> None:
-        """외부에서 수동으로 갭 보정 트리거 (비동기: 큐 등록 후 즉시 리턴)."""
+    def fill_gap(
+        self,
+        codes: Optional[Iterable[str]] = None,
+        *,
+        force: bool = False,
+    ) -> None:
+        """외부에서 수동으로 갭 보정 트리거 (비동기: 큐 등록 후 즉시 리턴).
+
+        force=True: 이미 ``_gap_filled`` 여도 재큐 (RAM 삭제 후 재ENTER·봉부족 복구).
+        """
         if codes is None:
             self._trigger_bulk_refill_async()
         else:
             for c in codes:
-                self._enqueue_gap_fill(c)
+                self._enqueue_gap_fill(c, force=bool(force), priority=bool(force))
+
+    def _clear_gap_fill_state(self, code: str) -> None:
+        """RAM 봉 삭제와 짝 — 갭보정 완료 마커 해제.
+
+        EXIT→remove_code 후 ``_gap_filled`` 가 남으면 재ENTER 시 갭보정이 스킵되고
+        WS 실시간 몇 봉만으로 '봉부족'이 난다 (전 전략 공통).
+        """
+        if not code:
+            return
+        with self._gap_lock:
+            self._gap_filled.discard(code)
+            self._gap_tf_ok.pop(code, None)
+
+    def _remove_candle_ram(self, code: str) -> None:
+        """구독 해제 시 RAM 봉 정리 + 갭보정 재실행 가능하도록 상태 리셋."""
+        if not code:
+            return
+        if self.candle_agg:
+            try:
+                self.candle_agg.remove_code(code)
+            except Exception:
+                pass
+        self._clear_gap_fill_state(code)
 
     # ------------------------------------------------------------------
     # 내부: 갭 보정 — 백그라운드 워커 파이프라인