refactor: 프로젝트명 bithumb으로 변경 및 futures 파이프라인 제거

deepcoin 패키지를 bithumb으로 rename하고, 3단계 live 운영·사이징 튜닝·텔레그램 알림을 통합한다.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/00_download_candles.py

@@ -16,10 +16,10 @@ if str(SRC) not in sys.path:
 
 from dataclasses import replace
 
-from deepcoin.config import load_settings
-from deepcoin.data.candle_store import CandleStore
-from deepcoin.data.downloader import CandleDownloader
-from deepcoin.data.intervals import INTERVAL_1MIN, estimate_download_requests, interval_label
+from bithumb.config import load_settings
+from bithumb.data.candle_store import CandleStore
+from bithumb.data.downloader import CandleDownloader
+from bithumb.data.intervals import INTERVAL_1MIN, estimate_download_requests, interval_label
 
 
 def _configure_logging(verbose: bool) -> None: