refactor: remove duplicate scripts + JSON constants + update docs

scripts/prune_branches.py

@@ -16,7 +16,6 @@ from datetime import datetime, timedelta
 from mo_data import read_decisions
 from mofin_db import get_conn, write_holding_strategy
 
-DECISIONS_PATH = "/home/hmo/web-dashboard/data/decisions.json"
 PRUNE_LOG = "/home/hmo/MoFin/data/prune_log.json"
 
 
@@ -33,10 +32,6 @@ def save_decisions(data):
         conn.close()
     except Exception:
         pass
-    # [migrated to DB] — cold backup removed
-    # with open(DECISIONS_PATH, "w") as f:
-    #     json.dump(data, f, indent=2, ensure_ascii=False)
-
 
 def main():
     data = load_decisions()