同步完成后自动刷新页面更新数据条数，修复持仓同步未提交事务，加大按钮间距

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

ft-app/app/collector.py

@@ -5,7 +5,7 @@ from app.database import SessionLocal
 from app.models import DailyBar, Contract
 from app.engine.lock_strategy import compute_amp_5d
 
-_progress = {"running": False, "label": "", "done": 0, "total": 0, "finished": False}
+_progress = {"running": False, "label": "", "done": 0, "total": 0, "result": 0, "finished": False}
 _lock = threading.Lock()
 
 
@@ -78,6 +78,8 @@ def sync_contract_bars_bg(contract_code: str) -> bool:
                 db.flush()
                 _recompute_amp(db, code, from_date=min_date)
             db.commit()
+            with _lock:
+                _progress["result"] = inserted
         finally:
             db.close()
 
@@ -132,6 +134,9 @@ def sync_positions_bg(contract_code: str) -> bool:
                 with _lock:
                     _progress["done"] = i + 1
                     _progress["label"] = f"同步持仓 {code} · {i + 1}/{total_missing} 天"
+            db.commit()
+            with _lock:
+                _progress["result"] = inserted
         finally:
             db.close()