Add strategy residual table with manual close at panel bottom.

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

backend/app/api/plan.py

@@ -1,8 +1,10 @@
 from __future__ import annotations
 
+import asyncio
 from typing import Annotated
 
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, HTTPException, status
+from pydantic import BaseModel, Field
 
 from ..strategy import get_engine
 from .auth import require_user
@@ -28,3 +30,28 @@ async def plan_pause(_user: Annotated[str, Depends(require_user)]) -> dict:
 @router.post("/emergency-close")
 async def plan_emergency(_user: Annotated[str, Depends(require_user)]) -> dict:
     return await get_engine().emergency_close()
+
+
+class ResidualCloseBody(BaseModel):
+    group_id: str = Field(min_length=1, max_length=128)
+
+
+@router.post("/residual/close")
+async def plan_residual_close(
+    body: ResidualCloseBody,
+    _user: Annotated[str, Depends(require_user)],
+) -> dict:
+    """手动平单条残留：只验流动性，不验权利金回收比例。"""
+    matcher = get_engine().matcher
+    result = await asyncio.to_thread(matcher.close_residual_manual, body.group_id)
+    if not result.ok:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=result.detail or "平残留失败",
+        )
+    return {
+        "ok": True,
+        "detail": result.detail,
+        "data": result.data,
+        "liquidity_wait": result.liquidity_wait,
+    }

backend/app/strategy/engine.py

@@ -245,7 +245,7 @@ class StrategyEngine:
             "open_capacity": open_cap,
             "last_error": last_error,
             "position": upl,
-            "residuals": self.matcher.list_residual_options(pending_only=True),
+            "residuals": self.matcher.list_residual_options_enriched(),
             "ledger": self.ledger.snapshot(),
             "mode": "SIM" if s.is_sim else "LIVE",
             "sim": s.is_sim,