Add hub perpetual-options hedge calculator tab and sizing formula.

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

manual_trading_hub/hub.py

@@ -1269,6 +1269,18 @@ class RollCalculatorBody(BaseModel):
     base: str = "ETH"
 
 
+class PerpOptionsCalculatorBody(BaseModel):
+    base: str = "ETH"
+    spot: float = Field(gt=0)
+    capital_usdt: float = Field(gt=0)
+    target_profit_u: float = Field(ge=0)
+    move_mode: str = "points"
+    move_value: float = Field(gt=0)
+    perp_leverage: float = Field(gt=0)
+    option_leverage: float = Field(gt=0)
+    ct_mult: float = Field(default=0.01, gt=0)
+
+
 class CompareOptionLegBody(BaseModel):
     opt_type: str = "C"
     strike: float | None = None
@@ -1350,6 +1362,26 @@ def api_calculator_roll(body: RollCalculatorBody):
     return {"ok": True, "data": data}
 
 
+@app.post("/api/calculator/perp-options")
+def api_calculator_perp_options(body: PerpOptionsCalculatorBody):
+    from lib.hub.hub_perp_options_calc_lib import calc_perp_options_hedge
+
+    data, err = calc_perp_options_hedge(
+        base=body.base,
+        spot=body.spot,
+        capital_usdt=body.capital_usdt,
+        target_profit_u=body.target_profit_u,
+        move_mode=body.move_mode,
+        move_value=body.move_value,
+        perp_leverage=body.perp_leverage,
+        option_leverage=body.option_leverage,
+        ct_mult=body.ct_mult,
+    )
+    if err:
+        return JSONResponse({"ok": False, "msg": err}, status_code=400)
+    return {"ok": True, "data": data}
+
+
 @app.post("/api/compare/calc")
 def api_compare_calc(body: CompareBody):
     from lib.hub.hub_compare_lib import run_compare