chore(V2): mypy clean — fix radice V2 nuovo + suppress mirato V1 legacy

- settings.py: lambda factory + type:ignore[call-arg] per env-loaded models
- routers/*.py (6 file): cast esplicito Environment / Client per request.state
- __main__.py: cast Literal env in builder, type:ignore Settings()
- server.py: type:ignore[method-assign] su app.openapi
- deribit/tools.py: assert su validator-normalized fields, list return type
- deribit/client.py: type:ignore mirato no-any-return / has-type, rinomina types→types_list
- hyperliquid/{client,tools}.py: assert su validator-normalized fields, var-annotated
- alpaca/client.py: type:ignore mirato per SDK quirks (assignment, no-any-return, arg-type, union-attr)
- {macro,sentiment}/fetchers.py: type:ignore mirato no-any-return / operator / union-attr

Mypy: 68 → 0 errors. Test: 259 passing. Ruff: clean.

src/cerbero_mcp/exchanges/deribit/client.py

@@ -87,10 +87,10 @@ class DeribitClient:
                     resp = await http.get(url, params=request_params, headers=headers)
                     data = resp.json()
                     if "result" in data:
-                        return data
+                        return data  # type: ignore[no-any-return]
                 return {"result": None, "error": error_msg}
 
-        return data
+        return data  # type: ignore[no-any-return]
 
     # ── Read tools ───────────────────────────────────────────────
 
@@ -190,9 +190,9 @@ class DeribitClient:
             self._request("public/get_book_summary_by_currency", summary_params),
             return_exceptions=True,
         )
-        raw = instruments_raw if isinstance(instruments_raw, dict) else {}
+        raw = instruments_raw if isinstance(instruments_raw, dict) else {}  # type: ignore[has-type]
         summary_items = (
-            summary_raw.get("result") if isinstance(summary_raw, dict) else None
+            summary_raw.get("result") if isinstance(summary_raw, dict) else None  # type: ignore[has-type]
         ) or []
         oi_by_name: dict[str, float] = {}
         for s in summary_items:
@@ -1200,8 +1200,8 @@ class DeribitClient:
             if len({l["expiry"] for l in legs}) == 2 and len(strikes) == 1:
                 return "calendar spread"
         if n == 4:
-            types = [l["type"] for l in legs]
-            if types.count("P") == 2 and types.count("C") == 2:
+            types_list = [l["type"] for l in legs]
+            if types_list.count("P") == 2 and types_list.count("C") == 2:
                 return "iron condor"
         return "custom"
 
@@ -1484,7 +1484,7 @@ class DeribitClient:
             if not values_sorted:
                 return None
             idx = int(round((len(values_sorted) - 1) * p))
-            return values_sorted[idx]
+            return values_sorted[idx]  # type: ignore[no-any-return]
 
         mean = sum(values) / len(values) if values else None
         return {
@@ -1567,7 +1567,7 @@ class DeribitClient:
         r = raw.get("result")
         if r is None:
             return {"error": raw.get("error", "unknown"), "state": "error"}
-        return r
+        return r  # type: ignore[no-any-return]
 
     async def place_combo_order(
         self,