fix: resolve black and ruff lint errors in CI

Author: 1bcMax

blockrun_llm/__init__.py

@@ -193,4 +193,7 @@
     "create_solana_wallet",
     "load_solana_wallet",
     "get_solana_public_key",
+    # Cache utilities
+    "clear_cache",
+    "get_cost_log_summary",
 ]

blockrun_llm/cache.py

@@ -13,7 +13,6 @@
 
 import hashlib
 import json
-import os
 import re
 import time
 from datetime import datetime

blockrun_llm/client.py

@@ -561,6 +561,7 @@ def _request_with_payment(self, endpoint: str, body: Dict[str, Any]) -> ChatResp
         # Auto-retry on transient server errors
         if response.status_code in (502, 503):
             import time
+
             time.sleep(1)
             response = self._client.post(url, json=body, headers=req_headers)
 
@@ -665,6 +666,7 @@ def _handle_payment_and_retry(
         )
         if retry_response.status_code in (502, 503):
             import time
+
             time.sleep(1)
             retry_response = self._client.post(
                 url, json=body, headers=payment_headers, timeout=request_timeout
@@ -696,6 +698,7 @@ def _handle_payment_and_retry(
 
         # Save full response locally (cost log + response archive)
         from .cache import save_to_cache
+
         save_to_cache("/v1/chat/completions", body, response_data, cost_usd=cost_usd)
 
         return chat_response
@@ -723,6 +726,7 @@ def _request_with_payment_raw(self, endpoint: str, body: Dict[str, Any]) -> Dict
         # Auto-retry on transient server errors
         if response.status_code in (502, 503):
             import time
+
             time.sleep(1)
             response = self._client.post(url, json=body, headers=req_headers)
 
@@ -806,6 +810,7 @@ def _handle_payment_and_retry_raw(
         )
         if retry_response.status_code in (502, 503):
             import time
+
             time.sleep(1)
             retry_response = self._client.post(
                 url, json=body, headers=payment_headers, timeout=self.timeout
@@ -1522,6 +1527,7 @@ async def _request_with_payment(self, endpoint: str, body: Dict[str, Any]) -> Ch
         # Auto-retry on transient server errors
         if response.status_code in (502, 503):
             import asyncio
+
             await asyncio.sleep(1)
             response = await self._client.post(url, json=body, headers=req_headers)
 
@@ -1605,6 +1611,7 @@ async def _handle_payment_and_retry(
         )
         if retry_response.status_code in (502, 503):
             import asyncio
+
             await asyncio.sleep(1)
             retry_response = await self._client.post(
                 url, json=body, headers=payment_headers, timeout=request_timeout
@@ -1631,11 +1638,16 @@ async def _handle_payment_and_retry(
             price_info = resp_body.get("price", {})
         except Exception:
             pass
-        cost_usd = float(price_info.get("amount", 0)) if price_info else float(details.get("amount", 0)) / 1e6
+        cost_usd = (
+            float(price_info.get("amount", 0))
+            if price_info
+            else float(details.get("amount", 0)) / 1e6
+        )
         self._last_call_cost = cost_usd
 
         response_data = retry_response.json()
         from .cache import save_to_cache
+
         save_to_cache("/v1/chat/completions", body, response_data, cost_usd=cost_usd)
 
         return ChatResponse(**response_data)
@@ -1659,6 +1671,7 @@ async def _request_with_payment_raw(
         # Auto-retry on transient server errors
         if response.status_code in (502, 503):
             import asyncio
+
             await asyncio.sleep(1)
             response = await self._client.post(url, json=body, headers=req_headers)
 
@@ -1733,6 +1746,7 @@ async def _handle_payment_and_retry_raw(
         )
         if retry_response.status_code in (502, 503):
             import asyncio
+
             await asyncio.sleep(1)
             retry_response = await self._client.post(
                 url, json=body, headers=payment_headers, timeout=self.timeout