refactor: use shared make_headers instead of inline GitHub header dicts

gittensor/cli/miner_commands/post.py

@@ -15,6 +15,7 @@
 from rich.table import Table
 
 from gittensor.constants import BASE_GITHUB_API_URL
+from gittensor.utils.github_api_tools import make_headers
 
 console = Console()
 
@@ -196,7 +197,7 @@ async def _broadcast():
 
 def _validate_pat_locally(pat: str) -> bool:
     """Validate PAT mirrors the validator-side checks: user identity + GraphQL access."""
-    headers = {'Authorization': f'token {pat}', 'Accept': 'application/vnd.github.v3+json'}
+    headers = make_headers(pat)
     try:
         # Check basic auth
         user_resp = requests.get(f'{BASE_GITHUB_API_URL}/user', headers=headers, timeout=15)

gittensor/validator/issue_discovery/repo_scan.py

@@ -10,23 +10,24 @@
 Uses the validator PAT for all API calls. Rate-limited by per-repo and global caps.
 """
 
 import asyncio
 from datetime import datetime, timedelta, timezone
 from typing import Dict, List, Optional, Set, Tuple
 
 import bittensor as bt
 import requests
 
 from gittensor.classes import Issue, MinerEvaluation
+from gittensor.utils.github_api_tools import make_headers
 from gittensor.constants import (
     BASE_GITHUB_API_URL,
     PR_LOOKBACK_DAYS,
     REPO_SCAN_CONCURRENCY,
     REPO_SCAN_GLOBAL_CAP,
     REPO_SCAN_PER_REPO_CAP,
 )
 from gittensor.utils.github_api_tools import find_solver_from_cross_references
 from gittensor.validator.utils.load_weights import RepositoryConfig
 
 
 async def scan_closed_issues(
@@ -202,7 +203,7 @@
 
 def _fetch_closed_issues(repo_name: str, since: str, token: str) -> List[dict]:
     """Fetch closed issues from a repo via REST API with pagination."""
-    headers = {'Authorization': f'token {token}', 'Accept': 'application/vnd.github.v3+json'}
+    headers = make_headers(token)
     all_issues: List[dict] = []
     page = 1