fix: remove OIDC id-token permission and add github_token input (#545)

Removes the OIDC id-token permission requirement and adds explicit github_token input to both workflow files. This simplifies authentication by using the standard GITHUB_TOKEN instead of requiring OIDC token exchange.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>

.github/workflows/issue-triage.yml

@@ -11,7 +11,6 @@ jobs:
     permissions:
       contents: read
       issues: write
-      id-token: write
 
     steps:
       - name: Checkout repository
@@ -102,6 +101,7 @@ jobs:
         with:
           prompt: $(cat /tmp/claude-prompts/triage-prompt.txt)
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
           claude_args: |
             --allowedTools Bash(gh label list),mcp__github__get_issue,mcp__github__get_issue_comments,mcp__github__update_issue,mcp__github__search_issues,mcp__github__list_issues
             --mcp-config /tmp/mcp-config/mcp-servers.json