[Bug] Sub-agent stuck on research jobs with no unblock mechanism or status tracking

Bug Description
sub agent on research jobs always get stuck and have to kill the job and ask are you stuck ? should be able to track sub agents status better and have option to unblock the sub-agent.

Environment Info

• Platform: win32
• Terminal: vscode
• Version: 2.1.74
• Feedback ID: 540ce8d3-70d5-45c8-b69b-449403efe231

Errors

[{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at SEH (B:/~BUN/root/src/entrypoints/cli.js:2568:18704)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-12T20:42:06.681Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at SEH (B:/~BUN/root/src/entrypoints/cli.js:2568:18704)\n    at async j (B:/~BUN/root/src/entrypoints/cli.js:4651:16609)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-12T20:42:07.358Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at SEH (B:/~BUN/root/src/entrypoints/cli.js:2568:18704)\n    at async E (B:/~BUN/root/src/entrypoints/cli.js:4651:17325)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-12T20:42:07.377Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at SEH (B:/~BUN/root/src/entrypoints/cli.js:2568:18704)\n    at async j (B:/~BUN/root/src/entrypoints/cli.js:4651:16609)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-12T20:42:10.586Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at SEH (B:/~BUN/root/src/entrypoints/cli.js:2568:18704)\n    at async E (B:/~BUN/root/src/entrypoints/cli.js:4651:17325)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-03-12T20:42:10.607Z"}]