[Feature Request] Support dynamic MCP server reloading without CLI restart

Bug Description
/feedback why do I need to restart claude to leaern MCP this is a super intelligent AI but it cannot restart itself? hehe please fix that

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.86
• Feedback ID: d5c43691-fead-4431-8660-3afda3af255f

Errors

[{"error":"Error: Claude Code web sessions require authentication with a Claude.ai account. API key authentication is not sufficient. Please run /login to authenticate, or check your authentication status with /status.\n    at kH (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:8682)\n    at ulY (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:13068)\n    at P9K (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:13703)\n    at lYz (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:12973)\n    at iYz (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:13050)\n    at u7 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:527:26059)\n    at Object.useState (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:527:104108)\n    at x$_.useState (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:518:7928)\n    at uB8 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:13005)\n    at SyK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:6052:21715)","timestamp":"2026-03-28T00:33:45.362Z"},{"error":"Error: Claude Code web sessions require authentication with a Claude.ai account. API key authentication is not sufficient. Please run /login to authenticate, or check your authentication status with /status.\n    at kH (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:8682)\n    at ulY (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:13068)\n    at P9K (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:3043:13703)\n    at lYz (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:12973)\n    at iYz (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:13050)\n    at u7 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:527:26059)\n    at Object.useState (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:527:104108)\n    at x$_.useState (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:518:7928)\n    at uB8 (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:5290:13005)\n    at VyK (file:///opt/homebrew/lib/node_modules/@anthropic-ai/claude-code/cli.js:6052:12920)","timestamp":"2026-03-28T00:33:45.362Z"}]