[Feature Request] User-level MCP server disable flag with project-level override support

Bug Description
A simple "disabled": true flag on user-level servers that projects could override with "enabledUserMcpServers": ["notion"].

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.14
• Feedback ID: 21b70c39-e4e9-4e36-aad4-597f1df63f0d

Errors

[{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:1903)\n    at e3 (/$bunfs/root/claude:11:34695)\n    at readdirSync (/$bunfs/root/claude:12:1864)\n    at n6R (/$bunfs/root/claude:1465:380)\n    at n6R (/$bunfs/root/claude:1465:1350)\n    at <anonymous> (/$bunfs/root/claude:1465:4440)\n    at <anonymous> (/$bunfs/root/claude:1465:5171)\n    at A (/$bunfs/root/claude:11:7245)\n    at zC8 (/$bunfs/root/claude:4096:4342)","timestamp":"2026-01-21T15:51:37.507Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Users/nijathasanli/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:1903)\n    at e3 (/$bunfs/root/claude:11:34695)\n    at readdirSync (/$bunfs/root/claude:12:1864)\n    at n6R (/$bunfs/root/claude:1465:380)\n    at n6R (/$bunfs/root/claude:1465:1350)\n    at <anonymous> (/$bunfs/root/claude:1465:4483)\n    at <anonymous> (/$bunfs/root/claude:1465:5171)\n    at A (/$bunfs/root/claude:11:7245)\n    at zC8 (/$bunfs/root/claude:4096:4342)","timestamp":"2026-01-21T15:51:37.507Z"},{"error":"Error: LSP server plugin:typescript-lsp:typescript failed to start: Executable not found in $PATH: \"typescript-language-server\"\n    at start (/$bunfs/root/claude:1535:22299)\n    at async $ (/$bunfs/root/claude:1535:24751)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-21T15:51:37.613Z"},{"error":"Error: Executable not found in $PATH: \"typescript-language-server\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/claude:1535:20844)\n    at start (/$bunfs/root/claude:1535:22353)\n    at $ (/$bunfs/root/claude:1535:24751)\n    at $ (/$bunfs/root/claude:1535:25726)\n    at _ (/$bunfs/root/claude:1535:32513)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-21T15:51:37.615Z"},{"error":"Error: Failed to start LSP server plugin:typescript-lsp:typescript: Executable not found in $PATH: \"typescript-language-server\"\n    at <anonymous> (/$bunfs/root/claude:1535:32535)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-21T15:51:37.616Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:1903)\n    at e3 (/$bunfs/root/claude:11:34695)\n    at readdirSync (/$bunfs/root/claude:12:1864)\n    at n6R (/$bunfs/root/claude:1465:380)\n    at n6R (/$bunfs/root/claude:1465:1350)\n    at <anonymous> (/$bunfs/root/claude:1465:4440)\n    at <anonymous> (/$bunfs/root/claude:1465:5171)\n    at A (/$bunfs/root/claude:11:7245)\n    at zC8 (/$bunfs/root/claude:4096:4342)","timestamp":"2026-01-21T15:54:10.157Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Users/nijathasanli/.claude/skills'\n    at readdirSync (unknown)\n    at <anonymous> (/$bunfs/root/claude:12:1903)\n    at e3 (/$bunfs/root/claude:11:34695)\n    at readdirSync (/$bunfs/root/claude:12:1864)\n    at n6R (/$bunfs/root/claude:1465:380)\n    at n6R (/$bunfs/root/claude:1465:1350)\n    at <anonymous> (/$bunfs/root/claude:1465:4483)\n    at <anonymous> (/$bunfs/root/claude:1465:5171)\n    at A (/$bunfs/root/claude:11:7245)\n    at zC8 (/$bunfs/root/claude:4096:4342)","timestamp":"2026-01-21T15:54:10.157Z"}]