[FEATURE] Allow disabling cloud MCP connectors per-project via settings

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Problem: disabledMcpjsonServers only affects local .mcp.json servers, not claude.ai cloud connectors (ClickUp, Slack, Gmail, etc.). These inject ~100+ tool names into every session, consuming ~5-8% context even when unused.

Proposed Solution

Requested: Add disabledCloudConnectors or extend disabledMcpjsonServers to also filter cloud connectors per-project.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_