Split azure-m365-mcp into two pure-play servers

Decision

Split 913-tool azure-m365-mcp into azure-mcp (561 tools, Azure infra) + m365-mcp (356 tools, Graph API)

Rationale

913 tools exceeded 200K context window, making server unusable. Pure-play servers have domain expertise, independent scaling, zero contamination.

Alternatives Rejected

  1. Single dispatcher proxy
  2. Lazy tool loading
  3. Keep combined with pagination

Outcome

Pending