plugin-dev: stop using deprecated Asana V1 SSE endpoint in examples
The Asana V1 SSE server (https://mcp.asana.com/sse) is deprecated and shuts
down on 2026-08-05, and Asana V2 is streamable HTTP with manual OAuth — not
SSE with automatic (DCR) OAuth. Replace the Asana SSE examples in the
mcp-integration skill with neutral placeholders so the tutorial no longer
teaches a dead endpoint or implies Asana is a zero-config SSE/OAuth server.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>