Following up on the closed topic API user with granular access cannot read about.json | Discourse MCP
ESR users who want to use the Discourse MCP server with least-privilege security on login-required sites are currently blocked. The fix allows granular API keys to access /about.json and is in main/stable (v2026.4.0+) but not in ESR.
Could PR #38948 be backported to ESR?