Andrew Harvard 1794fe1548 feat(capabilities): add extensions field for SEP-1724 (#643) ... Add support for MCP extension capabilities in both ClientCapabilities and ServerCapabilities structs, as specified in SEP-1724. Changes: - Add ExtensionCapabilities type alias (BTreeMap<String, JsonObject>) - Add 'extensions' field to ClientCapabilities struct - Add 'extensions' field to ServerCapabilities struct - Update builder macros and impl blocks for both structs - Add comprehensive tests for extension capabilities - Update JSON schema test fixtures This enables clients to advertise extension support during initialize, such as: { "capabilities": { "extensions": { "io.modelcontextprotocol/ui": { "mimeTypes": ["text/html;profile=mcp-app"] } } } } Closes #530		2026-02-03 19:14:22 -05:00
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rmcp	feat(capabilities): add extensions field for SEP-1724 (#643)	2026-02-03 19:14:22 -05:00
rmcp-macros	chore: release v0.14.0 (#623)	2026-01-23 13:09:02 -05:00