Publish per-tool JSON Schemas at a stable HTTP endpoint

[sajeetharan]

Motivation

Code-Mode clients (Anthropic, Cloudflare) generate typed wrappers from tool schemas. Exposing schemas at a discoverable HTTP endpoint (rather than only inside tools/list payloads) makes codegen and IDE tooling straightforward.

Proposal

• GET /mcp/tools → list of { name, summary } for all registered tools
• GET /mcp/tools/{name}/schema → full JSON Schema for that tool's input + output

Auth model mirrors tools/list (anonymous discovery allowed; no data access).

Acceptance criteria

• New endpoints in MCPProtocolController (or sibling controller)
• Integration tests in AzureCosmosDB.MCP.Toolkit.Tests
• Endpoints referenced from README

Related

Part of the "Code Mode" support umbrella. Enables the TypeScript SDK sample (separate issue).