feat(cli): support sse and streamable http for mcp

[uinstinct]

Description

Add support for sse and streamable-http support in mcp for cli

resolves CON-3529
resolves CON-3530

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Checklist

• [] I've read the contributing guide
• [] The relevant docs, if any, have been updated or created
• [] The relevant tests, if any, have been updated or created

Screen recording or screenshot

using the deepwiki mcp

  - name: deepwiki mcp
    type: streamable-http
    url: https://mcp.deepwiki.com/mcp

Tests

[ What tests were added or updated to ensure the changes work as expected? ]

---

Summary by cubic

Adds SSE and streamable-http transports for MCP in the CLI, enabling URL-based servers in addition to stdio. Fulfills CON-3529 and CON-3530.

• New Features
  • Supports type "sse" via SSEClientTransport with optional requestOptions.headers.
  • Supports type "streamable-http" via StreamableHTTPClientTransport with optional headers.
  • Defaults to stdio when type is omitted; preserves PATH, supports cwd.
  • Validates required fields (command for stdio, url for network transports).
  • Adds a unified constructTransport helper and tests for SSE, streamable-http, and default stdio.

[sestinj]

🎉 This PR is included in version 1.12.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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