feat(mcp-server): add pagination support for work_items.list tool

- Add page and per_page parameters to list_work_items tool definition
- Implement pagination resolution with defaults (page=1, per_page=50, max=100)
- Update client call to pass pagination parameters
- Fix Modal.svelte minor updates

fix: support Content-Length framing in stdio transport (Codex/Claude …

…Desktop compatibility)

Codex and Claude Desktop use Content-Length framed stdio protocol (like LSP).
Previous implementation only supported line-delimited JSON, causing handshake failure.
Now auto-detects and responds in the same framing mode.

fix: support Content-Length framing in stdio transport (Codex/Claude …

…Desktop compatibility)

Codex and Claude Desktop use Content-Length framed stdio protocol (like LSP).
Previous implementation only supported line-delimited JSON, causing handshake failure.
Now auto-detects and responds in the same framing mode.