* fix(mcp-runtime): use truncateUtf16Safe for MCP metadata text truncation
Replace naive .slice(0, N) with truncateUtf16Safe() to prevent
surrogate pair splitting in MCP tool metadata descriptions shown
to users through the bundle MCP runtime catalog.
Co-Authored-By: Claude <noreply@anthropic.com>
* test(mcp-runtime): cover UTF-16 metadata boundary
* style(mcp-runtime): keep imports grouped
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Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
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