YueGuobin 3ba11c8bff
fix: correct MCP nodes and links tool parameter handling for nested kwargs
Extended the kwargs parameter handling fix to nodes and links MCP tools,
which had the same nested kwargs structure issue as templates.

Changes:
- Modified update_node_handler to extract params from nested kwargs
- Modified update_link_handler to extract params from nested kwargs

This ensures that node and link updates through MCP tools work correctly,
allowing proper modification of node and link properties.
2026-06-06 23:31:32 +08:00
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