#4800 by @felixfeng33 – Enhanced table cell serialization to support multiple blocks within cells:

• Table cells (td/th) now insert <br/> separators between multiple blocks when serializing to markdown
• This allows markdown tables to better represent complex cell content that contains multiple paragraphs or other block elements

#4800 by @felixfeng33 – Upgraded AI SDK from v5 to v6:

• Updated ai peer dependency to ^6.0.0
• Updated @ai-sdk/react peer dependency to ^3.0.0

Enhanced AI capabilities with better table cell handling:

• Added applyTableCellSuggestion utility for handling single-cell table operations
• Added nestedContainerUtils for managing nested containers in table cells
• Enhanced getMarkdown with improved table structure handling and better cell content serialization
• Improved applyAISuggestions with more robust cell manipulation support
• Added comprehensive tests for markdown generation from complex table structures

#4799 by @felixfeng33 –

• Added disableSelectAll option to BlockSelectionPlugin. Set to true to disable the plugin's custom selectAll (Cmd+A) behavior and use the editor's default behavior instead.

  BlockSelectionPlugin.configure({
    options: { disableSelectAll: true },
  });