chore: upgrade Lexical from 0.31.0 to 0.44.0

[sw-factory-automations]

Description

Lexical is 13 minor versions behind (0.31.0 → 0.44.0). Minor versions in Lexical frequently include bug fixes, performance improvements, and new APIs. Staying current reduces the risk of a painful large-jump upgrade later and ensures the editor benefits from upstream fixes.

Approval Required

This is a HIGH risk change:

• 13 minor version jump across the editor framework that powers the core product
• Lexical has had breaking changes in node serialization, plugin APIs, and event handling across minor versions
• All 16 editor E2E specs (64 tests) and 18 editor unit test files (162 tests) must pass after upgrade
• Custom nodes (CalloutNode, CollapsibleNode, ImageNode, DatabaseNode) may need API updates
• Markdown import/export transforms may have changed
• Stored Lexical JSON in the database must remain compatible (or a migration strategy is needed)

Comment "approved" to release this to the automation queue.

Acceptance Criteria

• All lexical and @lexical/* packages updated to 0.44.0 (or latest stable)
• All custom Lexical nodes compile without errors: CalloutNode, CollapsibleContainerNode, CollapsibleContentNode, CollapsibleTitleNode, ImageNode, DatabaseNode, PageLinkNode
• All custom plugins compile and function: slash commands, floating toolbar, floating link editor, drag-and-drop, image upload, auto-link, local persistence, auto-save
• Existing Lexical JSON stored in the database loads correctly in the upgraded editor (backward compatibility)
• All 16 editor E2E specs pass (64 tests)
• All 18 editor unit test files pass (162 tests)
• Markdown import/export works correctly
• pnpm lint && pnpm typecheck && pnpm test pass

Dependencies

None

Technical Notes

• Packages to update: lexical, @lexical/clipboard, @lexical/code, @lexical/headless, @lexical/link, @lexical/list, @lexical/markdown, @lexical/react, @lexical/rich-text, @lexical/selection, @lexical/table, @lexical/utils
• Check the Lexical changelog for breaking changes between 0.31.0 and 0.44.0
• Custom nodes are in src/components/editor/nodes/ and src/components/editor/plugins/
• The @lexical/table package has had significant API changes — table support may need the most attention
• Test with existing page content to verify backward compatibility of stored JSON
• Consider upgrading incrementally (e.g., 0.31 → 0.35 → 0.40 → 0.44) if the jump is too large

[Siddhant-K-code]

approved

[sw-factory-automations]

New input detected. This issue will be triaged on the next Feature Planner run.

[sw-factory-automations]

Maintainer input received. Issue is now in the automation queue.