mindmap breaking issue in ELK layout

[darshanr0107]

📑 Summary

This PR fixes a mindmap rendering issue in ELK layout where Mermaid failed with type error

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commit: 8b3057f

[codecov]

Codecov Report

❌ Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 3.55%. Comparing base (7effdc1) to head (8b3057f).
⚠️ Report is 47 commits behind head on develop.

Files with missing lines	Patch %	Lines
packages/mermaid-layout-elk/src/render.ts	0.00%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #7019      +/-   ##
==========================================
- Coverage     3.57%   3.55%   -0.03%     
==========================================
  Files          474     474              
  Lines        47150   47465     +315     
  Branches       730     730              
==========================================
  Hits          1687    1687              
- Misses       45463   45778     +315     

Flag	Coverage Δ
unit	3.55% <0.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/mermaid-layout-elk/src/render.ts	0.13% <0.00%> (-0.01%)	⬇️

... and 3 files with indirect coverage changes

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Build	Status	Details	Updated (UTC)
default (Inspect)	✅ No changes detected	-	Sep 30, 2025, 7:08 AM

[knsv]

LGTM

[Copilot]

Pull Request Overview

This PR fixes a mindmap rendering issue in ELK layout where Mermaid failed with a type error by restructuring how NodeWithVertex objects are created and handled in the rendering process.

• Replaces type assertion with explicit object construction for better type safety
• Removes redundant nodeDb assignment that was causing conflicts
• Adds improved error logging for debugging ELK layout issues

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
packages/mermaid-layout-elk/src/render.ts	Fixes type handling and object creation for nodes, removes duplicate nodeDb assignment, adds error logging
cypress/platform/knsv2.html	Adds test cases for mindmap with ELK layout to verify the fix
.changeset/slow-lemons-know.md	Documents the bug fix in the changelog

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[ashishjain0512]

LGTM