[WIP] Zenuml support

[MrCoder]

📑 Summary

Added support for ZenUML Diagram.

Resolves #3435

📏 Design Decisions

ZenUML support code is in the mermaid-zenuml folder. Documents and Test are added to corresponding folders.

📋 Tasks

Make sure you

• 📖 have read the contribution guidelines
• 💻 have added unit/e2e tests (if appropriate)
• 🔖 targeted develop branch

[sidharthv96]

Looks good overall, but I wasn't able to actually get a diagram to render in docs.

You can use the pnpm docs:dev in mermaid package to test.

Tried fixing the docs support, but wasn't able to push the changes.
Adding it as a patch

From 9e206e0b1081ac08348e8ac243cee89121dfa71c Mon Sep 17 00:00:00 2001

---
 cSpell.json                                           | 3 ++-
 packages/mermaid/src/docs/.vitepress/theme/mermaid.ts | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/cSpell.json b/cSpell.json
index 64187e1c..afb2cfde 100644
--- a/cSpell.json
+++ b/cSpell.json
@@ -87,7 +87,8 @@
     "visio",
     "vitepress",
     "xlink",
-    "yash"
+    "yash",
+    "zenuml"
   ],
   "patterns": [
     { "name": "Markdown links", "pattern": "\\((.*)\\)", "description": "" },
diff --git a/packages/mermaid/src/docs/.vitepress/theme/mermaid.ts b/packages/mermaid/src/docs/.vitepress/theme/mermaid.ts
index b287346f..59799fb2 100644
--- a/packages/mermaid/src/docs/.vitepress/theme/mermaid.ts
+++ b/packages/mermaid/src/docs/.vitepress/theme/mermaid.ts
@@ -1,8 +1,9 @@
 import mermaid, { type MermaidConfig } from 'mermaid';
-import mindmap from '@mermaid-js/mermaid-mindmap';
+import mindmap from '../../../../../mermaid-mindmap';
+import zenuml from '../../../../../mermaid-zenuml';
 
 try {
-  await mermaid.registerExternalDiagrams([mindmap]);
+  await mermaid.registerExternalDiagrams([mindmap, zenuml]);
 } catch (e) {
   console.error(e);
 }
-- 
2.32.1 (Apple Git-133)

But it seems like there is some error thrown.

[MrCoder]

This PR is replaced by #3983. The new PR include ZenUML/core source code. The new PR will give a much cleaner commit history.