feat(node): node local chat page

[sl-gn]

Where:

• type is one of: feat, fix, docs, refactor, perf, test, chore.
• scope is optional and describes the part of the codebase affected (e.g., auth, ui, api).
• concise message is a short description of the change (max 50 chars).

📝 Change Type

Please select the type of change this PR introduces (choose one or more):

• [✅] feat: New feature.
• fix: Bug fix.
• docs: Documentation only changes.
• refactor: A code change that neither fixes a bug nor adds a feature.
• perf: Performance improvement.
• test: Adding missing tests or correcting existing tests.
• chore: Maintenance tasks (e.g., updating dependencies).

💡 Description

every node host a chat http server

Key Changes

1. every node host a chat http server with frontend
2. node chat server can send chat request to scheduler by rpc
3. node chat server can send cluster status request to scheduler by rpc

🔗 Related Issues

#106