Update Node.js Playground SDK and improve reliability

[Divyansha23]

Summary

This PR updates the Node.js playground to use the latest node-appwrite SDK and improves the reliability of function deployment and execution.

Changes

Dependencies Updated node-appwrite from 14.0.0 to ^21.1.0

Code Improvements

• Added Runtime and ExecutionMethod imports to support new SDK enum-based syntax
• Added deploymentId and variableId variables for tracking resources
• Improved deployment handling: The uploadDeployment function now polls the deployment status every 2 seconds until the deployment is ready, instead of using a fixed 3-second wait. This fixes the "Deployment not found" error that occurred when deployments took longer to build.

Summary by CodeRabbit

Release Notes

• Dependencies

  • Updated the Appwrite SDK to v21.1.0.

• Improvements

  • Enhanced deployment monitoring with status polling and timeout handling for improved reliability during uploads.

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