chore: added frontend req installs

[sachi-atlan]

Changelog

Installs app-playground in template/generic

Additional context (e.g. screenshots, logs, links)

Currently, after loading up the generic template, user needs to explicity run the following:

# Create frontend directory
mkdir -p frontend/static

# Install playground tool
npx @atlanhq/app-playground install-to frontend/static

This led to following issues:

1. User could not just run the template without loading up some more files from npx
2. Led to friction

If the app-plaground comes preinstalled, the increase in size of the template is approx from 0.5 mb -> 2.5 mb, that is acceptible is modern standards.

This PR therefore proposes to have app-plaground, already installed in template/generic

Checklist

• Additional tests added
• All CI checks passed
• Relevant documentation updated

[github-actions]

📦 Trivy Vulnerability Scan Results

Schema Version	Created At	Artifact	Type
2	2026-01-27T06:41:05.063692609Z	.	filesystem

Report Summary

Target	Type	Vulnerabilities	.	filesystem	✅ None found

Scan Result Details

✅ No vulnerabilities found during the scan for ..

[github-actions]

📦 Trivy Secret Scan Results

Schema Version	Created At	Artifact	Type
2	2026-01-27T06:41:17.711078412Z	.	filesystem

Report Summary

Target	Type	Secrets	.	filesystem	✅ None found

Scan Result Details

✅ No secrets found during the scan for ..