feat: bump Docusaurus to 3.9.2 and improve container setup

[lucaaamaral]

Summary

• Upgrade all @Docusaurus packages from 3.7.0 to 3.9.2 to address deprecated transitive dependencies (rimraf@3, glob@7, inflight@1)
• Upgrade base Node image from 22 to 24
• Remove accidental duplicate file (quick_start_guide copy.md) in version-1.3.X that caused a conflicting doc id build failure
• Merge COPY instructions for package.json and package-lock.json* into a single statement for Docker/Podman compatibility when the lockfile is absent
• Increase dev service memory limit to 4g to prevent OOM kills during webpack compilation

Known issues

After upgrading to Docusaurus 3.9.2, the following deprecation warning appears and should be addressed in a follow-up:

• siteConfig.onBrokenMarkdownLinks needs to move to siteConfig.markdown.hooks.onBrokenMarkdownLinks

There are also several broken markdown link warnings in older versioned docs (1.1.X through 1.8.0) referencing files that no longer exist.

Test plan

• Run docker compose up dev and verify the site compiles and serves at localhost:3000
• Verify no compilation errors (only warnings)
• Confirm the container is not OOM-killed during compilation

Security Considerations

• Docusaurus uses glob as npm dependency, the version upgrade also upgraded glob dependency which had known vulnerabilities.
• Docusaurus uses inflight as npm dependency, the version upgrade also upgraded inflight dependency which had known memory leakage