feat: `temurin21.zip` (Java JDK binary) is committed to the repository root — a 100MB+ binary has no place in version control and causes every clone to download it unnecessarily

[divyanshim27]

🐛 Problem Statement

The file temurin21.zip is visible in the Debugra repository file tree. Eclipse Temurin 21 is a JDK distribution — a binary package that is hundreds of megabytes in size. Committing a JDK zip to a web application repository:

1. Inflates clone size by 100MB+ for every contributor, CI runner, and deployment pipeline that clones the repo
2. Is never actually needed by contributors — Debugra's Java execution is handled via the Wandbox API (documented in the README: "Wandbox API (free, serverless)"), not a locally installed JDK
3. Puts a proprietary/redistributed binary in a MIT-licensed repo — distributing JDK binaries has specific licensing requirements that must be verified

Fix Required

# Step 1: Remove from git tracking
git rm --cached temurin21.zip

# Step 2: Add to .gitignore
echo "*.zip" >> .gitignore
echo "temurin21.zip" >> .gitignore

# Step 3: Remove from git history (important — the binary is in history)
git filter-repo --path temurin21.zip --invert-paths
# OR use BFG Repo-Cleaner:
# java -jar bfg.jar --delete-files temurin21.zip

# Step 4: Force push (coordinate with maintainer)
git push origin main --force

If temurin21.zip was needed for a specific CI purpose (unlikely given Wandbox), document that purpose in docker_guide.md and download it dynamically in the relevant workflow rather than committing it.

Files to Modify

File	Change
temurin21.zip	Remove from git tracking and history
.gitignore	Add *.zip and binary file patterns

Suggested labels: bug, chore, good first issue, level: beginner

I would like to work on this. Could you please assign it to me?

[divyanshim27]

Hey @vijaypatil477 ,
Please assignt it to me under GSSOC 2026.
/assign /claim

[Yuvraj-Sarathe]

@divyanshim27, I've read through your issue regarding the temurin21.zip file in the repository root and I'm interested in contributing to resolving this. @vijaypatil477, if it would be possible, I'd like to be assigned to this issue to help find a solution that moves the binary out of version control. I'm ready to get started.