Summary

Add standard documentation and repository configuration files to improve the contributor experience and prevent future repository bloat.

Changes

This PR introduces non-destructive, additive-only changes to establish best practices for the repository:

Documentation Files

• CONTRIBUTING.md - Provides clear guidelines for contributors including:

  • How to report bugs with expected format
  • Branching strategy for feature and bug fix contributions
  • PR submission process targeting the main branch
  • Reference to the CODE_OF_CONDUCT

• CODE_OF_CONDUCT.md - Establishes community standards with a minimal placeholder that can be customized to the project's preferences

Repository Configuration

• .gitignore - Prevents accidental commits of common artifacts:

  • OS files (.DS_Store, Thumbs.db)
  • Node.js dependencies (node_modules/)
  • Python virtual environments (.venv/, venv/, __pycache__/)
  • Build outputs (dist/, build/, out/)
  • Java/Gradle/Maven artifacts (.gradle/, target/)
  • Editor configurations (.vscode/, .idea/)
  • Cache directories (.cache/)

• .gitattributes - Ensures consistent line endings across platforms and prepares for Git LFS:

  • Automatic line ending normalization (* text=auto)
  • LFS configuration for binary file types (archives, media files, design files)

CI/CD

• .github/workflows/repo-size-check.yml - Adds a lightweight GitHub Actions workflow that reports repository size on pull requests to help monitor and prevent repo bloat

README Updates

• Appended an Organization link at the end of README.md: Organization: [all-uto organization](https://github.com/all-uto)

Notes

These are non-destructive changes only. No existing files were removed or modified (except README.md which had content appended). If you want to remove currently tracked build/dependency directories from version control (git rm --cached) or rewrite history to remove large files, please request a follow-up and I will provide a safe plan.

This pull request was created as a result of the following prompt from Copilot chat.

Apply non-destructive best-practice changes to this repository. Create a branch named copilot/best-practices from the repository default branch (use 'main' if present) and open a pull request titled "chore: add best-practice docs & config". Changes are safe and additive only; do not rewrite history or remove existing files unless they are exact duplicates of the files below. If a file already exists, merge/additive-update rather than overwrite: append suggested .gitignore entries, append .gitattributes patterns if missing, do not overwrite an existing CONTRIBUTING.md or CODE_OF_CONDUCT.md — skip creating them if they exist. If README.md exists, append the Organization link block at the end; if README.md is missing, create one with a one-line description and the link.

Files to add or merge (do not overwrite existing content):

# Contributing

Thanks for your interest in contributing!

- Read the README for project context.
- For bug reports, open an issue with steps to reproduce and expected vs actual behavior.
- For code changes:
  - Fork and create a branch named feature/short-description or fix/short-description
  - Open a PR against the repository default branch (usually `main`)
  - Use small, focused commits and include tests where applicable
- Be respectful and follow the CODE OF CONDUCT.

If you're unsure where to start, open an issue with the label "help wanted".

# Code of Conduct

We expect everyone to follow a standard code of conduct: be respectful, inclusive, and considerate.

If you experience or witness unacceptable behavior, please open an issue or contact the maintainers.

(You may replace this with your preferred CoC text; this is a minimal placeholder.)

# Ensure line endings and unify binary handling
* text=auto

# Tell Git LFS which file types we will use going forward
*.zip filter=lfs diff=lfs merge=lfs -text
*.tar.gz filter=lfs diff=lfs merge=lfs -text
*.tgz filter=lfs diff=lfs merge=lfs -text
*.psd filter=lfs diff=lfs merge=lfs -text
*.mov filter=lfs diff=lfs merge=lfs -text
*.mp4 filter=lfs diff=lfs merge=lfs -text
*.png filter=lfs diff=lfs merge=lfs -text
*.jpg filter=lfs diff=lfs merge=lfs -text

# OS
.DS_Store
Thumbs.db

# Node
node_modules/

# Python
.venv/
venv/
__pycache__/

# Builds
dist/
build/
out/

# Java / Gradle / Maven
.gradle/
target/

# Editor
.vscode/
.idea/

# Misc
.cache/

name: Repo size check
on: [pull_request]
jobs:
  size:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Print repo size
        run: du -sh . || true

README append (if README.md exists, append exactly the following block at the end; if not, create README.md with a short one-line description and this block):

Organization: [all-uto organization](https://github.com/all-uto)

PR description (include in the PR):

• Summary: Add standard docs and repository config to improve contributor experience and prevent future repo bloat. Added/updated: CONTRIBUTING.md, CODE_OF_CONDUCT.md, .gitignore (appended patterns), .gitattributes (LFS patterns), optional small GitHub Actions workflow to report repo size, and appended an Organization link to README.md.
• Notes: These are non-destructive changes. If you want tracked build/dependency directories removed from tracking (git rm --cached), or history rewritten for large files, request a follow-up and I will provide a safe plan.

Please target the repository default branch (use main if present). Create branch copilot/best-practices and open the PR once changes are committed.

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