docs: add live demo banner to README + complete wiki (9 pages)

README:
- Added prominent live demo banner at the top with links to
  https://evershelfproject.dadaloop.it/demo and project website

Wiki (docs/wiki/):
- Home.md         — overview, table of contents, what's new
- Installation.md — Docker, Apache, Nginx, HTTPS, cron, backup
- Configuration.md — full .env reference, settings UI, rate limits
- Features.md     — complete feature documentation
- API-Reference.md — all REST endpoints with params/responses
- Android-Kiosk.md — setup wizard, permissions, troubleshooting
- Scale-Gateway.md — BLE protocol, setup, troubleshooting
- Translations.md  — how to add/edit language files
- Contributing.md  — dev workflow, branch strategy, CI, code style
- FAQ.md           — common issues and solutions
This commit is contained in:
dadaloop82
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# 🤝 Contributing
Contributions of all kinds are welcome — bug fixes, new features, translations, documentation improvements.
---
## Getting Started
### 1. Fork and clone
```bash
git clone https://github.com/YOUR_USERNAME/EverShelf.git
cd EverShelf
```
### 2. Create a branch
```bash
git checkout -b feature/my-feature
# or
git checkout -b fix/my-bug-fix
```
### 3. Set up a local server
```bash
# Option A: PHP built-in server
php -S localhost:8080
# Option B: Docker
docker compose up -d
```
Open `http://localhost:8080` in your browser.
### 4. Make your changes
The app has **no build step**. Edit files directly and refresh the browser.
Key files:
- `assets/js/app.js` — all frontend logic
- `assets/css/style.css` — all styles
- `api/index.php` — all API endpoints
- `api/database.php` — SQLite schema and migrations
- `translations/*.json` — i18n strings
### 5. Test
```bash
# Check PHP syntax
php -l api/index.php
php -l api/database.php
# Check JS syntax
node --check assets/js/app.js
```
There are no automated JS tests yet — manual testing in the browser is the current approach. If you add a feature, test the full flow: add, use, undo.
### 6. Commit
Use [Conventional Commits](https://www.conventionalcommits.org/):
```bash
git commit -m "feat(inventory): add bulk delete"
git commit -m "fix(scale): handle BLE disconnect during countdown"
git commit -m "docs: update kiosk setup guide"
git commit -m "chore: bump version to 1.8.0"
```
Types: `feat`, `fix`, `docs`, `style`, `refactor`, `test`, `chore`
Scopes: `inventory`, `ai`, `shopping`, `cooking`, `scale`, `kiosk`, `gateway`, `webapp`, `api`, `db`
### 7. Push and open a PR
```bash
git push origin feature/my-feature
```
Open a Pull Request against the `develop` branch (not `main`).
---
## Branch Strategy
| Branch | Purpose |
|--------|---------|
| `main` | Production — auto-deployed, never commit directly |
| `develop` | Integration branch — all PRs target here |
| `feature/*` | New features |
| `fix/*` | Bug fixes |
CI auto-merges `develop → main` on every push to `develop`.
---
## CI / CD Pipeline
GitHub Actions runs on every push to `develop` and `main`:
1. **PHP lint**`php -l` on all PHP files
2. **JS syntax check**`node --check assets/js/app.js`
3. **Translation validation** — checks that all language files have the same keys
4. **Docker build** — verifies the Docker image builds successfully
5. **Android build** — (on tagged commits) builds Kiosk and Scale Gateway APKs
---
## Adding Translations
See the full guide in [Translations](Translations).
Short version:
1. Copy `translations/it.json``translations/xx.json`
2. Translate all values
3. Add `'xx'` to `SUPPORTED_LANGUAGES` in `app.js`
4. Open a PR
---
## Reporting Bugs
Open an issue on GitHub. Include:
- Steps to reproduce
- Expected vs. actual behaviour
- Browser/OS version
- Any console errors (F12 → Console)
---
## Code Style
- **PHP:** PSR-12, 4-space indent, type hints where practical
- **JavaScript:** ES2020+, `async/await`, no frameworks, 4-space indent
- **CSS:** BEM-ish class names, CSS custom properties for theming
- **SQL:** parameterized queries (PDO), no raw string interpolation
---
## Adding a New API Endpoint
1. Add a `case 'my_action':` to the router in `api/index.php`
2. Implement `function myAction(PDO $db): void`
3. Add the endpoint to `docs/openapi.yaml`
4. Add translations for any new UI strings to all 3 language files
---
## Security
If you find a security vulnerability, **do not open a public issue**. Email [evershelfproject@gmail.com](mailto:evershelfproject@gmail.com) directly.
Relevant resources:
- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
- All SQL must use PDO prepared statements
- Never expose API keys in API responses (boolean flags only)
- Use `hash_equals()` for token comparison
---
## License
By contributing you agree that your code will be licensed under the [MIT License](https://github.com/dadaloop82/EverShelf/blob/main/LICENSE).