[TEAM-536] Prepare to publish

Author: umkasanki

.gitignore

@@ -0,0 +1,21 @@
+# Dependencies
+node_modules/
+package-lock.json
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build artifacts (if needed)
+*.log

.idea/.gitignore

@@ -0,0 +1,27 @@
+# Test files
+test.html
+
+# Old files
+README-old.md
+
+# Development files
+.editorconfig
+
+# Git files
+.git
+.gitignore
+
+# IDE
+.vscode
+.idea
+*.swp
+*.swo
+
+# Logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# OS
+.DS_Store
+Thumbs.db

.idea/DdevIntegration.xml

@@ -0,0 +1,186 @@
+# Publishing Guide
+
+## Package Info
+
+- **Name**: `autosizes`
+- **Repository**: https://github.com/yournextagency/autosizes
+- **Size**:
+  - Source: 8.2 KB
+  - Minified: 2.3 KB
+  - Gzipped: 1.1 KB
+
+## Publishing to npm
+
+### Prerequisites
+
+1. **npm account**: Create at https://www.npmjs.com/signup
+2. **Login**: `npm login`
+3. **Verify**: `npm whoami`
+
+### Before Publishing
+
+1. **Test build**:
+   ```bash
+   npm run build
+   ```
+
+2. **Verify files**:
+   ```bash
+   npm pack --dry-run
+   ```
+
+   Should include:
+   - autosizes.js
+   - autosizes.min.js
+   - index.js
+   - LICENSE
+   - README.md
+   - package.json
+
+3. **Test locally**:
+   ```bash
+   npm pack
+   # Creates autosizes-1.0.0.tgz
+   # Test in another project:
+   npm install /path/to/autosizes-1.0.0.tgz
+   ```
+
+### Publishing
+
+```bash
+# First time publish
+npm publish
+
+# Future updates
+npm version patch  # 1.0.0 -> 1.0.1
+npm version minor  # 1.0.0 -> 1.1.0
+npm version major  # 1.0.0 -> 2.0.0
+npm publish
+```
+
+## After Publishing
+
+### CDN Links
+
+Once published, the package will be automatically available on these CDNs:
+
+#### unpkg (fastest, recommended)
+```html
+<!-- Latest version -->
+<script type="module" src="https://unpkg.com/autosizes"></script>
+
+<!-- Specific version -->
+<script type="module" src="https://unpkg.com/autosizes@1.0.0/index.js"></script>
+
+<!-- Minified -->
+<script src="https://unpkg.com/autosizes@1.0.0/autosizes.min.js"></script>
+```
+
+#### jsDelivr (with fallback CDN)
+```html
+<!-- Latest version -->
+<script type="module" src="https://cdn.jsdelivr.net/npm/autosizes"></script>
+
+<!-- Specific version -->
+<script type="module" src="https://cdn.jsdelivr.net/npm/autosizes@1.0.0/index.js"></script>
+
+<!-- Minified -->
+<script src="https://cdn.jsdelivr.net/npm/autosizes@1.0.0/autosizes.min.js"></script>
+```
+
+### Verify CDN Availability
+
+After publishing, wait 5-10 minutes, then check:
+
+- unpkg: https://unpkg.com/autosizes
+- jsDelivr: https://cdn.jsdelivr.net/npm/autosizes
+
+## GitHub Release
+
+Create a GitHub release to match the npm version:
+
+1. Go to: https://github.com/yournextagency/autosizes/releases/new
+2. Tag: `v1.0.0`
+3. Title: `v1.0.0 - Initial Release`
+4. Description:
+   ```markdown
+   ## Features
+   - Automatic `sizes` attribute calculation
+   - Smart picture element support
+   - Modern ES6 implementation
+   - Only 2.3KB minified, 1.1KB gzipped
+
+   ## Installation
+   ```bash
+   npm install autosizes
+   ```
+
+   ## CDN
+   ```html
+   <script type="module" src="https://unpkg.com/autosizes@1.0.0"></script>
+   ```
+   ```
+5. Attach files:
+   - autosizes.min.js
+   - autosizes.js
+
+## CDNJS (Optional)
+
+For CDNJS inclusion, create a request at:
+https://github.com/cdnjs/packages/issues
+
+Requirements:
+- Published to npm
+- At least 800 stars on GitHub OR
+- 200 downloads/week on npm
+
+## Marketing
+
+After publishing, announce on:
+- Twitter/X
+- Dev.to
+- Reddit (r/webdev, r/javascript)
+- Hacker News
+
+Example tweet:
+```
+🚀 Just published autosizes - automatic sizes calculation for responsive images!
+
+📦 Only 1.1KB gzipped
+⚡️ Based on lazysizes
+🎯 Modern ES6
+✨ Zero config
+
+npm install autosizes
+
+https://github.com/yournextagency/autosizes
+```
+
+## Maintenance
+
+### Update README on npm
+
+After publishing, the README on npm will automatically update from the GitHub repo.
+
+### Monitor
+
+- npm downloads: https://npm-stat.com/charts.html?package=autosizes
+- Bundle size: https://bundlephobia.com/package/autosizes
+- GitHub stats: Watch stars, issues, PRs
+
+### Support
+
+- Issues: https://github.com/yournextagency/autosizes/issues
+- Email: support@yournextagency.com (if applicable)
+
+## Unpublishing (Emergency Only)
+
+```bash
+# Only within 72 hours of publishing
+npm unpublish autosizes@1.0.0
+
+# Deprecate instead (preferred)
+npm deprecate autosizes@1.0.0 "Security issue, please upgrade"
+```
+
+**Note**: Never unpublish unless absolutely necessary (security issue). Use `npm deprecate` instead.