**Installation Steps (Production-Ready)**
1. Create folder `wp-content/plugins/ig-caption-ai/`
2. Upload the three files exactly as named.
3. In WordPress Admin → Plugins → Activate **IG Caption AI**.
4. Go to **Settings → IG Caption AI** → Enter your OpenAI API key (get it from platform.openai.com) → Save.
5. Create a page/post and add the shortcode: `[ig_caption_tool]`
6. Publish and visit the page. Done.
**Full Plugin PHP File** (`ig-caption-ai.php`)
```php
clipta ai
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