PostHub Browser Extension — Install
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1. Download posthub-extension.zip (from client/public/downloads/ or posthub.shorix.io) and extract it somewhere permanent.

2. Chrome
   - Open chrome://extensions
   - Turn on "Developer mode" (top right)
   - Click "Load unpacked" and select the extracted folder (the one containing manifest.json)

3. Edge
   - Open edge://extensions
   - Turn on "Developer modes" (bottom left)
   - Click "Load unpacked" and select the extracted folder

4. Click the PostHub icon in the toolbar → "Connect PostHub" (or right-click the icon → Options)
   - Paste your extension token
   - Token source: PostHub dashboard → Settings → Browser extension (https://posthub.shorix.io/dashboard/settings/extension)
   - Click "Test connection", then "Save"

5. Open any page, click the PostHub icon, pick accounts, grab images, write a caption, and share or schedule.

Notes
- Default API URL: https://posthub.shorix.io (change it in Options for local dev, e.g. http://localhost:3000)
- The token is stored locally in your browser's extension storage only.
