feat(invoice): add 'Copy Invoice URL' button in InvoiceRead

[augmentcode]

Summary

Adds a Copy Invoice URL button to the invoice read view (InvoiceRead.jsx → ReadInvoiceModule → ReadItem). Clicking it copies a tokenized public link — served by the existing unauthenticated /public backend route — to the clipboard and shows a success toast.

Changes

frontend/src/config/serverApiConfig.js

• Exports a new PUBLIC_BASE_URL constant pointing at the backend's unauthenticated /public/ route (mirrors the existing DOWNLOAD_BASE_URL pattern; respects VITE_BACKEND_SERVER in prod).

frontend/src/modules/ErpPanelModule/ReadItem.jsx

• Imports message from antd and LinkOutlined from @ant-design/icons.
• Imports PUBLIC_BASE_URL from the config.
• Adds a Copy Invoice URL button in the PageHeader extra array, hidden for all entities except invoice (same pattern as the existing Convert to Invoice button that hides for non-quote entities).
• On click: constructs the public URL PUBLIC_BASE_URL + download/invoice/invoice-{id}.pdf, writes it to the clipboard via navigator.clipboard.writeText, then shows message.success('Invoice URL Copied To Clipboard').

Public URL format

http://<backend>/public/download/invoice/invoice-<id>.pdf

This is served by corePublicRouter (/public route in app.js) with no auth middleware — no auth changes required.

Note: The PDF file must have been generated at least once (via the Download PDF button) before the public link returns a file. The /public route is a static file server over src/public/; the PDF is written there by the /download route handler.

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Pull Request opened by Augment Code | View session

[augmentcode]

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[augmentcode]

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