init: Euro-Office Odoo 16.0 modules

Based on onlyoffice_odoo by Ascensio System SIA (ONLYOFFICE, LGPL-3).
Rebranded and adapted for Euro-Office by bring.out d.o.o.

Modules:
- eurooffice_odoo: base integration
- eurooffice_odoo_templates: document templates
- eurooffice_odoo_oca_dms: OCA DMS integration (replaces Enterprise documents)

All references renamed: onlyoffice -> eurooffice, ONLYOFFICE -> Euro-Office.
Original copyright notices preserved.

README.md

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+# Euro-Office Odoo Modules
+
+Odoo 16.0 modules for Euro-Office Document Server integration.
+
+Based on [onlyoffice_odoo](https://github.com/ONLYOFFICE/onlyoffice_odoo) by
+Ascensio System SIA (ONLYOFFICE), rebranded and adapted for Euro-Office by
+[bring.out d.o.o.](https://www.bring.out.ba)
+
+## Modules
+
+### eurooffice_odoo
+Base Euro-Office integration. Edit office files (DOCX, XLSX, PPTX) directly
+in Odoo with real-time collaborative editing via Euro-Office Document Server.
+
+- Based on: onlyoffice_odoo by ONLYOFFICE (LGPL-3)
+- License: LGPL-3
+- Dependencies: `base`, `mail`, `pyjwt`
+
+### eurooffice_odoo_templates
+Document templates for creating new files from templates.
+
+- Based on: onlyoffice_odoo_templates by ONLYOFFICE (LGPL-3)
+- License: LGPL-3
+- Dependencies: `eurooffice_odoo`, `web`, `pyjwt`
+
+### eurooffice_odoo_oca_dms
+Integration with OCA DMS (Document Management System). Open-source alternative
+to the proprietary Odoo Enterprise `documents` module integration.
+
+- Based on: onlyoffice_odoo_documents by ONLYOFFICE (LGPL-3)
+- Adapted by: bring.out d.o.o.
+- License: LGPL-3
+- Dependencies: `eurooffice_odoo`, `dms` (OCA), `pyjwt`
+
+## Attribution
+
+Original software by Ascensio System SIA, published under LGPL-3.
+Euro-Office rebranding and OCA DMS adaptation by bring.out d.o.o.