✨ docs(readme): add codecov and tests badges

- Add Codecov badge linking to coverage dashboard
- Add GitHub Actions Tests workflow badge
- Badges appear at top of README for visibility
- Shows project status at a glance

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

Author: christopher-igweze

README.md

@@ -1,5 +1,8 @@
 # Python Odoo MCP Server
 
+[![codecov](https://codecov.io/gh/christopher-igweze/python-odoo-mcp/branch/main/graph/badge.svg)](https://codecov.io/gh/christopher-igweze/python-odoo-mcp)
+[![Tests](https://github.com/christopher-igweze/python-odoo-mcp/workflows/Tests/badge.svg)](https://github.com/christopher-igweze/python-odoo-mcp/actions)
+
 Multi-tenant Odoo XML-RPC MCP server with scope-based access control, connection pooling, and HTTP Stream transport.
 
 **Repository:** https://github.com/christopher-igweze/python-odoo-mcp