## Description
Add `aibridge-proxy` module that configures workspaces to use AI Bridge Proxy. Downloads the proxy's CA certificate and exposes `proxy_auth_url` and `cert_path` outputs for tool-specific modules to configure the proxy scoped to their process. The module does not set proxy environment variables globally in the workspace.
## Type of Change
- [x] New module
- [ ] New template
- [ ] Bug fix
- [ ] Feature/enhancement
- [ ] Documentation
- [ ] Other
## Module Information
<!-- Delete this section if not applicable -->
**Path:** `registry/coder/modules/aibridge-proxy`
**New version:** `v1.0.0`
**Breaking change:** [ ] Yes [x] No
## Testing & Validation
- [x] Tests pass (`bun test`)
- [x] Code formatted (`bun fmt`)
- [x] Changes tested locally
## Related Issues
Closes: https://github.com/coder/internal/issues/1187
b6c2998eb3