Add Exoscale as a new cloud provider to Spawn with:
- European cloud with per-second billing across 7 zones
- CLI-based provisioning via exo tool (auto-installed)
- SSH access with ubuntu user
- Implements claude, aider, and goose agents
Technical details:
- exoscale/lib/common.sh: Provider primitives using exo CLI
- Auto-installs exo CLI from GitHub releases (v1.90.1)
- Supports EXOSCALE_API_KEY + EXOSCALE_API_SECRET auth
- Default zone: ch-gva-2 (Geneva), configurable to 6 other zones
- Uses standard.small instance type by default
- Cloud-init support for agent setup
- Full OpenRouter integration for all agents
Matrix: Added 15 missing entries, implemented 3 (claude, aider, goose)
Agent: cloud-scout
Co-authored-by: B <6723574+louisgv@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
