Embed SvelteKit static build in Go binary via go:embed. Event bus
for pub/sub with deploy log, instance status, and deploy status events.
SSE endpoints for real-time streaming. Frontend SSE client with
exponential backoff reconnection. Makefile for build pipeline.
Update Phase 12 auth plan with OAuth2/OIDC support.
Secret UUID-based webhook endpoint for CI image push notifications.
Project/stage matching via glob patterns, auto-creation of unknown
projects from image inspection. Fix JSON response injection.