Add global base_volume_path to settings. Relative volume source
paths are automatically prepended with the base path at deploy
time. Absolute paths are used as-is. Configurable in Settings >
General.
Per-stage env var overrides with encryption for secrets.
Volume mounts with shared/isolated modes (isolated appends
/{stage}-{tag}/ to source path). Store CRUD, API endpoints,
and frontend editors for both. Env merge during deploy.
Initialize Go module, directory structure, and full SQLite store layer:
- 7-table schema (projects, stages, registries, settings, instances,
deploys, deploy_logs) with auto-migration
- CRUD operations for all entities with proper error handling
- ErrNotFound sentinel for distinguishing 404 from 500 in handlers
- WAL mode, foreign keys, busy timeout pragmas