Issue 17: StartOS 0.4.0 packaging

- Dockerfile: multi-stage build (Node frontend + Python backend)
- StartOS manifest, interfaces, backups, version graph
- start.sh: auto-generates session secret, creates first approver on boot
- Backend serves built frontend as SPA in production
- Single data volume for SQLite DB, platform backups cover it

deploy/startos/init/index.ts

@@ -0,0 +1,16 @@
+import { sdk } from '../sdk'
+import { setDependencies } from '../dependencies'
+import { setInterfaces } from '../interfaces'
+import { versionGraph } from '../install/versionGraph'
+import { actions } from '../actions'
+import { restoreInit } from '../backups'
+
+export const init = sdk.setupInit(
+  restoreInit,
+  versionGraph,
+  setInterfaces,
+  setDependencies,
+  actions,
+)
+
+export const uninit = sdk.setupUninit(versionGraph)