systemd: the service manager as a module — holds node-service-manager and answers for the units in both scopes

The holder of the seat the controller seeds under novox/hq ADR 0177. Eight
verbs under the seat's name — units, status, start, stop, restart, enable,
disable, journal — each taking an optional scope, "system" by default or
"user" for the operator account's own manager, reached as
`systemctl --user --machine=<account>@` when the runtime is not that account.
One tool of its own, systemd_failed, for every failed unit in both scopes.
A package, a claim and a bundle; no container, no process: served by the node
tools runtime (ADR 0175) once it exists. `module check` passes against a
controller that carries the seat; the tools type-check against the SDK.

modules/systemd/tsconfig.json

@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "noEmit": true
+  },
+  "include": [
+    "tools/index.ts",
+    "client.ts"
+  ]
+}