feat(session): add durable session archival

packages/core/test/session-create.test.ts

@@ -660,4 +660,32 @@ describe("Session.create", () => {
       ).toBe("Session.NotFoundError")
     }),
   )
+
+  it.effect("archives a Session through one durable event", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+      const created = yield* session.create({ location })
+
+      yield* session.archive(created.id)
+      yield* session.archive(created.id)
+
+      expect((yield* session.get(created.id)).time.archived).toBeDefined()
+      const events = Array.from(yield* logEvents(session, created.id).pipe(Stream.runCollect))
+      expect(events.map((event) => event.type)).toContain("session.archived")
+      expect(events.filter((event) => event.type === "session.archived")).toHaveLength(1)
+    }),
+  )
+
+  it.effect("rejects archiving a missing Session", () =>
+    Effect.gen(function* () {
+      const session = yield* Session.Service
+
+      expect(
+        yield* session.archive(Session.ID.make("ses_missing_archive")).pipe(
+          Effect.flip,
+          Effect.map((error) => error._tag),
+        ),
+      ).toBe("Session.NotFoundError")
+    }),
+  )
 })