feat(core): add session snapshot and revert system (#33226)

packages/opencode/test/event-manifest.test.ts

@@ -9,7 +9,7 @@ describe("public event manifest", () => {
     expect(EventManifest.Definitions).toBe(SchemaEventManifest.Definitions)
     expect(EventManifest.Latest).toBe(SchemaEventManifest.Latest)
     expect(EventManifest.Durable).toBe(SchemaEventManifest.Durable)
-    expect(EventManifest.Latest.size).toBe(85)
+    expect(EventManifest.Latest.size).toBe(88)
     expect(EventManifest.Latest.get("session.next.step.ended")).toBe(SessionEvent.Step.Ended)
     expect(EventManifest.Latest.get("todo.updated")).toBe(Todo.Event.Updated)
     expect(EventManifest.Latest.has("ide.installed")).toBe(false)

packages/opencode/test/server/httpapi-exercise/index.ts

@@ -980,6 +980,28 @@ const scenarios: Scenario[] = [
       headers: ctx.headers(),
     }))
     .json(404, object, "status"),
+  http.protected
+    .post("/api/session/{sessionID}/revert/stage", "v2.session.revert.stage")
+    .at((ctx) => ({
+      path: route("/api/session/{sessionID}/revert/stage", { sessionID: "ses_httpapi_missing" }),
+      headers: { ...ctx.headers(), "content-type": "application/json" },
+      body: { messageID: "msg_httpapi_missing" },
+    }))
+    .json(404, object, "status"),
+  http.protected
+    .post("/api/session/{sessionID}/revert/clear", "v2.session.revert.clear")
+    .at((ctx) => ({
+      path: route("/api/session/{sessionID}/revert/clear", { sessionID: "ses_httpapi_missing" }),
+      headers: ctx.headers(),
+    }))
+    .json(404, object, "status"),
+  http.protected
+    .post("/api/session/{sessionID}/revert/commit", "v2.session.revert.commit")
+    .at((ctx) => ({
+      path: route("/api/session/{sessionID}/revert/commit", { sessionID: "ses_httpapi_missing" }),
+      headers: ctx.headers(),
+    }))
+    .json(404, object, "status"),
   http.protected
     .get("/api/session/{sessionID}/message", "v2.session.messages")
     .at((ctx) => ({