feat: support manual add and edit for memory facts (#1538)

* feat: support manual add and edit for memory facts

* fix: restore memory updater save helper

* fix: address memory fact review feedback

* fix: remove duplicate memory fact edit action

* docs: simplify memory fact review setup

* docs: relax memory review startup instructions

* fix: clear rebase marker in memory settings page

* fix: address memory fact review and format issues

* fix: address memory fact review feedback

* refactor: make memory fact updates explicit patch semantics

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>

frontend/src/core/memory/api.ts

@@ -1,6 +1,10 @@
 import { getBackendBaseURL } from "../config";
 
-import type { UserMemory } from "./types";
+import type {
+  MemoryFactInput,
+  MemoryFactPatchInput,
+  UserMemory,
+} from "./types";
 
 async function readMemoryResponse(
   response: Response,
@@ -39,3 +43,33 @@ export async function deleteMemoryFact(factId: string): Promise<UserMemory> {
   );
   return readMemoryResponse(response, "Failed to delete memory fact");
 }
+
+export async function createMemoryFact(
+  input: MemoryFactInput,
+): Promise<UserMemory> {
+  const response = await fetch(`${getBackendBaseURL()}/api/memory/facts`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify(input),
+  });
+  return readMemoryResponse(response, "Failed to create memory fact");
+}
+
+export async function updateMemoryFact(
+  factId: string,
+  input: MemoryFactPatchInput,
+): Promise<UserMemory> {
+  const response = await fetch(
+    `${getBackendBaseURL()}/api/memory/facts/${encodeURIComponent(factId)}`,
+    {
+      method: "PATCH",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(input),
+    },
+  );
+  return readMemoryResponse(response, "Failed to update memory fact");
+}