fix: preserve discord inbound media filenames

CHANGELOG.md

@@ -36,6 +36,7 @@ Docs: https://docs.openclaw.ai
 - Hooks/doctor: warn when `hooks.transformsDir` points outside the canonical hooks transform directory, so invalid workspace skill paths get a direct recovery hint before the Gateway crash-loops. Fixes #75853. Thanks @midobk.
 - Proxy/audio: convert standard `FormData` bodies before proxy-backed undici fetches, so audio transcription and multipart uploads no longer send `[object FormData]` when `HTTP_PROXY` or `HTTPS_PROXY` is configured. Fixes #48554. Thanks @dco5.
 - Discord: allow explicitly configured ack reactions in tool-only guild channels while keeping automatic lifecycle/status reactions suppressed. Fixes #74922. Thanks @samvilian and @BlueBirdBack.
+- Discord: preserve attachment and sticker filenames when saving inbound media, so agents can see human-readable file names instead of only UUID-based paths. Fixes #59744. Thanks @xela92 and @rockcent.
 - Gateway/diagnostics: include a bounded redacted startup error message in stability bundles, so crash-loop reports identify the failing plugin or contract without exposing secrets. Refs #75797. Thanks @ymebosma.
 - Gateway/pricing: abort in-flight model pricing catalog fetches when Gateway shutdown stops the refresh loop, and avoid post-stop cache writes or refresh timers. Fixes #72208. Thanks @rzcq.
 - Codex/app-server: make startup retry cleanup ownership-aware so concurrent Codex lanes cannot close another lane's freshly restarted shared app-server client. Thanks @vincentkoc.

extensions/discord/src/monitor/message-media.ts

@@ -295,6 +295,7 @@ async function appendResolvedMediaFromAttachments(params: {
         fetched.contentType ?? attachment.content_type,
         "inbound",
         params.maxBytes,
+        attachment.filename,
       );
       params.out.push({
         path: saved.path,
@@ -402,6 +403,7 @@ async function appendResolvedMediaFromStickers(params: {
           fetched.contentType,
           "inbound",
           params.maxBytes,
+          candidate.fileName,
         );
         params.out.push({
           path: saved.path,

extensions/discord/src/monitor/message-utils.test.ts

@@ -94,7 +94,13 @@ function expectSinglePngDownload(params: {
   });
   expectDiscordCdnSsrFPolicy(call.ssrfPolicy);
   expect(saveMediaBuffer).toHaveBeenCalledTimes(1);
-  expect(saveMediaBuffer).toHaveBeenCalledWith(expect.any(Buffer), "image/png", "inbound", 512);
+  expect(saveMediaBuffer).toHaveBeenCalledWith(
+    expect.any(Buffer),
+    "image/png",
+    "inbound",
+    512,
+    params.filePathHint,
+  );
   expect(params.result).toEqual([
     {
       path: params.expectedPath,