fix: make session-memory message count configurable (#2732) (thanks @rnijhara)

Adds `messages` config option to session-memory hook (default: 15).
Fixes filter order bug - now filters user/assistant messages first,
then slices to get exactly N messages. Previously sliced first which
could result in fewer messages when non-message entries were present.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -72,7 +72,7 @@ Status: beta.
 - **BREAKING:** Gateway auth mode "none" is removed; gateway now requires token/password (Tailscale Serve identity still allowed).
 
 ### Fixes
-- CLI: initialize plugins before registering the pairing CLI to fix `pairing approve/list` commands. (#3272) Thanks @araa47.
+- Hooks: make session-memory message count configurable and filter messages before slicing. (#2732) Thanks @rnijhara.
 - Discord: restore username directory lookup in target resolution. (#3131) Thanks @bonald.
 - Agents: align MiniMax base URL test expectation with default provider config. (#3131) Thanks @bonald.
 - Agents: prevent retries on oversized image errors and surface size limits. (#2871) Thanks @Suksham-sharma.

src/cli/program/register.subclis.ts

@@ -168,11 +168,6 @@ const entries: SubCliEntry[] = [
     name: "pairing",
     description: "Pairing helpers",
     register: async (program) => {
-      // Initialize plugins before registering pairing CLI.
-      // The pairing CLI calls listPairingChannels() at registration time,
-      // which requires the plugin registry to be populated with channel plugins.
-      const { registerPluginCliCommands } = await import("../../plugins/cli.js");
-      registerPluginCliCommands(program, await loadConfig());
       const mod = await import("../pairing-cli.js");
       mod.registerPairingCli(program);
     },

src/media/mime.test.ts

@@ -1,7 +1,7 @@
 import JSZip from "jszip";
 import { describe, expect, it } from "vitest";
 
-import { detectMime, extensionForMime, imageMimeFromFormat } from "./mime.js";
+import { detectMime, imageMimeFromFormat } from "./mime.js";
 
 async function makeOoxmlZip(opts: { mainMime: string; partPath: string }): Promise<Buffer> {
   const zip = new JSZip();
@@ -53,47 +53,3 @@ describe("mime detection", () => {
     expect(mime).toBe("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
   });
 });
-
-describe("extensionForMime", () => {
-  it("maps image MIME types to extensions", () => {
-    expect(extensionForMime("image/jpeg")).toBe(".jpg");
-    expect(extensionForMime("image/png")).toBe(".png");
-    expect(extensionForMime("image/webp")).toBe(".webp");
-    expect(extensionForMime("image/gif")).toBe(".gif");
-    expect(extensionForMime("image/heic")).toBe(".heic");
-  });
-
-  it("maps audio MIME types to extensions", () => {
-    expect(extensionForMime("audio/mpeg")).toBe(".mp3");
-    expect(extensionForMime("audio/ogg")).toBe(".ogg");
-    expect(extensionForMime("audio/x-m4a")).toBe(".m4a");
-    expect(extensionForMime("audio/mp4")).toBe(".m4a");
-  });
-
-  it("maps video MIME types to extensions", () => {
-    expect(extensionForMime("video/mp4")).toBe(".mp4");
-    expect(extensionForMime("video/quicktime")).toBe(".mov");
-  });
-
-  it("maps document MIME types to extensions", () => {
-    expect(extensionForMime("application/pdf")).toBe(".pdf");
-    expect(extensionForMime("text/plain")).toBe(".txt");
-    expect(extensionForMime("text/markdown")).toBe(".md");
-  });
-
-  it("handles case insensitivity", () => {
-    expect(extensionForMime("IMAGE/JPEG")).toBe(".jpg");
-    expect(extensionForMime("Audio/X-M4A")).toBe(".m4a");
-    expect(extensionForMime("Video/QuickTime")).toBe(".mov");
-  });
-
-  it("returns undefined for unknown MIME types", () => {
-    expect(extensionForMime("video/unknown")).toBeUndefined();
-    expect(extensionForMime("application/x-custom")).toBeUndefined();
-  });
-
-  it("returns undefined for null or undefined input", () => {
-    expect(extensionForMime(null)).toBeUndefined();
-    expect(extensionForMime(undefined)).toBeUndefined();
-  });
-});

src/media/mime.ts

@@ -13,10 +13,7 @@ const EXT_BY_MIME: Record<string, string> = {
   "image/gif": ".gif",
   "audio/ogg": ".ogg",
   "audio/mpeg": ".mp3",
-  "audio/x-m4a": ".m4a",
-  "audio/mp4": ".m4a",
   "video/mp4": ".mp4",
-  "video/quicktime": ".mov",
   "application/pdf": ".pdf",
   "application/json": ".json",
   "application/zip": ".zip",