docs: clarify mac packaging guidance

AGENTS.md

@@ -29,6 +29,7 @@
 - Prefer Bun for TypeScript execution (scripts, dev, tests): `bun <file.ts>` / `bunx <tool>`.
 - Run CLI in dev: `pnpm clawdbot ...` (bun) or `pnpm dev`.
 - Node remains supported for running built output (`dist/*`) and production installs.
+- Mac packaging (dev): `scripts/package-mac-app.sh` defaults to current arch. Release checklist: `docs/platforms/mac/release.md`.
 - Type-check/build: `pnpm build` (tsc)
 - Lint/format: `pnpm lint` (oxlint), `pnpm format` (oxfmt)
 - Tests: `pnpm test` (vitest); coverage: `pnpm test:coverage`

docs/platforms/mac/release.md

@@ -24,6 +24,7 @@ This app now ships Sparkle auto-updates. Release builds must be Developer ID–s
 Notes:
 - `APP_BUILD` maps to `CFBundleVersion`/`sparkle:version`; keep it numeric + monotonic (no `-beta`), or Sparkle compares it as equal.
 - Defaults to the current architecture (`$(uname -m)`). For release/universal builds, set `BUILD_ARCHS="arm64 x86_64"` (or `BUILD_ARCHS=all`).
+- Use `scripts/package-mac-dist.sh` for release artifacts (zip + DMG + notarization). Use `scripts/package-mac-app.sh` for local/dev packaging.
 
 ```bash
 # From repo root; set release IDs so Sparkle feed is enabled.