macOS: README advertises an Intel (x86_64) .dmg, but no Intel build is published

Summary

The README states that the macOS .dmg supports both Apple Silicon and Intel, but no Intel (x86_64) macOS artifact is actually published in any release.

README claim

macOS: .dmg (Apple Silicon and Intel)

Actual release assets (v0.6.11)

LLM-Wiki-0.6.11-windows-x64-portable.zip
llm-wiki-extension-0.6.11.zip
LLM.Wiki-0.6.11-1.aarch64.rpm
LLM.Wiki-0.6.11-1.x86_64.rpm
LLM.Wiki_0.6.11_aarch64.AppImage
LLM.Wiki_0.6.11_aarch64.dmg      <-- only macOS dmg, arm64 only
LLM.Wiki_0.6.11_amd64.AppImage
LLM.Wiki_0.6.11_amd64.deb
LLM.Wiki_0.6.11_arm64.deb
LLM.Wiki_0.6.11_x64-setup.exe
LLM.Wiki_0.6.11_x64_en-US.msi
LLM.Wiki_aarch64.app.tar.gz      <-- arm64 only

There is no x64.dmg / x86_64-apple-darwin bundle. The same holds for v0.6.10 and v0.6.9.

Root cause

.github/workflows/build.yml has a single macOS row in the matrix:

- platform: macos-latest
  args: '--target aarch64-apple-darwin'
  rust_target: aarch64-apple-darwin

Since macos-latest is now Apple Silicon, no Intel bundle is ever produced. Note that Linux gets both aarch64 and amd64 artifacts, so the omission looks unintentional rather than a deliberate drop of Intel support.

Suggested fix

Either publish Intel builds by adding a matrix row, e.g.:

- platform: macos-13          # Intel runner
  args: '--target x86_64-apple-darwin'
  rust_target: x86_64-apple-darwin

(or cross-compile a universal binary with --target universal-apple-darwin from the existing runner)

…or, if Intel support is intentionally out of scope, correct the README so Intel Mac users know upfront that they need to build from source.

Notes

Building from source on an Intel Mac appears to work fine — the toolchain requirements are all available for x86_64-apple-darwin. The issue is only that the README sets an expectation the releases do not meet.

Environment: macOS 15.7.9, x86_64.