Fix companion cask: update to desktop-app v0.3.4 and update README

[Copilot]

The companion cask was pointing to the deprecated music-assistant/companion repo at v0.0.74, which no longer exists (HTTP 404). The app has since moved to music-assistant/desktop-app with renamed release assets.

Changes

Casks/companion.rb

• Repository: music-assistant/companion → music-assistant/desktop-app
• Version: 0.0.74 → 0.3.4
• URL: removed v prefix from tag; filename changed from Music.Assistant.Companion_#{arch}.app.tar.gz → Music.Assistant_#{arch}.app.tar.gz
• SHA256: updated for both arm and intel variants
• App bundle: Music Assistant Companion.app → Music Assistant.app
• Metadata: updated name, desc, homepage, and verified domain

url "https://github.com/music-assistant/desktop-app/releases/download/#{version}/Music.Assistant_#{arch}.app.tar.gz",
    verified: "github.com/music-assistant/desktop-app/"

README.md

• Fixed title and typo ("musis" → "Music")
• Added full two-step install commands (brew tap + brew install) in a code block
• Added a link to the music-assistant/desktop-app repository

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Companion app: MacOS homebrew tap outdated</issue_title>
<issue_description>### What version of Music Assistant has the issue?

n/a

How is the MA server installed?

Docker Container

Mandatory: Carefully read the Troubleshooting FAQ and confirm that

• I have examined the logs and tried to resolve this issue
• I have fixed any errors or warnings in the logs that relate to tags
• I am not running MA across a VPN, VLAN, subnet, behind a firewall, or using local SSL or have any other complex network setup
• I am not using or have disabled tools such as AdGuard, Pi-hole or pfSense and retested
• I have checked my network setup to ensure mDNS/multicast is not being blocked
• I have reviewed the Open and Closed Issues and Discussions
• I have reviewed the applicable player or music provider documentation
• I have reviewed the MA Status Page
• I have tried restarting MA and rebooting the host

As Applicable: Carefully read the Troubleshooting FAQ and confirm that

• If using HA, I have confirmed the internal URL is set correctly
• I have tried a wired connection for issues related to interrupted or poor playback quality
• If the problem relates to a device then I have checked the device settings
• If it is a frontend issue, I have tried a different widely used browser
• For voice problems, I have sought help elsewhere before returning here
• For playback problems, I have recycled power to the physical device

The problem

Installation via the tap does not work

How to reproduce

brew tap music-assistant/tap
brew install music-assistant

❯ brew install  music-assistant/tap/companion
==> Downloading https://github.com/music-assistant/companion/releases/download/v0.0.74/Music.Assistant.Companion_aarch64.app.tar.gz
curl: (56) The requested URL returned error: 404

Error: Download failed on Cask 'companion' with message: Download failed: https://github.com/music-assistant/companion/releases/download/v0.0.74/Music.Assistant.Companion_aarch64.app.tar.gz

There is also an existing issue there: #10

Music Providers

n/a

Player Providers

n/a

Full log output

==> Downloading https://github.com/music-assistant/companion/releases/download/v0.0.74/Music.Assistant.Companion_aarch64.app.tar.gz
curl: (56) The requested URL returned error: 404

Error: Download failed on Cask 'companion' with message: Download failed: https://github.com/music-assistant/companion/releases/download/v0.0.74/Music.Assistant.Companion_aarch64.app.tar.gz

Additional information

n/a

What version of Home Assistant Core (if used) are your running

n/a

What type of installation are you running?

Home Assistant Container

On what type of hardware are you running?

Linux

Have you included ALL of the information specified in the Troubleshooting FAQ or explained why you cannot

• Yes</issue_description>

<agent_instructions>My gut feeling is that the tap information is outdated. The desktop app itself can be found in https://github.com/music-assistant/desktop-app</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Companion app: MacOS homebrew tap outdated support#4996

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[MarvinSchenkel]

@copilot Could you also update the readme with the most up to date info as part of this pr?

[Copilot]

@copilot Could you also update the readme with the most up to date info as part of this pr?

Done in commit 8dab6b4. Updated the README with:

• Fixed title and typos
• Added the full two-step install commands (brew tap + brew install)
• Added a link to the new music-assistant/desktop-app repository