fix(desktop): wire Homebrew tap properly (bump-cask -> dedicated tap repo)

- release-desktop.yml bump-cask: clone Lexus2016/homebrew-claude-code-studio via HOMEBREW_TAP_TOKEN and update its cask version+sha; skip cleanly if the secret is absent (release never fails)
- homebrew-tap/README.md: one-time tap setup steps (create homebrew-claude-code-studio repo, seed cask, add HOMEBREW_TAP_TOKEN secret)
- Casks/claude-code-studio.rb: bump to 5.59.0 + arm64 sha

Note: brew install requires the one-time tap repo + secret setup (maintainer); .dmg download works without it.

Author: Lexus2016

.github/workflows/release-desktop.yml

@@ -42,21 +42,28 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - name: Bump Homebrew Cask to released version
+      - name: Update Homebrew tap cask (skips if HOMEBREW_TAP_TOKEN not set)
+        env:
+          TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
         run: |
           set -euo pipefail
+          if [ -z "${TAP_TOKEN:-}" ]; then
+            echo "HOMEBREW_TAP_TOKEN not set — skipping cask bump. See homebrew-tap/README.md to enable the tap."
+            exit 0
+          fi
           VERSION="${GITHUB_REF_NAME#v}"
           DMG="claude-code-studio-${VERSION}-arm64.dmg"
           URL="https://github.com/${GITHUB_REPOSITORY}/releases/download/${GITHUB_REF_NAME}/${DMG}"
           echo "Fetching $URL"
           curl -fL "$URL" -o "$DMG"
           SHA="$(shasum -a 256 "$DMG" | awk '{print $1}')"
-          CASK="homebrew-tap/Casks/claude-code-studio.rb"
+          git clone "https://x-access-token:${TAP_TOKEN}@github.com/${GITHUB_REPOSITORY_OWNER}/homebrew-claude-code-studio.git" tap
+          CASK="tap/Casks/claude-code-studio.rb"
           sed -i -E "s/^  version \".*\"/  version \"${VERSION}\"/" "$CASK"
           sed -i -E "s/^  sha256 .*/  sha256 \"${SHA}\"/" "$CASK"
+          cd tap
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
-          git add "$CASK"
-          git commit -m "chore: bump Homebrew cask to ${VERSION}" || echo "cask unchanged"
+          git add Casks/claude-code-studio.rb
+          git commit -m "chore: claude-code-studio ${VERSION}" || echo "cask unchanged"
           git push

homebrew-tap/Casks/claude-code-studio.rb

@@ -1,6 +1,6 @@
 cask "claude-code-studio" do
-  version "5.58.0"
-  sha256 "a9bbc17fb812556838e021c35b4b9e32106c7ea4f9964e08449f08781cb52ba4"
+  version "5.59.0"
+  sha256 "5af60d3c0045fabec02172c7d7d0c2c8d1a6f17e988b0d801e0f69d609c51128"
 
   url "https://github.com/Lexus2016/claude-code-studio/releases/download/v#{version}/claude-code-studio-#{version}-arm64.dmg"
   name "Claude Code Studio"

homebrew-tap/README.md

@@ -0,0 +1,35 @@
+# Homebrew Tap — Claude Code Studio (macOS desktop)
+
+`Casks/claude-code-studio.rb` here is the **source** of the macOS Cask. Homebrew taps must
+live in a repo named `homebrew-<name>`, so to make `brew install` work you publish this cask
+to a dedicated tap repository. This is a **one-time** setup.
+
+## One-time setup (maintainer)
+
+1. **Create a public repo** `https://github.com/Lexus2016/homebrew-claude-code-studio`.
+2. **Seed it** with the cask from this folder:
+   ```bash
+   git clone https://github.com/Lexus2016/homebrew-claude-code-studio.git
+   cd homebrew-claude-code-studio
+   mkdir -p Casks
+   cp /path/to/claude-code-studio/homebrew-tap/Casks/claude-code-studio.rb Casks/
+   git add Casks && git commit -m "init: claude-code-studio cask" && git push
+   ```
+3. **Enable auto-bump (recommended):** create a fine-grained Personal Access Token with
+   **Contents: write** on `homebrew-claude-code-studio`, and add it to the **main** repo as a
+   secret named `HOMEBREW_TAP_TOKEN`. The `release-desktop.yml` → `bump-cask` job then updates
+   the tap's cask `version` + `sha256` automatically on every release. Without the secret, the
+   job skips cleanly (the release still succeeds) and you bump the cask manually.
+
+## Users install with
+
+```bash
+brew install --cask Lexus2016/claude-code-studio/claude-code-studio
+```
+
+Updates happen **in-app** (the app runs `brew upgrade --cask claude-code-studio` for you), or
+run that command manually.
+
+> **Until the tap repo exists,** install the desktop app by downloading the `.dmg` from the
+> [latest release](https://github.com/Lexus2016/claude-code-studio/releases/latest) — that path
+> needs no Homebrew setup. (Currently the cask is arm64-only; an x64 dmg is also published.)