Rename HOMEBREW_TAP_TOKEN to GH_PAT with broader scope

The GitHub PAT needs write access to both this repo (for creating
releases) and the homebrew-tap repo (for updating the formula).
Renamed to GH_PAT and updated docs to clarify required permissions.

Author: rgarcia

.github/workflows/release.yaml

@@ -39,6 +39,6 @@ jobs:
           version: '~> v2'
           args: release --clean
         env:
-          GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GH_PAT }}
           GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

DEVELOPMENT.md

@@ -83,9 +83,9 @@ The following secrets must be configured in the repository settings:
 
 | Secret | Description |
 |--------|-------------|
+| `GH_PAT` | GitHub Personal Access Token with `repo` scope. Must have write access to both this repository (for creating releases) and `onkernel/homebrew-tap` (for updating the Homebrew formula). Create at https://github.com/settings/tokens/new?scopes=repo |
 | `GORELEASER_KEY` | GoReleaser Pro license key (required for npm and homebrew publishing) |
 | `NPM_TOKEN` | npm access token for publishing `@onkernel/cli` |
-| `HOMEBREW_TAP_TOKEN` | GitHub PAT with write access to `onkernel/homebrew-tap` repository |
 
 #### Local dry-run (optional)