docs(cli): keep Homebrew picker setup on first run

docs/image-picker-shell-setup.md

@@ -24,6 +24,11 @@ cleans up its uncommitted files when I/O returns. If the process exits first,
 recovery or staging files can remain, as with an interrupted explicit installation.
 At most one setup worker runs in a CLI process.
 
+Homebrew installations use the same first-run setup described above. Installing,
+upgrading, or uninstalling the cask does not edit shell profiles or change picker
+preferences. After an eligible interactive `openai` run, open a new terminal to
+load the shortcut.
+
 To configure or remove persistent shortcuts explicitly:
 
 ```sh

docs/releasing.md

@@ -11,6 +11,10 @@ The reviewed checksums cover Linux and macOS hosts on x86_64 and arm64. The
 host architecture does not limit the Linux, macOS, and Windows release targets
 configured in `.goreleaser.yml`.
 
+The Homebrew cask installs the binary, ordinary completions, and manual without
+running picker setup hooks. Homebrew users receive the existing first-run setup;
+see [shell setup](image-picker-shell-setup.md) for eligibility and explicit setup.
+
 Linux packages install one fish startup file at
 `/usr/share/fish/vendor_conf.d/openai-picker.fish`. It activates at the first
 prompt after user configuration, respects opt-out and custom bindings, and only

scripts/release_artifacts_test.go

@@ -443,6 +443,9 @@ func TestGoReleaserPreservesArtifactsWithoutApplicationHooks(t *testing.T) {
 		t.Fatal("Homebrew cask publishing configuration was removed")
 	}
 	cask := config.HomebrewCasks[0]
+	if len(cask.Hooks.Pre) != 0 || len(cask.Hooks.Post) != 0 {
+		t.Fatal("Homebrew cask must leave picker setup to the existing first-run path")
+	}
 	if cask.Repository.Name != "homebrew-tools" || cask.Repository.Token != "{{ .Env.HOMEBREW_TAP_GITHUB_TOKEN }}" {
 		t.Errorf("Homebrew repository configuration = %+v", cask.Repository)
 	}
@@ -604,5 +607,9 @@ type goReleaserConfig struct {
 		} `yaml:"repository"`
 		Completions map[string]string `yaml:"completions"`
 		Manpages    []string          `yaml:"manpages"`
+		Hooks       struct {
+			Pre  map[string]string `yaml:"pre"`
+			Post map[string]string `yaml:"post"`
+		} `yaml:"hooks"`
 	} `yaml:"homebrew_casks"`
 }