revert: Use Homebrew formula instead of cask

Reverts homebrew_casks back to brews configuration. Per Homebrew's
official guidelines, formulas are the correct distribution method
for CLI tools. Casks are intended for GUI apps and closed-source
binaries.

This also removes the macOS Gatekeeper quarantine issue that
required users to run xattr commands after installation.

Author: josephgoksu

.goreleaser.yaml

@@ -101,7 +101,7 @@ release:
 
     **Homebrew (macOS/Linux):**
     ```bash
-    brew install --cask josephgoksu/tap/taskwing
+    brew install josephgoksu/tap/taskwing
     ```
 
     **Manual Installation:**
@@ -121,8 +121,8 @@ release:
 
     Released by [GoReleaser](https://github.com/goreleaser/goreleaser) 🚀
 
-# Homebrew cask (replaces deprecated brews config)
-homebrew_casks:
+# Homebrew formula
+brews:
   - name: taskwing
     description: "AI-Native Task Management - Generate context-aware dev tasks that match your architecture"
     homepage: "https://taskwing.app"
@@ -131,11 +131,11 @@ homebrew_casks:
       owner: josephgoksu
       name: homebrew-tap
       token: "{{ .Env.HOMEBREW_TAP_TOKEN }}"
-    directory: Casks
+    directory: Formula
     commit_author:
       name: goreleaserbot
       email: bot@goreleaser.com
-    commit_msg_template: "Brew cask update for {{ .ProjectName }} version {{ .Tag }}"
+    commit_msg_template: "Brew formula update for {{ .ProjectName }} version {{ .Tag }}"
 
 # Scoop bucket for Windows removed - focusing on Linux/macOS only
 

CLAUDE.md

@@ -4,7 +4,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## CLI Binaries
 
-- **`taskwing`**: Production binary installed via Homebrew (`brew install --cask josephgoksu/tap/taskwing`)
+- **`taskwing`**: Production binary installed via Homebrew (`brew install josephgoksu/tap/taskwing`)
 - **`./bin/taskwing`**: Local development binary generated by [air](https://github.com/air-verse/air) for hot-reloading
 
 Use `./bin/taskwing` during development, `taskwing` for testing production behavior.

GEMINI.md

@@ -124,7 +124,7 @@ Configuration in `.claude/settings.json` enables auto-continuation through plans
 
 ## CLI Binaries
 
-- **`taskwing`**: Production binary installed via Homebrew (`brew install --cask josephgoksu/tap/taskwing`)
+- **`taskwing`**: Production binary installed via Homebrew (`brew install josephgoksu/tap/taskwing`)
 - **`tw`**: Local development binary generated by [air](https://github.com/air-verse/air) for hot-reloading
 
 Use `tw` during development, `taskwing` for testing production behavior.

README.md

@@ -19,17 +19,12 @@ Every session with Claude, Cursor, or Copilot:
 ## The Solution
 
 ```bash
-brew install --cask josephgoksu/tap/taskwing
+brew install josephgoksu/tap/taskwing
 
 taskwing bootstrap   # Extract decisions, patterns, constraints
 taskwing mcp         # Expose to AI via MCP
 ```
 
-> **Upgrading?** If you installed before v1.12, run:
-> ```bash
-> brew uninstall taskwing && brew install --cask josephgoksu/tap/taskwing
-> ```
-
 Your AI now knows your architecture permanently.
 
 ## Results

docs/TUTORIAL.md

@@ -10,7 +10,7 @@ TaskWing extracts architectural knowledge from your codebase and exposes it to A
 
 ```bash
 # 1. Install
-brew install --cask josephgoksu/tap/taskwing
+brew install josephgoksu/tap/taskwing
 
 # 2. Bootstrap your project
 cd your-project