fix(release): preserve Homebrew formula version (#2488)

scripts/release/kandev.rb

@@ -3,6 +3,8 @@
 class Kandev < Formula
   desc "Manage tasks, orchestrate agents, review changes, and ship value"
   homepage "https://github.com/kdlbs/kandev"
+  # Conditional asset names end in x64/arm64; without this, Homebrew uses version 64.
+  version "__VERSION__"
   license "AGPL-3.0-only"
 
   on_macos do

scripts/release/update-homebrew-tap.sh

@@ -118,6 +118,7 @@ mkdir -p "$(dirname "$FORMULA_PATH")"
 GITHUB_BASE="https://github.com/kdlbs/kandev/releases/download/${TAG}"
 
 sed \
+  -e "s|__VERSION__|$VERSION|g" \
   -e "s|__GITHUB_BASE__|$GITHUB_BASE|g" \
   -e "s|__SHA_MACOS_ARM64__|$SHA_MACOS_ARM64|g" \
   -e "s|__SHA_MACOS_X64__|$SHA_MACOS_X64|g" \