fix: restore release scripts and address all PR review comments

  - Restore create-release-packages.sh to original with full generate_commands/
    rewrite_paths logic; add kimi case using create_kimi_skills function
  - Restore create-release-packages.ps1 to original with full Generate-Commands/
    Rewrite-Paths logic; add kimi case using New-KimiSkills function
  - Restore create-github-release.sh to original with proper $1 argument
    handling and VERSION_NO_V; add kimi zip entries
  - Add test_ai_help_includes_kimi for consistency with other agents
  - Strengthen test_kimi_in_powershell_validate_set to check ValidateSet

Author: Digi-Bo

.github/workflows/scripts/create-github-release.sh

@@ -1,31 +1,20 @@
 #!/usr/bin/env bash
-
-# Create GitHub Release with all agent template packages
-#
-# This script creates a GitHub release and uploads all generated zip archives
-# as release assets.
-
 set -euo pipefail
 
-#==============================================================================
-# Configuration
-#==============================================================================
-
-# Version from git tag or environment
-VERSION="${VERSION:-$(git describe --tags --always 2>/dev/null || echo 'dev')}"
-VERSION_NO_V="${VERSION#v}"
+# create-github-release.sh
+# Create a GitHub release with all template zip files
+# Usage: create-github-release.sh <version>
 
-# Release directory
-RELEASE_DIR=".genreleases"
+if [[ $# -ne 1 ]]; then
+  echo "Usage: $0 <version>" >&2
+  exit 1
+fi
 
-#==============================================================================
-# Main
-#==============================================================================
+VERSION="$1"
 
-echo "Creating GitHub release for version: $VERSION"
-echo ""
+# Remove 'v' prefix from version for release title
+VERSION_NO_V=${VERSION#v}
 
-# Create the release with all agent packages
 gh release create "$VERSION" \
   .genreleases/spec-kit-template-copilot-sh-"$VERSION".zip \
   .genreleases/spec-kit-template-copilot-ps-"$VERSION".zip \