Use git tag name for release package version

Previously tagged builds used the base version from manifest.json
(e.g., "1.0.0") instead of the tag name (e.g., "1.0.0-rc3").

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: richardkmichael

scripts/copy.js

@@ -22,11 +22,11 @@ function getVersionName(baseVersion) {
     // Get short commit hash
     const commitHash = execSync('git rev-parse --short HEAD', { cwd: ROOT, encoding: 'utf8' }).trim();
 
-    // Check if HEAD is tagged (production release)
+    // Check if HEAD is tagged (release build)
     try {
-      execSync('git describe --exact-match HEAD', { cwd: ROOT, encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'] });
-      // HEAD is tagged - production build, use base version
-      return baseVersion;
+      const tag = execSync('git describe --exact-match HEAD', { cwd: ROOT, encoding: 'utf8', stdio: ['pipe', 'pipe', 'pipe'] }).trim();
+      // HEAD is tagged - use tag name as version (strip 'v' prefix if present)
+      return tag.startsWith('v') ? tag.slice(1) : tag;
     } catch {
       // Not tagged - development build
     }