fix: nested agents now appear in CLI commands

- Fix getAgentsFromDir in bmad-artifacts.js to recursively scan subdirectories
- This ensures agents like cbt-coach and wellness-companion that are in subdirectories are properly found
- Agents now correctly get slash commands in .claude/commands/bmad/mwm/agents/
- All agents from the manifest now have corresponding IDE commands

tools/cli/installers/lib/core/manifest-generator.js

@@ -260,13 +260,13 @@ class ManifestGenerator {
         const principlesMatch = content.match(/<principles>([\s\S]*?)<\/principles>/);
 
         // Build relative path for installation
-        const fileRelativePath = relativePath ? `${relativePath}/${file}` : file;
+        const fileRelativePath = relativePath ? `${relativePath}/${entry.name}` : entry.name;
         const installPath =
           moduleName === 'core'
             ? `${this.bmadFolderName}/core/agents/${fileRelativePath}`
             : `${this.bmadFolderName}/${moduleName}/agents/${fileRelativePath}`;
 
-        const agentName = file.replace('.md', '');
+        const agentName = entry.name.replace('.md', '');
 
         // Helper function to clean and escape CSV content
         const cleanForCSV = (text) => {