Add output folder customization to installer

- Add 3rd question: Output folder name (default: design-process)
- Users can customize to docs/, deliverables/, etc.
- Update config.yaml to use dynamic root_folder
- Update template placeholders to use config.root_folder

Balances simplification (3 questions vs 7+) with useful customization.

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

tools/cli/lib/installer.js

@@ -176,7 +176,7 @@ class Installer {
       starting_point: config.starting_point || 'brief',
       communication_language: 'en',
       document_output_language: 'en',
-      output_folder: 'design-process',
+      output_folder: config.root_folder || 'design-process',
       wds_folder: config.wdsFolder,
     };
 
@@ -291,7 +291,7 @@ class Installer {
       '{{user_name}}': config.user_name || 'Designer',
       '{{communication_language}}': 'en',
       '{{document_output_language}}': 'en',
-      '{{output_folder}}': 'design-process',
+      '{{output_folder}}': config.root_folder || 'design-process',
       '{{wds_folder}}': config.wdsFolder || '_wds',
     };
 
@@ -351,7 +351,7 @@ class Installer {
       '{{user_name}}': config.user_name || 'Designer',
       '{{communication_language}}': 'en',
       '{{document_output_language}}': 'en',
-      '{{output_folder}}': 'design-process',
+      '{{output_folder}}': config.root_folder || 'design-process',
       '{{wds_folder}}': config.wdsFolder || '_wds',
     };
 

tools/cli/lib/ui.js

@@ -34,7 +34,7 @@ class UI {
     console.log(chalk.white(`  Target: ${chalk.cyan(projectDir)}`));
     console.log(chalk.dim(`  Agents and workflows will be installed in ${chalk.white('_wds/')}\n`));
 
-    // Minimal 2-question installer
+    // Minimal 3-question installer
     const answers = await inquirer.prompt([
       {
         type: 'input',
@@ -52,13 +52,18 @@ class UI {
         ],
         default: 'brief',
       },
+      {
+        type: 'input',
+        name: 'root_folder',
+        message: 'Output folder name:',
+        default: 'design-process',
+      },
     ]);
 
     return {
       projectDir,
       ...answers,
       wdsFolder: '_wds',
-      root_folder: 'design-process',
       cancelled: false,
     };
   }