feat: Add Auggie CLI (Augment Code) Integration (#520)

* feat: add Augment Code IDE support with multi-location installation options

- Add Augment Code to supported IDE list in installer CLI and interactive prompts
- Configure multi-location setup for Augment Code commands:
  - User Commands: ~/.augment/commands/bmad/ (global, user-wide)
  - Workspace Commands: ./.augment/commands/bmad/ (project-specific, team-shared)
- Update IDE configuration with proper location handling and tilde expansion
- Add interactive prompt for users to select installation locations
- Update documentation in bmad-kb.md to include Augment Code in supported IDEs
- Implement setupAugmentCode method with location selection and file installation

This enables BMAD Method integration with Augment Code's custom command system,
allowing users to access BMad agents via /agent-name slash commands in both
global and project-specific contexts.

* Added options to choose the rule locations

* Update instruction to match with namespace for commands

* Update instruction to match with namespace for commands

* Renamed Augment Code to Auggie CLI (Augment Code)

---------

Co-authored-by: Hau Vo <hauvo@Haus-Mac-mini.local>
Co-authored-by: Brian <bmadcode@gmail.com>

tools/installer/lib/installer.js

@@ -408,7 +408,12 @@ class Installer {
     if (ides.length > 0) {
       for (const ide of ides) {
         spinner.text = `Setting up ${ide} integration...`;
-        const preConfiguredSettings = ide === 'github-copilot' ? config.githubCopilotConfig : null;
+        let preConfiguredSettings = null;
+        if (ide === 'github-copilot') {
+          preConfiguredSettings = config.githubCopilotConfig;
+        } else if (ide === 'auggie-cli') {
+          preConfiguredSettings = config.augmentCodeConfig;
+        }
         await ideSetup.setup(ide, installDir, config.agent, spinner, preConfiguredSettings);
       }
     }