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/config/install.config.yaml

@@ -122,6 +122,25 @@ ide-configurations:
       # 3. Simply mention the agent in your prompt (e.g., "As *dev, ...").
       # 4. The Qwen Code CLI will automatically have the context for that agent.
 
+  auggie-cli:
+    name: Auggie CLI (Augment Code)
+    format: multi-location
+    locations:
+      user:
+        name: User Commands (Global)
+        rule-dir: ~/.augment/commands/bmad/
+        description: Available across all your projects (user-wide)
+      workspace:
+        name: Workspace Commands (Project)
+        rule-dir: ./.augment/commands/bmad/
+        description: Stored in your repository and shared with your team
+    command-suffix: .md
+    instructions: |
+      # To use BMad agents in Auggie CLI (Augment Code):
+      # 1. Type /bmad:agent-name (e.g., "/bmad:dev", "/bmad:pm", "/bmad:architect")
+      # 2. The agent will adopt that persona for the conversation
+      # 3. Commands are available based on your selected location(s)
+
   codex:
     name: Codex CLI
     format: project-memory