[IMPROVE]: Trae Support

### Problem Statement

Trae Support, is currently broken, and not well implemented, to better take advantage of features within trae
With Some recent changes and Updates, Trae IDE, now Supports, Custom /Slash Commands, as well as .agents/skills folder support.

We are not limited to .trae/skills let improve the Integration of Speckit, to properly integrate with the skills, as well as Commands.

### Proposed Solution

Trae, Does support global rules, lets Implement it in a way, a user, is asked whether they need global support, or project only. this way, relevant skills as well as rules, and /slash commands, can be implemented, fro trae.

### Alternatives Considered

_No response_

### Component

Specify CLI (initialization, commands)

### AI Agent (if applicable)

None

### Use Cases

using slash commands, inside trae, would work without issues.
it would be possible to implement globally

### Acceptance Criteria

_No response_

### Additional Context

_No response_