/create

Create a standardized research project workspace with templates, Git init, and metadata.

## Goal
Guide the user through `/project-management:create` to spin up a new project directory following the standard blueprint.

## Preparation
1. Collect parameters (ask concise follow-up questions if missing):
   - `project_name` (kebab-case, required)
   - `root` directory (default current workspace)
   - `git_init` (y/n, default yes)
   - `author_name` (default from config)
   - `description`
   - `force` overwrite flag if directory already exists
2. Validate project name against regex `^[a-z][a-z0-9-]*[a-z0-9]$`. Reject uppercase, underscores, or trailing hyphens.
3. Determine `PROJEC...