Promote project-scoped instincts to global scope

# Promote Command

Promote instincts from project scope to global scope in continuous-learning-v2.

## Implementation

Run the instinct CLI using the plugin root path:

```bash
python3 "${CLAUDE_PLUGIN_ROOT}/skills/continuous-learning-v2/scripts/instinct-cli.py" promote [instinct-id] [--force] [--dry-run]
```

Or if `CLAUDE_PLUGIN_ROOT` is not set (manual installation):

```bash
python3 ~/.claude/skills/continuous-learning-v2/scripts/instinct-cli.py promote [instinct-id] [--force] [--dry-run]
```

## Usage

```bash
/promote                      # Auto-detect promotion candidates
/promote --dry-run            # Preview auto-promotion candidates
/promote --force              # Promote all qualified candidates without prompt
/promote grep-before-edit     # Promote one specific instinct from current project