Link elements with a relation or attach files/elements
<source> <relation-type-or-attaching> <target>claude-sonnet-4-5# Link Elements
Create a relation between elements or attach files/refinement elements. This unified command handles both relations and attachments.
## Current Model Context
- Total elements: !`reqvire search --json | jq -r '.global_counters.total_elements'`
## User Request
${1:+Source element: $1}
${2:+Relation type or 'attaching': $2}
${3:+Target: $3}
${1:-The user will provide source element, relation type (or 'attaching'), and target.}
## Steps
1. **Understand the context:**
- Identify the source element (by name)
- Determine if this is a relation or attachment ('attaching'...