Bug: Broken HTML structure in show and index views

[fusion94]

Description

1. show.html.erb — Version partial (outputs its own <tr>) rendered inside header <tr>, creating nested/invalid <tr> tags
2. index.html.erb — Empty state <td> not wrapped in a <tr>

Acceptance Criteria

• show.html.erb renders version partial outside the header row
• index.html.erb wraps empty state in a <tr>
• HTML validates without nesting errors