[codex] Fix hyperlink-aware key-value table rendering

[sayan-oai]

Why

The key/value markdown table renderer added in #24636 still operates on Line values, while table cells and rendered table output now carry HyperlinkLine. That mismatch breaks codex-tui compilation on main and would risk losing semantic web-link annotations if corrected by flattening the values.

What changed

• Make key/value record rendering wrap and emit HyperlinkLine values consistently with the existing grid renderer.
• Remap wrapped hyperlink ranges and shift them when value content is prefixed by record-mode indentation or labels.
• Add focused coverage verifying key/value fallback output preserves web-link destinations.

Verification

• just test -p codex-tui -E 'test(key_value_table_keeps_web_annotations) | test(/table_renders_(key_value_records_when_compact_fragmentation_is_systemic_snapshot|stacked_key_value_records_when_path_column_becomes_too_narrow_snapshot|records_when_multiple_prose_columns_are_starved_snapshot)/)'

[fcoury-oai]

Smoke tested the feature on my original PR this fixes and it works as expected. Approved! 👍