[codex] refine current limitations structure

[andreichenchik]

Summary

This PR refines the structure of docs/constraints/current-limitations.md to make limitation tracking easier to maintain over time.

Problem

The limitations list had overlapping sections in the collections and outfit areas, which made updates fragmented and increased the chance of inconsistency when implementation status changes.

Cause and User Impact

Related constraints were spread across multiple narrowly scoped entries. This made it harder for documentation maintainers to update a whole behavior area in one place and increased maintenance overhead.

Root Cause

The document grew incrementally by adding separate entries for each gap, without periodic consolidation by domain/theme.

Fix

• Consolidated collection-related gaps into a single thematic section:
  • Collections Model and Filtering Are Partial
• Consolidated outfit-related gaps into a single thematic section:
  • Outfit Creation and Presentation Are Partial
• Kept existing externally referenced anchors intact where required.
• Added profile-confirmation divergence to account deletion limitation text.
• Removed explicit audit-trace markers from the document text.

Validation

• Verified only one file changed:
  • docs/constraints/current-limitations.md
• Verified there are no remaining references to removed anchors across docs/**.
• Verified there are no audit references left in the limitations file.