AlgoScan

Optimized all three SKILL.md files using tessl skill review feedback:

| Skill                        | Before | After | Change |
|------------------------------|--------|-------|--------|
| algorand-interaction         | 93%    | 100%  | +7%    |
| alpha-arcade-interaction     | 89%    | 96%   | +7%    |
| haystack-router-interaction  | 93%    | 100%  | +7%    |

Changes:
- algorand-interaction: consolidated three workflow tables into one
  compact table, streamlined Links section, reordered Security before
  References for better flow
- alpha-arcade-interaction: unified microunit explanations (previously
  repeated in three separate sections), trimmed Common Pitfalls to
  remove items already covered in Units section
- haystack-router-interaction: condensed swap direction rules table
  from 7 verbose rows to 3 pattern-based rows, removed redundant
  Key Concepts section (already covered in tool docs)