Remove emojis from all markdown docs, add consolidation plan

- Strip emojis from 47 markdown files across docs/, sql/, and root
- Add docs/DOCS_CONSOLIDATION_PLAN.md with plan to reduce 45 docs to 8
- Establish no-emoji rule for documentation going forward

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

MACHINE_QUICK_REFERENCE.md

@@ -252,14 +252,14 @@ cmd.Parameters.Append cmd.CreateParameter("@param", 200, 1, 50, IIf(value <> "",
 
 ## Security Checklist
 
-- ✅ All queries use parameterized commands
-- ✅ All output uses Server.HTMLEncode()
-- ✅ All numeric inputs validated with IsNumeric()
-- ✅ All string inputs have length limits
-- ✅ NULL values handled properly
-- ✅ No direct variable interpolation in SQL
-- ✅ Error messages don't expose sensitive data
-- ✅ Database connections always closed
+-  All queries use parameterized commands
+-  All output uses Server.HTMLEncode()
+-  All numeric inputs validated with IsNumeric()
+-  All string inputs have length limits
+-  NULL values handled properly
+-  No direct variable interpolation in SQL
+-  Error messages don't expose sensitive data
+-  Database connections always closed
 
 ---