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>

sql/DATA_MIGRATION_EXPLAINED.md

@@ -94,9 +94,9 @@ ALTER TABLE machines
 - Removes IP columns because they'll go in communications table
 
 **Impact on Existing Data:**
-- ✅ All 275 existing machines preserved (no data loss)
-- ✅ New columns added with NULL defaults (safe)
-- ✅ ipaddress1/ipaddress2 dropped (but backed up in Script 1)
+-  All 275 existing machines preserved (no data loss)
+-  New columns added with NULL defaults (safe)
+-  ipaddress1/ipaddress2 dropped (but backed up in Script 1)
 
 **After This Script:**
 ```
@@ -506,9 +506,9 @@ machine_pc_relationships:    ~100 records (unchanged)
 ## Critical Safety Features
 
 ### 1. No Data Loss
-- ✅ Old tables are NOT dropped (kept for 30 days)
-- ✅ Can roll back if issues found
-- ✅ Data copied, not moved
+-  Old tables are NOT dropped (kept for 30 days)
+-  Can roll back if issues found
+-  Data copied, not moved
 
 ### 2. Duplicate Prevention
 ```sql