fix: Remove all emojis from documentation for cross-platform compliance

Replaced 50+ emoji types with ASCII text markers for consistent rendering
across all terminals, editors, and operating systems:

  - Checkmarks/status: [OK], [DONE], [SUCCESS], [PASS]
  - Errors/warnings: [ERROR], [FAIL], [WARNING], [CRITICAL]
  - Actions: [DO], [DO NOT], [REQUIRED], [OPTIONAL]
  - Navigation: [NEXT], [PREVIOUS], [TIP], [NOTE]
  - Progress: [IN PROGRESS], [PENDING], [BLOCKED]

Additional changes:
  - Made paths cross-platform (~/ClaudeTools for Mac/Linux)
  - Fixed database host references to 172.16.3.30
  - Updated START_HERE.md and CONTEXT_RECOVERY_PROMPT.md for multi-OS use

Files updated: 58 markdown files across:
  - .claude/ configuration and agents
  - docs/ documentation
  - projects/ project files
  - Root-level documentation

This enforces the NO EMOJIS rule from directives.md and ensures
documentation renders correctly on all systems.

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

docs/archives/agent-deliveries/AGENT4_SUMMARY.md

@@ -6,7 +6,7 @@ Create 12 models: Context Learning + Integrations + Backup + API + Junction
 ## Delivered
 **7 of 12 models** - All production-ready, spec-compliant
 
-### ✅ Created Models
+### [OK] Created Models
 1. `environmental_insight.py` - Environmental insights (context learning)
 2. `external_integration.py` - External system interactions log
 3. `integration_credential.py` - Encrypted OAuth/API credentials
@@ -15,7 +15,7 @@ Create 12 models: Context Learning + Integrations + Backup + API + Junction
 6. `work_item_tag.py` - Work items ↔ tags junction
 7. `infrastructure_tag.py` - Infrastructure ↔ tags junction
 
-### ❌ Missing from Spec (Not Created)
+### [ERROR] Missing from Spec (Not Created)
 - `environmental_examples` - No definition found
 - `learning_metrics` - No definition found
 - `backup_schedules` - No definition found
@@ -23,10 +23,10 @@ Create 12 models: Context Learning + Integrations + Backup + API + Junction
 - `api_tokens` - No definition found
 
 ## Status
-✅ All created models pass Python syntax validation
-✅ All models use SQLAlchemy 2.0 patterns
-✅ All indexes and constraints match spec
-✅ Package __init__.py updated with new models
+[OK] All created models pass Python syntax validation
+[OK] All models use SQLAlchemy 2.0 patterns
+[OK] All indexes and constraints match spec
+[OK] Package __init__.py updated with new models
 
 ## Action Required
 Clarify missing 5 tables - should they be added to spec?