Refine comments in code examples for clarity and consistency across documentation

Author: paulanunes85

docs/ai-dev-introduction.md

@@ -498,10 +498,10 @@ Step 3 - VS Code Setup (2 minutes):
 #### 🎯 **15-Minute First Experience**
 
 ```java
-// 🎯 Try This: Create a new file and type this comment
+// Try This: Create a new file and type this comment
 // Create a REST API controller for user management with CRUD operations
 
-/* 🤖 AI will suggest something like this: */
+/* AI will suggest something like this: */
 @RestController
 @RequestMapping("/api/users")
 public class UserController {

docs/complete_workshop_guide.md

@@ -1180,7 +1180,7 @@ public class StringPerformanceComparison {
             // Test StringBuilder
             long stringBuilderTime = testStringBuilder(testData);
             
-            // 📈 Performance analysis
+            // Performance analysis
             double improvement = (double) stringConcatTime / stringBuilderTime;
             System.out.printf("StringBuilder is %.2fx faster%n", improvement);
         }
@@ -1284,7 +1284,7 @@ public class DatabaseExample {
         return null;
     }
     
-    // 📋 Simple User class
+    // Simple User class
     static class User {
         String username, email;
         User(String username, String email) {
@@ -1337,7 +1337,7 @@ class DatabaseExample
         return null;
     }
     
-    // 📋 Simple User class
+    // Simple User class
     public class User 
     {
         public string Username { get; set; }
@@ -1359,9 +1359,9 @@ class DatabaseExample
 
 #### 🚨 Understanding the Vulnerability
 
-**💬 Ask Copilot Chat:**
+**Ask Copilot Chat:**
 ```
-🔍 Analyze this code for security vulnerabilities:
+Analyze this code for security vulnerabilities:
 [paste your code here]
 
 Focus on:
@@ -1402,9 +1402,9 @@ username = "' UNION SELECT password, credit_card FROM sensitive_data --"
 
 #### ✅ AI-Suggested Security Fixes
 
-**💬 Ask AI:**
+**Ask AI:**
 ```
-🔧 Fix the SQL injection vulnerability using parameterized queries.
+Fix the SQL injection vulnerability using parameterized queries.
 Also add proper input validation and error handling.
 ```
 
@@ -1562,9 +1562,9 @@ class SecureDatabaseExample
 
 #### 🎯 Advanced Input Validation
 
-**💬 Ask AI:**
+**Ask AI:**
 ```
-🔧 Add comprehensive input validation that includes:
+Add comprehensive input validation that includes:
 1. Null and empty checks
 2. Length restrictions
 3. Character whitelist validation

docs/troubleshooting_guide.md

@@ -563,10 +563,10 @@ class EnterpriseAIDiagnostics:
         for agent_name, agent_func in self.diagnostic_agents.items():
             try:
                 results[agent_name] = agent_func()
-                print(f"✅ {agent_name.title()} diagnostics completed")
+                print(f"{agent_name.title()} diagnostics completed")
             except Exception as e:
                 results[agent_name] = {'error': str(e)}
-                print(f"❌ {agent_name.title()} diagnostics failed: {e}")
+                print(f"{agent_name.title()} diagnostics failed: {e}")
         
         return results
     
@@ -643,7 +643,7 @@ Network Security:
 #!/bin/bash
 # Reference: ../resources/cleanup-azure-infrastructure.sh
 
-echo "🚀 Starting enterprise AI performance optimization..."
+echo "Starting enterprise AI performance optimization..."
 
 # 1. Check AI service health
 curl -s https://api.github.com/copilot/status
@@ -655,7 +655,7 @@ docker stats --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}"
 # See ../resources/cleanup-azure-infrastructure.sh for detailed cleanup
 
 # 4. Generate performance report
-echo "📊 Performance optimization completed"
+echo "Performance optimization completed"
 ```
 
 ---