Integrate AI Agent Services and Chat Interface

- Added support for AI agent services, including `ConversationalAgentService`, to facilitate user interactions through a chat interface.
- Implemented `ChatTUI` for a terminal-based chat experience, allowing users to send messages and receive responses from the AI agent.
- Updated `EditorManager` to include options for displaying the agent chat widget and performance dashboard.
- Enhanced CMake configurations to include new source files for AI services and chat interface components.

This commit significantly expands the functionality of the z3ed system, paving the way for a more interactive and user-friendly experience in ROM hacking.

src/cli/service/ai/service_factory.cc

@@ -0,0 +1,72 @@
+#include "cli/service/ai/service_factory.h"
+
+#include <iostream>
+
+#include "cli/service/ai/ai_service.h"
+#include "cli/service/ai/gemini_ai_service.h"
+#include "cli/service/ai/ollama_ai_service.h"
+
+namespace yaze {
+namespace cli {
+
+std::unique_ptr<AIService> CreateAIService() {
+  // Priority: Ollama (local) > Gemini (remote) > Mock (testing)
+  const char* provider_env = std::getenv("YAZE_AI_PROVIDER");
+  const char* gemini_key = std::getenv("GEMINI_API_KEY");
+  const char* ollama_model = std::getenv("OLLAMA_MODEL");
+  const char* gemini_model = std::getenv("GEMINI_MODEL");
+
+  // Explicit provider selection
+  if (provider_env && std::string(provider_env) == "ollama") {
+    OllamaConfig config;
+
+    // Allow model override via env
+    if (ollama_model && std::strlen(ollama_model) > 0) {
+      config.model = ollama_model;
+    }
+
+    auto service = std::make_unique<OllamaAIService>(config);
+
+    // Health check
+    if (auto status = service->CheckAvailability(); !status.ok()) {
+      std::cerr << "⚠️  Ollama unavailable: " << status.message() << std::endl;
+      std::cerr << "   Falling back to MockAIService" << std::endl;
+      return std::make_unique<MockAIService>();
+    }
+
+    std::cout << "🤖 Using Ollama AI with model: " << config.model << std::endl;
+    return service;
+  }
+
+  // Gemini if API key provided
+  if (gemini_key && std::strlen(gemini_key) > 0) {
+    GeminiConfig config(gemini_key);
+
+    // Allow model override via env
+    if (gemini_model && std::strlen(gemini_model) > 0) {
+      config.model = gemini_model;
+    }
+
+    auto service = std::make_unique<GeminiAIService>(config);
+
+    // Health check
+    if (auto status = service->CheckAvailability(); !status.ok()) {
+      std::cerr << "⚠️  Gemini unavailable: " << status.message() << std::endl;
+      std::cerr << "   Falling back to MockAIService" << std::endl;
+      return std::make_unique<MockAIService>();
+    }
+
+    std::cout << "🤖 Using Gemini AI with model: " << config.model << std::endl;
+    return service;
+  }
+
+  // Default: Mock service for testing
+  std::cout << "🤖 Using MockAIService (no LLM configured)" << std::endl;
+  std::cout
+      << "   Tip: Set YAZE_AI_PROVIDER=ollama or GEMINI_API_KEY to enable LLM"
+      << std::endl;
+  return std::make_unique<MockAIService>();
+}
+
+}  // namespace cli
+}  // namespace yaze