Refactor CLI Service Structure and Enhance AI Integration

- Restructured CLI service source files to improve organization, moving files into dedicated directories for better maintainability.
- Introduced new AI service components, including `AIService`, `MockAIService`, and `GeminiAIService`, to facilitate natural language command generation.
- Implemented `PolicyEvaluator` and `ProposalRegistry` for enhanced proposal management and policy enforcement in AI workflows.
- Updated CMake configurations to reflect new file paths and ensure proper linking of the restructured components.
- Enhanced test suite with new test workflow generation capabilities, improving the robustness of automated testing.

This commit significantly advances the architecture of the z3ed system, laying the groundwork for more sophisticated AI-driven features and streamlined development processes.

src/cli/service/ai/ai_service.cc

@@ -0,0 +1,30 @@
+#include "cli/service/ai/ai_service.h"
+
+namespace yaze {
+namespace cli {
+
+absl::StatusOr<std::vector<std::string>> MockAIService::GetCommands(
+    const std::string& prompt) {
+  // NOTE: These commands use positional arguments (not --flags) because
+  // the command handlers haven't been updated to parse flags yet.
+  // TODO: Update handlers to use absl::flags parsing
+  
+  if (prompt == "Make all the soldiers in Hyrule Castle wear red armor.") {
+    // Simplified command sequence - just export then import
+    // (In reality, you'd modify the palette file between export and import)
+    return std::vector<std::string>{
+        "palette export sprites_aux1 4 soldier_palette.col"
+        // Would normally modify soldier_palette.col here to change colors
+        // Then import it back
+    };
+  } else if (prompt == "Place a tree") {
+      // Example: Place a tree on the light world map
+      // Command format: map_id x y tile_id (hex)
+      return std::vector<std::string>{"overworld set-tile 0 10 20 0x02E"};
+  }
+  return absl::UnimplementedError("Prompt not supported by mock AI service. Try: 'Make all the soldiers in Hyrule Castle wear red armor.' or 'Place a tree'");
+}
+
+}  // namespace cli
+}  // namespace yaze
+