Enhance AI Agent Integration and Tool Command Functionality

- Added support for JSON in CMake configuration for AI integrations.
- Implemented new tool commands: resource-list and dungeon-list-sprites.
- Created ToolDispatcher for managing tool command execution.
- Refactored CMake structure to include agent sources and improve build configuration.
- Updated agent roadmap and README documentation to reflect current status and next steps.

src/cli/agent.cmake

@@ -0,0 +1,46 @@
+set(YAZE_AGENT_SOURCES
+  cli/handlers/agent/tool_commands.cc
+  cli/service/agent/conversational_agent_service.cc
+  cli/service/agent/tool_dispatcher.cc
+  cli/service/ai/ai_service.cc
+  cli/service/ai/ollama_ai_service.cc
+  cli/service/ai/prompt_builder.cc
+  cli/service/ai/service_factory.cc
+  cli/service/planning/policy_evaluator.cc
+  cli/service/planning/proposal_registry.cc
+  cli/service/planning/tile16_proposal_generator.cc
+  cli/service/resources/resource_catalog.cc
+  cli/service/resources/resource_context_builder.cc
+  cli/service/rom/rom_sandbox_manager.cc
+)
+
+if(YAZE_WITH_JSON)
+  list(APPEND YAZE_AGENT_SOURCES cli/service/ai/gemini_ai_service.cc)
+endif()
+
+add_library(yaze_agent STATIC ${YAZE_AGENT_SOURCES})
+
+target_link_libraries(yaze_agent
+  PUBLIC
+    yaze_common
+    ${ABSL_TARGETS}
+)
+
+target_include_directories(yaze_agent
+  PUBLIC
+    ${CMAKE_SOURCE_DIR}/src
+    ${CMAKE_SOURCE_DIR}/incl
+    ${CMAKE_SOURCE_DIR}/third_party/httplib
+    ${CMAKE_SOURCE_DIR}/src/lib
+)
+
+if(SDL2_INCLUDE_DIR)
+  target_include_directories(yaze_agent PUBLIC ${SDL2_INCLUDE_DIR})
+endif()
+
+if(YAZE_WITH_JSON)
+  target_link_libraries(yaze_agent PUBLIC nlohmann_json::nlohmann_json)
+  target_compile_definitions(yaze_agent PUBLIC YAZE_WITH_JSON)
+endif()
+
+set_target_properties(yaze_agent PROPERTIES POSITION_INDEPENDENT_CODE ON)