feat: major architectural refactor

- Refactor memory system (episodic/STM/LTM with components)
- Implement complete subtitle domain (scanner, matcher, placer)
- Add YAML workflow infrastructure
- Externalize knowledge base (patterns, release groups)
- Add comprehensive testing suite
- Create manual testing CLIs

tests/test_prompts_critical.py

@@ -117,7 +117,7 @@ class TestPromptBuilderMemoryContext:
         tools = make_tools(settings)
         builder = PromptBuilder(tools)
 
-        memory.ltm.set_config("download_folder", "/test/downloads")
+        memory.ltm.download_folder = "/test/downloads"
 
         prompt = builder.build_system_prompt()
 
@@ -212,12 +212,12 @@ class TestPromptBuilderStructure:
         tools = make_tools(settings)
         builder = PromptBuilder(tools)
 
-        memory.ltm.set_config("test_key", "test_value")
+        memory.ltm.download_folder = "/test/downloads"
 
         context = builder._format_config_context(memory)
 
         assert "CONFIGURATION" in context
-        assert "test_key" in context
+        assert "download_folder" in context
 
 
 class TestPromptBuilderEdgeCases: