refactor: clean up legacy code, rename hopper to entity_extractor, and add third-party notices

- Add NOTICE file and README license references for mobile-use and finalrun-agent
- Add derivative attribution headers to 17 files derived from mobile-use
- Rename hopper agent to entity_extractor across prompts, tools, and configs
- Remove obsolete adb_tunnel, ApiBaseUrl, and legacy CLI utility scripts
- Replace legacy examples with native Artemis diagnostic and workflow examples
- Update unit and tool tests to validate entity_extractor and SDK builders

artemis/config/__init__.py

@@ -83,6 +83,7 @@ from artemis.config.constants import (
     ENV_ARTEMIS_TRACES_DIR,
     ENV_ARTEMIS_USE_FILE_API,
     ENV_ARTEMIS_USE_USER_DIR,
+    ENV_OPENROUTER_API_KEY,
     ENV_OPEN_ROUTER_API_KEY,
     ENV_OPENAI_API_KEY,
     ENV_OPENAI_BASE_URL,
@@ -100,7 +101,6 @@ from artemis.config.constants import (
     LLMUtilsNodeWithFallback,
 )
 from artemis.config.llm import (
-    CyFunctionDetector,
     LLM,
     LLMConfig,
     LLMConfigUtils,
@@ -196,7 +196,6 @@ __all__ = [
     "get_ls_address_file",
     "is_frozen_bundle",
     # LLM Config & Models
-    "CyFunctionDetector",
     "LLM",
     "LLMWithFallback",
     "LLMConfigUtils",
@@ -296,6 +295,7 @@ __all__ = [
     "ENV_OPENAI_API_KEY",
     "ENV_OPENAI_BASE_URL",
     "ENV_ANTHROPIC_API_KEY",
+    "ENV_OPENROUTER_API_KEY",
     "ENV_OPEN_ROUTER_API_KEY",
     "ENV_XAI_API_KEY",
     "ENV_ARTEMIS_EXPLORER_VERSION",