fix(inclusive-language): replace blacklist terminology with denylist

- Replace blacklisted_tools configuration key and comments in config/artemis.jsonc and README.md with denylisted_tools
- Update AgentGlobalConfig and AgentConfig with denylisted_tools and validation aliases
- Update AgentConfigBuilder and Explorer agent to use denylist conventions
- Update Admin Console replay manager and data engine trace filters
- Update all associated test suites and mock configurations
- Add license headers and clean up test imports

README.md

@@ -303,7 +303,7 @@ All model configurations, thinking budgets, agent capabilities, and tool filteri
   // 4. Agent Capabilities & Tool Filtering
   "agent": {
     "explorer_versions": { "operator": "flash", "validator": "flash" },
-    "blacklisted_tools": {
+    "denylisted_tools": {
       "explorer": ["ask_image_processor", "get_ocr_list", "inspect_region"]
     }
   }