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

config/artemis.jsonc

@@ -204,8 +204,8 @@
       "operator": "flash",
       "validator": "flash"
     },
-// 🚫 Per-agent Tool Blacklists
-    "blacklisted_tools": {
+// 🚫 Per-agent Tool Denylists
+    "denylisted_tools": {
       "explorer": [
         "ask_image_processor",
         "get_ocr_list",