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

tests/unit/test_context.py

@@ -1,3 +1,18 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
 import asyncio
 import pytest
 from artemis.context import ArtemisContext, DeviceContext, DevicePlatform