refactor(semantics): migrate legacy @TIER to @COMPLEXITY annotations

- Replaced @TIER: TRIVIAL with @COMPLEXITY: 1
- Replaced @TIER: STANDARD with @COMPLEXITY: 3
- Replaced @TIER: CRITICAL with @COMPLEXITY: 5
- Manually elevated specific critical/complex components to levels 2 and 4
- Ignored legacy, specs, and node_modules directories
- Updated generated semantic map

backend/tests/services/clean_release/test_approval_service.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_approval_service:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: tests, clean-release, approval, lifecycle, gate
 # @PURPOSE: Define approval gate contracts for approve/reject operations over immutable compliance evidence.
 # @LAYER: Tests

backend/tests/services/clean_release/test_candidate_manifest_services.py

@@ -1,5 +1,5 @@
 # [DEF:test_candidate_manifest_services:Module]
-# @TIER: STANDARD
+# @COMPLEXITY: 3
 # @PURPOSE: Test lifecycle and manifest versioning for release candidates.
 # @LAYER: Tests
 

backend/tests/services/clean_release/test_compliance_execution_service.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_compliance_execution_service:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: tests, clean-release, compliance, pipeline, run-finalization
 # @PURPOSE: Validate stage pipeline and run finalization contracts for compliance execution.
 # @LAYER: Tests

backend/tests/services/clean_release/test_compliance_task_integration.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_compliance_task_integration:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: tests, clean-release, compliance, task-manager, integration
 # @PURPOSE: Verify clean release compliance runs execute through TaskManager lifecycle with observable success/failure outcomes.
 # @LAYER: Tests

backend/tests/services/clean_release/test_demo_mode_isolation.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_demo_mode_isolation:Module]
-# @TIER: STANDARD
+# @COMPLEXITY: 3
 # @SEMANTICS: clean-release, demo-mode, isolation, namespace, repository
 # @PURPOSE: Verify demo and real mode namespace isolation contracts before TUI integration.
 # @LAYER: Tests

backend/tests/services/clean_release/test_policy_resolution_service.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_policy_resolution_service:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: clean-release, policy-resolution, trusted-snapshots, contracts
 # @PURPOSE: Verify trusted policy snapshot resolution contract and error guards.
 # @LAYER: Tests

backend/tests/services/clean_release/test_publication_service.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_publication_service:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: tests, clean-release, publication, revoke, gate
 # @PURPOSE: Define publication gate contracts over approved candidates and immutable publication records.
 # @LAYER: Tests

backend/tests/services/clean_release/test_report_audit_immutability.py

@@ -1,5 +1,5 @@
 # [DEF:backend.tests.services.clean_release.test_report_audit_immutability:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: tests, clean-release, report, audit, immutability, append-only
 # @PURPOSE: Validate report snapshot immutability expectations and append-only audit hook behavior for US2.
 # @LAYER: Tests