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/src/core/superset_profile_lookup.py

@@ -1,6 +1,6 @@
 # [DEF:backend.src.core.superset_profile_lookup:Module]
 #
-# @TIER:      STANDARD
+# @COMPLEXITY: 3
 # @SEMANTICS: superset, users, lookup, profile, pagination, normalization
 # @PURPOSE:   Provides environment-scoped Superset account lookup adapter with stable normalized output.
 # @LAYER:     Core
@@ -19,7 +19,7 @@ from .utils.network import APIClient, AuthenticationError, SupersetAPIError
 
 
 # [DEF:SupersetAccountLookupAdapter:Class]
-# @TIER: STANDARD
+# @COMPLEXITY: 3
 # @PURPOSE: Lookup Superset users and normalize candidates for profile binding.
 class SupersetAccountLookupAdapter:
     # [DEF:__init__:Function]