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/models/report.py

@@ -1,5 +1,5 @@
 # [DEF:backend.src.models.report:Module]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @SEMANTICS: reports, models, pydantic, normalization, pagination
 # @PURPOSE: Canonical report schemas for unified task reporting across heterogeneous task types.
 # @LAYER: Domain
@@ -20,7 +20,7 @@ from pydantic import BaseModel, Field, field_validator, model_validator
 
 
 # [DEF:TaskType:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: Must contain valid generic task type mappings.
 # @SEMANTICS: enum, type, task
 # @PURPOSE: Supported normalized task report types.
@@ -35,7 +35,7 @@ class TaskType(str, Enum):
 
 
 # [DEF:ReportStatus:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: TaskStatus enum mapping logic holds.
 # @SEMANTICS: enum, status, task
 # @PURPOSE: Supported normalized report status values.
@@ -48,7 +48,7 @@ class ReportStatus(str, Enum):
 
 
 # [DEF:ErrorContext:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: The properties accurately describe error state.
 # @SEMANTICS: error, context, payload
 # @PURPOSE: Error and recovery context for failed/partial reports.
@@ -73,7 +73,7 @@ class ErrorContext(BaseModel):
 
 
 # [DEF:TaskReport:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: Must represent canonical task record attributes.
 # @SEMANTICS: report, model, summary
 # @PURPOSE: Canonical normalized report envelope for one task execution.
@@ -130,7 +130,7 @@ class TaskReport(BaseModel):
 
 
 # [DEF:ReportQuery:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: Time and pagination queries are mutually consistent.
 # @SEMANTICS: query, filter, search
 # @PURPOSE: Query object for server-side report filtering, sorting, and pagination.
@@ -188,7 +188,7 @@ class ReportQuery(BaseModel):
 
 
 # [DEF:ReportCollection:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: Represents paginated data correctly.
 # @SEMANTICS: collection, pagination
 # @PURPOSE: Paginated collection of normalized task reports.
@@ -213,7 +213,7 @@ class ReportCollection(BaseModel):
 
 
 # [DEF:ReportDetailView:Class]
-# @TIER: CRITICAL
+# @COMPLEXITY: 5
 # @INVARIANT: Incorporates a report and logs correctly.
 # @SEMANTICS: view, detail, logs
 # @PURPOSE: Detailed report representation including diagnostics and recovery actions.