chore: migrate GRACE-Poly anchors to hierarchical dotted naming

Systematic rename of all semantic anchors (#region, [DEF], @RELATION)
across 1400+ files — backend Python, frontend Svelte/TS, specs, docs:
- Flat anchors become Namespace.Module.Entity
- @RELATION references updated to match new anchor paths
- Zero business logic changes

backend/tests/services/test_report_normalizer.py

@@ -1,6 +1,6 @@
 # #region Test.ReportNormalizer [C:3] [TYPE Module] [SEMANTICS test,report,normalizer,task]
 # @BRIEF Tests for services/reports/normalizer.py — status_to_report_status, build_summary, extract_error_context, normalize_task_report.
-# @RELATION BINDS_TO -> [normalizer]
+# @RELATION BINDS_TO -> [Services.Normalizer]
 
 from pathlib import Path
 import sys
@@ -31,7 +31,7 @@ def _make_task(**overrides):
 # #endregion helper factories
 
 
-# #region test_status_to_report_status [C:2] [TYPE Function]
+# #region Test.ReportNormalizer.TestStatusToReportStatus [C:2] [TYPE Function]
 # @BRIEF Test status_to_report_status mapping.
 class TestStatusToReportStatus:
     def test_success_maps_to_success(self):
@@ -57,10 +57,10 @@ class TestStatusToReportStatus:
         from src.services.reports.normalizer import status_to_report_status
         from src.models.report import ReportStatus
         assert status_to_report_status("UNKNOWN_STATUS") == ReportStatus.PARTIAL
-# #endregion test_status_to_report_status
+# #endregion Test.ReportNormalizer.TestStatusToReportStatus
 
 
-# #region test_build_summary [C:2] [TYPE Function]
+# #region Test.ReportNormalizer.TestBuildSummary [C:2] [TYPE Function]
 # @BRIEF Test build_summary extracts summary from task result.
 class TestBuildSummary:
     def test_uses_result_summary(self):
@@ -98,10 +98,10 @@ class TestBuildSummary:
         from src.models.report import ReportStatus
         task = _make_task(result={"summary": "", "message": "Actual message"})
         assert build_summary(task, ReportStatus.SUCCESS) == "Actual message"
-# #endregion test_build_summary
+# #endregion Test.ReportNormalizer.TestBuildSummary
 
 
-# #region test_extract_error_context [C:2] [TYPE Function]
+# #region Test.ReportNormalizer.TestExtractErrorContext [C:2] [TYPE Function]
 # @BRIEF Test extract_error_context for failed/partial reports.
 class TestExtractErrorContext:
     def test_returns_none_for_success(self):
@@ -169,10 +169,10 @@ class TestExtractErrorContext:
         ctx = extract_error_context(task, ReportStatus.PARTIAL)
         assert ctx is not None
         assert ctx.message == "Partial failure"
-# #endregion test_extract_error_context
+# #endregion Test.ReportNormalizer.TestExtractErrorContext
 
 
-# #region test_normalize_task_report [C:2] [TYPE Function]
+# #region Test.ReportNormalizer.TestNormalizeTaskReport [C:2] [TYPE Function]
 # @BRIEF Test normalize_task_report produces correct TaskReport.
 class TestNormalizeTaskReport:
     def test_returns_task_report(self):
@@ -252,5 +252,5 @@ class TestNormalizeTaskReport:
         report = normalize_task_report(task)
         assert report.details is not None
         assert report.details["result"] == {"migrated": 5, "errors": 0}
-# #endregion test_normalize_task_report
+# #endregion Test.ReportNormalizer.TestNormalizeTaskReport
 # #endregion Test.ReportNormalizer