Relocate shared engine source and expand protocol tests

Move shared IEC 61850 source under ARSVIN.Engine, add deterministic SCL, COMTRADE, PCAP, MMS, diagnostics, and publisher-session tests, fix multi-ASDU smpCnt wrapping, and raise enforced coverage baselines.

Author: masarray

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
 
       - name: Test with whole-engine and protocol-core coverage gates
         shell: pwsh
-        run: .\scripts\test-with-coverage.ps1 -MinimumWholeEngineLineCoverage 5.5 -MinimumLineCoverage 50 -NoRestore
+        run: .\scripts\test-with-coverage.ps1 -MinimumWholeEngineLineCoverage 10.5 -MinimumLineCoverage 60 -NoRestore
 
       - name: Upload test and coverage evidence
         if: always()

CHANGELOG.md

@@ -1,10 +1,10 @@
 [CmdletBinding()]
 param(
     [ValidateRange(0, 100)]
-    [double] $MinimumLineCoverage = 50,
+    [double] $MinimumLineCoverage = 60,
 
     [ValidateRange(0, 100)]
-    [double] $MinimumWholeEngineLineCoverage = 5.5,
+    [double] $MinimumWholeEngineLineCoverage = 10.5,
 
     [switch] $NoRestore
 )
@@ -33,7 +33,7 @@ if ($NoRestore) {
     $arguments += '--no-restore'
 }
 
-# Instrument the complete production engine. CI now protects both the truthful
+# Instrument the complete production engine. CI protects both the truthful
 # whole-engine baseline and the higher protocol-core regression baseline.
 $arguments += @(
     '/p:RestoreLockedMode=true',