Initial commit: managed .NET 10 AVEVA Historian SDK + reverse-engineering toolkit

Full read-only SDK (src/AVEVA.Historian.Client) implementing the CLAUDE.md required
surface against AVEVA Historian's binary WCF protocol — no native AVEVA runtime
dependency. All operations live-verified against a local Historian:

- ProbeAsync, ReadRawAsync, ReadAggregateAsync, ReadAtTimeAsync, ReadEventsAsync
- BrowseTagNamesAsync, GetTagMetadataAsync (17 native data-type codes mapped)
- GetConnectionStatusAsync, GetStoreForwardStatusAsync, GetSystemParameterAsync
- 108/108 unit + integration tests pass

Includes the reverse-engineering toolkit (tools/AVEVA.Historian.ReverseEngineering)
used to decode the protocol: WCF probes, IL inspection via dnlib, and IL-rewrite
instrumentation (instrument-wcf-{write,read}message etc.) plus the .NET Framework
trace harness (tools/AVEVA.Historian.NativeTraceHarness) for parity testing.

Sanitized handoff evidence under docs/reverse-engineering/. Native AVEVA binaries
(current/, aveva-install-x64/, aveva-install-x86/) are gitignored — fetch separately
from the AVEVA installer.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/Run-AahClientManagedFridaCapture.ps1

@@ -0,0 +1,54 @@
+param(
+    [string]$TagName = "OtOpcUaParityTest_001.Counter",
+    [int]$LookbackMinutes = 1440,
+    [int]$MaxRows = 1,
+    [string]$OutputPath = $null
+)
+
+$ErrorActionPreference = "Stop"
+
+$repoRoot = Split-Path -Parent $PSScriptRoot
+$fridaScript = Join-Path $PSScriptRoot "frida\aahclientmanaged-open-query.js"
+$nativeReadScript = Join-Path $PSScriptRoot "Test-AahClientManagedReadIntegrated.ps1"
+
+if (-not (Test-Path -LiteralPath $fridaScript)) {
+    throw "Missing Frida script at $fridaScript"
+}
+
+if (-not (Test-Path -LiteralPath $nativeReadScript)) {
+    throw "Missing native read script at $nativeReadScript"
+}
+
+if ([string]::IsNullOrWhiteSpace($OutputPath)) {
+    $stamp = Get-Date -Format "yyyyMMdd-HHmmss"
+    $OutputPath = Join-Path $repoRoot "docs\reverse-engineering\frida-aahclientmanaged-integrated-read-$stamp.ndjson"
+}
+
+$outputDirectory = Split-Path -Parent $OutputPath
+New-Item -ItemType Directory -Force -Path $outputDirectory | Out-Null
+
+$powershell = Join-Path $env:WINDIR "System32\WindowsPowerShell\v1.0\powershell.exe"
+if (-not (Test-Path -LiteralPath $powershell)) {
+    $powershell = "powershell.exe"
+}
+
+$fridaArgs = @(
+    "-q",
+    "-f", $powershell,
+    "-l", $fridaScript,
+    "--",
+    "-NoProfile",
+    "-ExecutionPolicy", "Bypass",
+    "-File", $nativeReadScript,
+    "-TagName", $TagName,
+    "-LookbackMinutes", $LookbackMinutes.ToString(),
+    "-MaxRows", $MaxRows.ToString(),
+    "-ConnectionWaitSeconds", "15"
+)
+
+Write-Host "Writing Frida capture to $OutputPath"
+Write-Host "Target tag: $TagName"
+
+& frida @fridaArgs 2>&1 | Tee-Object -FilePath $OutputPath
+
+Write-Host "Capture complete: $OutputPath"