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# Description Add **UaLens**, an Avalonia desktop engineering workspace for OPC UA exploration, monitoring, typed editing, administration and guided companion-specification tasks. This is a **new draft PR for `pisrapp` against `master`**, replacing closed, unmerged #4462 without reopening it. The shared prerequisites (#4801, #4802, #4803, #4804 and #4806) have all merged; their implementation is no longer part of this PR's delta. ### Scope - Multi-document workspace with connection, security and identity controls; browsing, subscriptions, events, alarms, history, writes and method calls. - Offline NodeSet2 exploration, typed scalar/array/matrix editing, certificate/GDS and account/role tools. - UaLens companion workflows, repository sample launching and the Aspire AppHost. - PubSub commissioning and capture/replay integration, plus the UaLens-facing OpenUSD viewport and rendered Vision workflows. - UaLens projects, test assemblies, UI assets, guides, solution/dependency entries, desktop test wiring and delivery workflows. Head **`6f46c51fcfef275059bbe77ef39c64c19ebc1053`** is one UaLens-only commit directly above master **`44a8cb277df450162c29313e2f4c862e7c683752`**. The rebase required no conflicts. All **967 UaLens file blobs**, the full-index binary patch, commit-message text and author/co-author attribution are unchanged from the previously published layer. There is **no implementation delta under `src/`**. The original history is retained in recovery refs, including `refs/pr-stack/backups/master20261017/ualens`. No feature was disabled, and no export/path safeguards, native acceptance criteria, test assertions or CI gates were weakened. The four previously recorded blank-line-at-EOF findings in the UaLens dialog files remain unchanged; they are not reported as newly fixed. ### Validation Fresh validation ran on the **exact PR head `6f46c51f`**, using the existing pinned SDK **10.0.401**, normal repository analyzers and physical/non-linked build outputs: ```powershell $d = 'D:\git\UA-.NETStandard_master\TestResults\ualens-528-deep-repro\sdk\dotnet.exe' $b = 'D:\git\UA-.NETStandard_master\TestResults\ua-stack-feedback20261016' $r = 'C:\Users\mschier\.copilot\session-state\abd33a2e-7139-44e1-9912-6e4451102b4e\files\ualens-new-draft20261017-net10' $env:DOTNET_ROOT = Split-Path -Parent $d $env:DOTNET_ROOT_X64 = $env:DOTNET_ROOT $env:DOTNET_CLI_TELEMETRY_OPTOUT = '1' $env:PATH = $env:DOTNET_ROOT + [IO.Path]::PathSeparator + $env:PATH & $d test 'tests\Opc.Ua.Lens.Tests\Opc.Ua.Lens.Tests.csproj' --no-restore --artifacts-path $b -c Release -f net10.0 -p:CustomTestTarget=net10.0 --filter 'TestCategory!=LongRunning&TestCategory!=Stress' --logger 'trx;LogFileName=ualens-new-draft.trx' --results-directory $r --blame-hang --blame-hang-timeout 3m --blame-hang-dump-type none --verbosity minimal # PASS, exit0: Passed: 4524, Failed: 0, Skipped: 0. ``` The saved TRX contains **4524 Passed and 44 explicit/prerequisite NotExecuted records** (4568 total). The repository verdict helper confirms zero failed tests, fixture setup/teardown failures or run-level errors, without toleration. No compiler/analyzer diagnostics were emitted. Logs, TRX and `ualens-new-draft20261017-validation.json` retain this exact-head evidence. **Not run for this new draft:** the full `UA.slnx` net48/net10 matrix, fresh coverage, other desktop TFMs, application-desktop/native workflow suites, NativeAOT, GPU/per-RID/installed-runtime or package-release qualification. UaLens targets .NET8+; no net48 UaLens execution is claimed. Remote CI and CodeQL are not yet claimed green. Historical native diagnostics and successful managed tests are not substitutes for rendered-frame or release acceptance. The previous PR and retained session artifacts preserve the full extraction, review, failed-attempt and diagnostic history. Historical intermittent CI failures were not silently reclassified as root-cause fixes; no old diagnostic grants or producer/release operations were reused for this PR. ## Related Issues _Reference all GitHub issues this PR addresses. If there is no issue yet, open one and link it here._ _If this is a relatively large or complex change, a design must have been discussed in the related tracking issue and signed off (which becomes the Architectural Decision Record (ADR))._ - References #4461, the existing closed UaLens design/qualification tracking issue; no new design approval is implied. - Replaces closed, unmerged #4462 for the remaining UaLens work. - Builds on merged prerequisites #4801, #4802, #4803, #4804 and #4806; this PR does not close them. ## Checklist _Put an `x` in the boxes that apply. You can complete these step by step after opening the PR._ - [ ] I have signed the [CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf) and read the [CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md) doc. - [ ] I have added tests that prove my fix is effective or that my feature works and increased code coverage. - [x] I have added all necessary documentation. - [x] I have verified that my changes do not introduce (new) build or analyzer warnings. - [ ] I ran **all** tests locally using the **UA.slnx** solution against at least .net **framework** and .net **10**, and all passed. - [ ] I fixed **all** failing and flaky tests in the CI pipelines and **all** CodeQL warnings. - [ ] I have addressed **all** PR feedback received. The test/coverage item remains unchecked because fresh coverage was not collected. This draft does not claim CLA confirmation, full-matrix clearance, native qualification or completed review. --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Alexander Köpke <alexander.koepke@microsoft.com> Co-authored-by: Copilot <Copilot@users.noreply.github.com>
