P3: Automate OBS scene/source smoke tests

[iamfatness]

Problem

Scene/source regressions have repeatedly reached manual testing. We need automation that proves sources, docks, scenes, looks, and package contents load.

Outcomes

• Scripted OBS launch validates plugin load, source creation, dock registration, scene template creation, and package layout.
• Sidecar/obs-websocket smoke tests validate render-plan to OBS actions.
• CI records artifacts/logs on failure.

Acceptance criteria

• Smoke test can run locally before release.
• GitHub Actions build fails on missing plugin/runtime/Qt/SDK dependencies.
• Test artifacts include OBS logs and CoreVideo diagnostics.

[iamfatness]

Progress update: CI now runs ctest after build, so OutputHealth, SpeakerDirector, and existing Sidecar tests execute in GitHub workflows. Verified locally with ctest --test-dir build-vs-release -C Release --output-on-failure: 8/8 passed.

[iamfatness]

Expanded OBS smoke-test coverage in 1835c7f.

• scripts/obs-scene-smoke-test.ps1 can now verify actual CoreVideo OBS input kinds through obs-websocket with -VerifyCoreVideoPlugin.
• The script can audit OBS log markers with -ObsLogPath and optional -ExpectedDockId values after docks are opened.
• Plugin load now emits stable log markers for CoreVideo source registration and dock registration.
• Replaced corrupted dash characters in plugin load/description log strings with ASCII text.
• README documents the new smoke-test modes.

Verification run locally:

• obs-scene-smoke-test.ps1 PowerShell parser check
• cmake --build build-vs-release --config Release --target obs-zoom-plugin --parallel
• ctest --test-dir build-vs-release -C Release --output-on-failure
• git diff --check

[iamfatness]

Progress on OBS smoke coverage:

• scripts/obs-scene-smoke-test.ps1 now verifies the screen-share source and CoreVideo Screen Share nested scene in addition to participant slots.
• Corrected placeholder names in the smoke script to match the actual renderer/OBS contract: CoreVideo Placeholder Slot N and CoreVideo Placeholder Screen Share.
• README smoke-test docs now call out placeholder and screen-share verification.

Validation:

• PowerShell parser check for scripts/obs-scene-smoke-test.ps1
• ctest --test-dir build-vs-release -C Release --output-on-failure passed 8/8

Committed in c039df1.

[iamfatness]

Added CI package identity validation in 999c07c.

What changed:

• build.yml now passes the expected production OAuth public client ID and Meeting SDK public app key into scripts/Test-CoreVideoPackage.ps1 for both full-runtime and validation-only Windows artifacts.
• release-windows.yml does the same for release packages.

Why it matters:

• CI/release packaging now fails if obs-zoom-plugin.dll is built with stale Zoom app identity values or the regular OAuth client ID instead of the production public client ID/public app key.

Validation:

• git diff --check
• cmake --build build-vs-release --config Release --target obs-zoom-plugin --parallel
• ctest --test-dir build-vs-release -C Release --output-on-failure (8/8 passed)