refactor!: remove Translators questionnaire runtime (runner, trivia UI, BP relay)

[JosephOIbrahim]

What

Removes the legacy Translators cognitive-profiling game from the runtime path:

• bridge_orchestrator.py — the questionnaire runner (892 lines)
• Source/UnrealEngineBridge/UI/** — trivia GameMode, HUD, and 6 Slate widgets
• BridgeComponent.{h,cpp} — thin Blueprint relay; its only consumers were the removed UI, and it called the removed subsystem game-flow methods
• UEBridgeSubsystem StartGame/StopGame/SubmitAnswer state-machine entry points (file-watch/state protocol internals retained for now)

usd_bridge/ is deliberately untouched — parked, not shipped.

Why

First milestone of the UE 5.8 / Epic-MCP-era refocus: UnrealEngine_Bridge sheds the legacy game product line and concentrates on the differentiated agentic layer (perception, spatial reasoning, lighting, mograph, resilience). Curated from the ANVIL decruft-game task (3/3 features passing).

Verification

• UE 5.7 editor-target compile: Result: Succeeded (19 actions, all three modules linked)
• python -m pytest -q: 415 passed
• Cross-tree symbol check: zero StartGame|StopGame|SubmitAnswer occurrences in UEBridgeRuntime
• Zero references to removed classes in Config/ or Content/ (scanned before deletion)

🤖 Generated with Claude Code

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b636a99e-85c0-4ba2-9fc2-17c48948d397

📥 Commits

Reviewing files that changed from the base of the PR and between 3863183 and 6574998.

📒 Files selected for processing (22)

• Plugins/UEBridge/Source/UEBridgeRuntime/Private/UEBridgeSubsystem.cpp
• Plugins/UEBridge/Source/UEBridgeRuntime/Public/BridgeTypes.h
• Plugins/UEBridge/Source/UEBridgeRuntime/Public/UEBridgeSubsystem.h
• Source/UnrealEngineBridge/BridgeComponent.cpp
• Source/UnrealEngineBridge/BridgeComponent.h
• Source/UnrealEngineBridge/UI/UEBridgeGameMode.cpp
• Source/UnrealEngineBridge/UI/UEBridgeGameMode.h
• Source/UnrealEngineBridge/UI/UEBridgeHUD.cpp
• Source/UnrealEngineBridge/UI/UEBridgeHUD.h
• Source/UnrealEngineBridge/UI/W_ConnectingScreen.cpp
• Source/UnrealEngineBridge/UI/W_ConnectingScreen.h
• Source/UnrealEngineBridge/UI/W_FinaleScreen.cpp
• Source/UnrealEngineBridge/UI/W_FinaleScreen.h
• Source/UnrealEngineBridge/UI/W_OptionButton.cpp
• Source/UnrealEngineBridge/UI/W_OptionButton.h
• Source/UnrealEngineBridge/UI/W_ProgressIndicator.cpp
• Source/UnrealEngineBridge/UI/W_ProgressIndicator.h
• Source/UnrealEngineBridge/UI/W_QuestionDisplay.cpp
• Source/UnrealEngineBridge/UI/W_QuestionDisplay.h
• Source/UnrealEngineBridge/UI/W_TitleScreen.cpp
• Source/UnrealEngineBridge/UI/W_TitleScreen.h
• bridge_orchestrator.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch decruft-translators-runtime

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