3382

Added

• CompanionControllerCapable protocol — PVCoreBridge protocol enabling emulator cores to receive companion controller input events (CompanionInputEvent). Prerequisite for all per-core companion controller integrations (#2702–#2706)
• CompanionButton / CompanionAxisID / CompanionInputEvent — Moved from PVUI to PVCoreBridge so core bridges (Tier 4) can adopt CompanionControllerCapable without depending on the UI layer
• PVEmulatorViewController+CompanionController — OSD entry and session lifecycle: presents CompanionControllerHostView, wires CoreCompanionBridge (state-diff slot delegate → handleCompanionInput), and tears down on dismiss. iOS/macCatalyst only
• Pause menu "Companion" tile — New tile in the tile-based pause menu (iOS/macCatalyst) that opens the companion overlay from the game's pause screen