CREATE: COURIER/机械动力：传令兵

Added

• FPV Drone and Remote Controller.
• Normal, low-light, and thermal observation modes.
• Drone reconnaissance, IFF detection, target marking, and reports.
• Single-item drone payload slot with HE mounting, impact detonation, and weapon safety.
• Observation Camera Module with target tracking and redstone control.
• Stahlhelm Observation Device Manager.
• IFF antenna for physics structures.
• Agent Mandarin fluid and bucket.
• Pump-powered Sprayer with fan and jet modes.
• Agent Mandarin terrain and vegetation effects.
• Lava spraying and ignition effects.

Improved

• FPV flight controls, camera placement, movement interpolation, and signal-loss display.
• Observation camera controls, visuals, tracking, and Sable compatibility.
• Sprayer range, pressure scaling, particle movement, and physics-structure orientation.
• Create-style models, textures, HUDs, and configuration interfaces.

Fixed

• Multiple FPV connection, camera, thermal rendering, and target-marking issues.
• Sprayer particles failing or collapsing into a narrow stream at certain orientations.
• Camera and device references incorrectly appearing offline.