Orca v1.2.4

Added

• --live / --tui alt-screen views for history and replay.
• Reduced-motion support across TUI spinners and animations.
• OSC 11 background detection for automatic light/dark theme wiring.
• Branded first-run celebration and improved onboarding moments.
• Pi slash commands /orca-start and /orca-stop for session-level protection control.

Changed

• --no-rich and ORCA_NO_RICH=1 now gate color without changing machine-readable output.
• --tui + --json is rejected at preflight to prevent mixed output modes.

Fixed

• CLI self-import support in the build.
• Replay/history live help and banner rejection edge cases.
• Phase 6 public contract freeze: exact bytes preserved for JSON, robot, export, and MCP proxy paths.