Generate Claude settings from Nix so managed commands use the correct home directory, add declarative keybindings for Shift+Enter newline support, and replace the broken inline docs hook with a portable script.
Also stop exporting CLAUDE_CONFIG_DIR so Claude no longer splits managed config between ~/.claude and ~/.config/claude, and fix the status line script shebang for NixOS.
Co-authored-by: Codex <noreply@openai.com>
