Color.kt: New file with M3 color tokens generated from olive green
seed color #4A6741. Defines primary, secondary, tertiary, error,
surface, and container colors for the dark color scheme.
Theme.kt: Updated DarkColorScheme with all custom color tokens,
changed default to darkTheme=true, status bar now uses surface
color instead of primary for better edge-to-edge appearance.
themes.xml: Changed splash theme parent from Material.Light to
Material dark, added dark background/status/navigation bar colors
matching the Compose surface color (#1A1C18).
Closes#32
c88d10be10