v0.4.1

Added

• NO_COLOR / FORCE_COLOR support. Color output now follows the no-color.org convention — NO_COLOR (present and non-empty) disables ANSI color, FORCE_COLOR (set and not 0/false) forces it on, otherwise color is used only on a TTY. Error output keys on stderr's TTY-ness. Makes the CLI a better citizen in logs, CI, and pipelines.
• config rejects contradictory flags. trackly config --api-key … --clear-api-key (and the --base-url/--clear-base-url pair) now error instead of silently letting one win.

Changed

• Login uses an OS-assigned ephemeral callback port (listen(0)) with a 1024–65535 guard, replacing the fixed 19847–20846 range and its retry loop — eliminates the rare port-collision failure. Ctrl-C during login now closes the callback server cleanly via a single, properly-removed SIGINT handler.