fix: editor split, stop flag in actions, write errors, history on failure, expect panic, string match

- src/main.rs: split VISUAL/EDITOR into prog+args, drop expect panic in reap_timer, propagate write_timer errors, check stop during actions, record history on partial failure, use const for stop msg
- Cargo.toml: add authors/homepage, bump noyalib 0.0.12->0.0.13
- release.yaml: tighten tag glob, fix curl 404 fallback, URI-encode asset name, upgrade upload-artifact v3->v4
- ci.yaml: add cargo cache step
- README.md: sync feature list, fix push to two-step
- RELEASING.md: clarify Cargo.lock regeneration

README.md

@@ -15,7 +15,7 @@ Rust TUI sleep timer for Linux desktop actions.
 - Single Rust binary, independent of Python.
 - Ratatui/Crossterm terminal UI.
 - YAML config at `~/.config/gosleep-timer/config.yaml` or `$XDG_CONFIG_HOME/gosleep-timer/config.yaml`.
-- CLI commands for initialization, preview, and direct timer runs.
+- CLI commands for init, status, validate, edit, preview, run, history, and stats.
 - Time-left display and progress bar.
 - Wrapped command preview for smaller terminals.
 - Linux desktop action support for niri, Hyprland, KDE, playerctl, brightnessctl/light, PipeWire/PulseAudio, systemd, and custom shell commands.
@@ -224,7 +224,8 @@ Release tags must match the package version:
 
 ```bash
 git tag -a vMAJOR.MINOR.PATCH -m "gosleep-timer vMAJOR.MINOR.PATCH"
-git push origin main --tags
+git push origin main
+git push origin vMAJOR.MINOR.PATCH
 ```
 
 ## Releases