- Rename executable public_name and package name from remind_sync to
ical2rem
- Update dune-project with new name, source URI, maintainer, synopsis,
description, and tags
- Add dune-build-info dependency and use Build_info to generate the
version string at build time instead of the %%VERSION%% placeholder
- Add pinned dependencies to ical2rem.opam
- Remove remind_sync.opam
- Bump dune lang version from 3.20 to 3.23
- Accept multiple positional arguments instead of a single required file
- Extract `read_file` helper to separate file reading from parsing
- Collect all valid reminders across files before printing
- Handle per-file errors gracefully without aborting the whole run
