misc/auto-tempo: Manage Jira Tempo Timesheets worklogs from a text file

AutoTempo manages Jira worklogs through the Tempo Timesheets REST API
using a simple, version-controllable text file.
It can generate a monthly worklog template pre-populated
with working days, expand keyword shortcuts and recurring entries
defined in config.toml, validate daily totals, and apply worklogs
idempotently to Jira. A helper can draft worklogs from local
git commit history.

Targets Tempo Timesheets on Jira Server/Data Center;
authentication uses a Jira personal access token.
The tool is run from a directory containing a config.toml file.

PR: 296427