Add prb finding subcommands: create, list, view, update, and delete.
Register the finding command group in the root command and update
the factory to expose FindingService.
Signed-off-by: Bryan Frimin <bryan@getprobo.com>
Introduce the proboctl CLI entry point, root command, version,
completion, iostreams, shared cmdutil helpers (flags, table, JSON,
time formatting), API client with pagination, config management,
goreleaser configuration, and build system integration.
Signed-off-by: Bryan Frimin <bryan@getprobo.com>
