Project-root-relative paths: paths starting with @/ (or bare @) in
add-input, add-algorithm, and add-parameter-subtask resolve relative to the
current project root. Tab completion understands @/ prefixes.
Selective impress/submit by object names: impress a b operates only on the
named sub-objects; the no-argument form still processes all sub-objects
collectively. submit accepts --runner <name> and positional object names, e.g.
submit --runner cern a b.
Workaround improvements
--reference <algorithm> copies the referenced algorithm into a reference/
subdirectory of the workaround space for side-by-side code inspection.
--skip-input <task> skips mounting the impression of a specified input task.
Filelist manifest: workaround_preshell records the initial algorithm files to
filelist.yaml; workaround_postshell copies listed files back and deletes files
not in the manifest.
LHCb support
New LHCb Analysis Productions (AP) data-list task type (lhcb_ap_datalist):
create-lhcb-ap-list creates the task with example AP configuration;
add-apd-token stores the APD token in .celebi/config.local.json.
Deposit uploads .celebi/config.local.json alongside the impression so Yuki can
generate lbapi_key.json server-side.
datalist and lhcb_ap_datalist tasks validate without requiring an algorithm.
Runner management
update-runner <name> modifies runner settings (URL, token, backend type,
Kerberos, EOS mount point).
runners now displays the full runner configuration.
Fixes & quality
collect: start message, HTTP/connection errors surfaced, warning when nothing is
collected, file counts and per-file skip/fail reasons reported.
Fix arc cache invalidation so add-algorithm/remove-input changes are visible
immediately in ls.
