Salvages #23738 by @LeonSGP43. Wheel installs were missing skills/ and
optional-skills/ because pyproject's [tool.setuptools.packages.find]
only includes Python packages — the skills directories don't have
__init__.py so they were silently dropped from the wheel.
Adds setup.py with data_files spec emitting skills/* and optional-skills/*
under hermes_agent-<v>.data/data/, and a get_bundled_skills_dir() helper
in hermes_constants that discovers the wheel-installed location via
sysconfig before falling back to a source-checkout path. tools/skills_sync
uses the helper so 'hermes update' works for pip-installed users.
Salvages #26431 by @LeonSGP43. Dashboard plugin_api list_diagnostics
was using exact-match (severity == filter), so '--severity warning'
hid 'error' and 'critical' diagnostics. Adds severity_at_or_above()
helper to kanban_diagnostics and uses it in the dashboard endpoint
(CLI already used SEVERITY_ORDER comparison correctly).
Preserve explicit caller overrides, but backfill a sensible default
TERM=xterm-256color when missing or blank in the spawn env. CI often
runs without TERM in the parent process, which makes terminal probes
like 'tput cols' fail before winsize reads.
Salvage of #15278's core code fix only — the test changes conflict
with subsequent test refactors on main that now exercise TIOCGWINSZ
directly instead of via 'tput'.
Co-authored-by: LeonSGP43 <154585401+LeonSGP43@users.noreply.github.com>
LeonSGP43