feat(setup-telega): install the telega Emacs package alongside docker setup

modules/telega-config.el uses `:ensure nil' on the use-package block
(a stale MELPA archive index can 404 and take startup down if
auto-install runs in init).  The trade-off was that a fresh clone
needed a one-time `M-x package-install RET telega' before the
dashboard launcher or `C-; G' would work -- the autoload stub
would fail with `Cannot open load file: telega' instead.

Hit it on this machine just now: dashboard pressed, autoload tried
to load telega.el, no telega.el on the load-path, cryptic error.

Add `ensure_telega_package' to the setup script: probe with
`(package-installed-p 'telega)' under `emacs --batch'; if absent,
refresh MELPA and install via package.el; if that fails, surface
the manual recovery path.  Wire it into `main' after the docker
checks.  Four new bats tests cover the missing-emacs, already-
installed, install-succeeds, and install-fails paths with `emacs'
stubbed at the function level.

0 files changed, 0 insertions, 0 deletions