feat: teams autostart, llama-cpp-vulkan ignore, snxctl-chromium wrapper

systemd/user/teams-{sii,xsight}.service: autostart both Teams flatpak
profiles on sway-session.target login. KillMode=mixed so SIGTERM hits
only the wrapper process — both instances share the same flatpak app
id, so killing by app id would take down the sibling instance. A 15s
SIGKILL fallback covers the case where Electron tray-hides instead of
quitting. Both units listed in systemd-units/user.txt.

etc/pacman.conf: IgnorePkg = llama-cpp-vulkan. The AUR package rebuilds
on every llama.cpp commit (multi-hour build). Update manually with
`paru -S llama-cpp-vulkan` when intended.

snxctl-chromium wrapper:
- dot_local/share/snx-rs/bin/xdg-open: shim that flatpak-runs
  ungoogled-chromium, used only by snx-rs.
- dot_config/systemd/user/snx-rs.service.d/10-chromium-saml.conf:
  drop-in prepending that dir to the daemon's PATH so snx-rs's
  opener-crate call to xdg-open lands in chromium, without affecting
  xdg-open for any other process.
- dot_local/bin/snxctl-chromium: convenience wrapper that
  daemon-reloads and restarts snx-rs.service if the drop-in isn't yet
  applied, then execs `snxctl connect`.

firefox/user-overrides.js: revert the dom.security.https_only_mode.
upgrade_local and network.lna.local-network-to-localhost.skip-checks
prefs — they didn't actually fix the SAML flow. Replaced with a
comment pointing to the wrapper instead.

1 files changed, 3 insertions, 1 deletions

diff --git a/etc/pacman.conf b/etc/pacman.conf
index f6e7e64..8adc5ae 100644
--- a/etc/pacman.conf
+++ b/etc/pacman.conf
@@ -22,7 +22,9 @@ HoldPkg     = pacman glibc
 Architecture = auto
 
 # Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
-#IgnorePkg   =
+# llama-cpp-vulkan: AUR rebuilds on every llama.cpp commit (1-2 hour build);
+# pin and update manually with `paru -S llama-cpp-vulkan` when intended.
+IgnorePkg   = llama-cpp-vulkan
 #IgnoreGroup =
 
 #NoUpgrade   =