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, 10 insertions, 0 deletions

diff --git a/dot_config/systemd/user/snx-rs.service.d/10-chromium-saml.conf b/dot_config/systemd/user/snx-rs.service.d/10-chromium-saml.conf
new file mode 100644
index 0000000..a5380e3
--- /dev/null
+++ b/dot_config/systemd/user/snx-rs.service.d/10-chromium-saml.conf
@@ -0,0 +1,10 @@
+[Service]
+# Force snx-rs to use the flatpak ungoogled-chromium as its SAML browser.
+# snx-rs calls `xdg-open <url>` via the `opener` crate. Prepending a private
+# PATH dir that contains an `xdg-open` shim makes the daemon find our shim
+# first, without affecting xdg-open for any other user process.
+#
+# Why not the system default browser?  LibreWolf force-upgrades loopback to
+# HTTPS and enables LNA blocking, both of which break snx-rs's plain-HTTP
+# 127.0.0.1:7779 SAML callback. See firefox/user-overrides.js comments.
+Environment=PATH=%h/.local/share/snx-rs/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin