feat(sway): auto-lock on idle and before suspend

- logind: IdleAction=lock, IdleActionSec=5min. systemd emits a lock
  signal at 5min idle (session becomes locked from logind PoV; swayidle
  listens and invokes swaylock).
- swayidle: lock at 5min, blank display at 6min, lock before sleep.
  Closes the gap where lid-close or manual suspend would wake to an
  unlocked session.
- swaylock: add -i (--ignore-empty-password) to ignore accidental Enter.
- meta/wayland: add swayidle.

1 files changed, 57 insertions, 0 deletions

diff --git a/etc/systemd/logind.conf b/etc/systemd/logind.conf
new file mode 100644
index 0000000..37c0b1f
--- /dev/null
+++ b/etc/systemd/logind.conf
@@ -0,0 +1,57 @@
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it under the
+#  terms of the GNU Lesser General Public License as published by the Free
+#  Software Foundation; either version 2.1 of the License, or (at your option)
+#  any later version.
+#
+# Entries in this file show the compile time defaults. Local configuration
+# should be created by either modifying this file (or a copy of it placed in
+# /etc/ if the original file is shipped in /usr/), or by creating "drop-ins" in
+# the /etc/systemd/logind.conf.d/ directory. The latter is generally
+# recommended. Defaults can be restored by simply deleting the main
+# configuration file and all drop-ins located in /etc/.
+#
+# Use 'systemd-analyze cat-config systemd/logind.conf' to display the full config.
+#
+# See logind.conf(5) for details.
+
+[Login]
+#NAutoVTs=6
+#ReserveVT=6
+#KillUserProcesses=no
+#KillOnlyUsers=
+#KillExcludeUsers=root
+#InhibitDelayMaxSec=5
+#UserStopDelaySec=10
+#SleepOperation=suspend-then-hibernate suspend
+#HandlePowerKey=poweroff
+#HandlePowerKeyLongPress=ignore
+#HandleRebootKey=reboot
+#HandleRebootKeyLongPress=poweroff
+#HandleSuspendKey=suspend
+#HandleSuspendKeyLongPress=hibernate
+#HandleHibernateKey=hibernate
+#HandleHibernateKeyLongPress=ignore
+#HandleLidSwitch=suspend
+#HandleLidSwitchExternalPower=suspend
+#HandleLidSwitchDocked=ignore
+#HandleSecureAttentionKey=secure-attention-key
+#PowerKeyIgnoreInhibited=no
+#SuspendKeyIgnoreInhibited=no
+#HibernateKeyIgnoreInhibited=no
+#LidSwitchIgnoreInhibited=yes
+#RebootKeyIgnoreInhibited=no
+#HoldoffTimeoutSec=30s
+#IdleAction=ignore
+IdleAction=lock
+#IdleActionSec=30min
+IdleActionSec=5min
+#RuntimeDirectorySize=10%
+#RuntimeDirectoryInodesMax=
+#RemoveIPC=yes
+#InhibitorsMax=8192
+#SessionsMax=8192
+#StopIdleSessionSec=infinity
+#DesignatedMaintenanceTime=
+#WallMessages=yes