Feature: Enable hypridle without locking during Sunshine streams

Sunshine's global_prep_cmd now runs hypr/scripts/SunshineIdle.sh, which
holds a systemd idle inhibitor for the length of a stream (hypridle
respects it) and unlocks hyprlock if the session was already locked.
With that in place hypridle starts at login again.

Sunshine's config (sunshine.conf, apps.json, prep scripts) moves into
the dotfiles; credentials, logs and state stay local and are gitignored.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

dotfiles/.config/hypr/core/startup.lua

@@ -34,7 +34,8 @@ hl.on("hyprland.start", function()
     hl.exec_cmd("wl-paste --type image --watch cliphist store")
 
     -- Starting hypridle to start hyprlock
-    -- hl.exec_cmd("hypridle")
+    -- Sunshine streams hold an idle inhibitor (scripts/SunshineIdle.sh) so this never locks mid-stream
+    hl.exec_cmd("hypridle")
 
     -- Sunshine for streaming media
     hl.exec_cmd("sunshine")

dotfiles/.config/hypr/scripts/SunshineIdle.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# Keeps hypridle from locking the screen while Sunshine is streaming.
+# Hooked up as Sunshine's global_prep_cmd, so it runs for every app:
+#   start -> hold a systemd idle inhibitor (hypridle respects these) and
+#            unlock hyprlock if the session was already locked
+#   stop  -> release the inhibitor so normal idle locking resumes
+
+pidfile="${XDG_RUNTIME_DIR:-/tmp}/sunshine-idle-inhibit.pid"
+
+case "$1" in
+    start)
+        if ! { [ -f "$pidfile" ] && kill -0 "$(cat "$pidfile")" 2>/dev/null; }; then
+            setsid systemd-inhibit --what=idle --who=Sunshine --why="Streaming" \
+                sleep infinity >/dev/null 2>&1 &
+            echo $! > "$pidfile"
+        fi
+        # SIGUSR1 tells hyprlock to unlock
+        pkill -USR1 -x hyprlock
+        ;;
+    stop)
+        [ -f "$pidfile" ] && kill "$(cat "$pidfile")" 2>/dev/null
+        rm -f "$pidfile"
+        ;;
+    *)
+        echo "Usage: $0 start|stop" >&2
+        exit 1
+        ;;
+esac
+exit 0