Hero wave AI: varying entry points facing the gate, split waves, scout warning with directions and minimap markers

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

lang/en.lang

@@ -323,3 +323,14 @@ info.unconscious = unconscious
 info.carried = being carried to the torture chamber
 info.tortured = being tortured
 info.prison = Prisoners: {0}/{1}
+
+msg.wave_warn_dir = Scouts report: hero wave {0} reaches the gate in 30 seconds! They plan to break in from the {1}.
+msg.wave_warn_two = Scouts report: hero wave {0} reaches the gate in 30 seconds! They split up and break in from the {1} and the {2}.
+dir.n = north
+dir.ne = north-east
+dir.e = east
+dir.se = south-east
+dir.s = south
+dir.sw = south-west
+dir.w = west
+dir.nw = north-west