Fixes #529: fixed stamina abnormal. added fall to death.

Stamina is still WIP.
- Currently stamina consumption is not affected by the use of foods, talents, or the environment.
- Charged attacks do no require stamina yet.
- Will be fixed tomorrow.

src/main/java/emu/grasscutter/server/packet/recv/HandlerEvtDoSkillSuccNotify.java

@@ -0,0 +1,26 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtDoSkillSuccNotifyOuterClass.EvtDoSkillSuccNotify;
+import emu.grasscutter.server.game.GameSession;
+
+@Opcodes(PacketOpcodes.EvtDoSkillSuccNotify)
+public class HandlerEvtDoSkillSuccNotify extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        EvtDoSkillSuccNotify notify = EvtDoSkillSuccNotify.parseFrom(payload);
+        // TODO: Will be used for deducting stamina for charged skills.
+
+        int caster = notify.getCasterId();
+        int skill = notify.getSkillId();
+
+        // Grasscutter.getLogger().warn(caster + "\t" + skill);
+
+//        session.getPlayer().getScene().broadcastPacket(new PacketEvtAvatarStandUpNotify(notify));
+    }
+
+}