Eingraben: 2 s move inside a barrier turning solid, 4 s duration

The barrier's model alpha goes to opaque over 1 s, the dwarf is moved,
and it clears over 1 s; orders to him are refused meanwhile (new
game::FilterCreatureOrders). The art's duration in its definition is a
fixed 4 s (was 7 + level), which the barrier, its bonus and the tooltip use.

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

tools/names.txt

@@ -451,3 +451,7 @@
 0x005222c0 cCreature::CastSpell                # thiscall (cast), ret 4: switch on the spell (cast +0x20); +0x08/+0x0c ground point; case 1 Phasenverschiebung, 0x39 Eingraben
 0x00636b60 cWorld::IsPassable                  # thiscall (position), ret 4: world = *ObjectManager
 0x00636eb0 cWorld::CanStand                    # thiscall (creature id, position), ret 8: may correct the position's area
+0x004d24f0 cArtDef::Duration                   # thiscall (index, level): +0x76 + level * +0x78 (i16), at most +0x82 when set
+0x007b8fc0 cParticleSystem_dwarf_shield::cParticleSystem_dwarf_shield  # Eingraben's barrier (type 0x480)
+0x007b91a0 cParticleSystem_dwarf_shield::Update   # vf08 (dt), ret 4; pulse +0x20b8, phase +0x20ac, end +0x20a8
+0x007b92b0 cParticleSystem_dwarf_shield::Draw     # vf04, ret 0x44; model alpha pulse * 128 (__ftol at 0x7b9483)