Batch 4-b: verify combat on the port route

The fake server spawns a stray dog outside the village's BANPK safe disc
and answers CG_TARGET/CG_ATTACK with GC_TARGET/GC_DAMAGE_INFO/GC_DEAD.
port.login_flow and python_game_render_test hold the left button on it
(MBF_SMART -> __OnPressActor) until it dies. Adds the host/test helper
PythonBoot::Evaluate / Metin2PythonHost.evaluate.

python_3d_surface: emission is now multiplied by the texture, like
D3D's emissive-then-MODULATE, which removes the grey click-glow quad and
the grey wash on characters. Damage numbers wait on CPythonSystem (4-g).

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

project/python_3d_surface.gd

@@ -286,6 +286,12 @@ func _material(draw: Dictionary) -> StandardMaterial3D:
 	material.emission_enabled = lit and draw["material_emissive"] != Color(0, 0, 0, 0)
 	if material.emission_enabled:
 		material.emission = draw["material_emissive"]
+		# D3D adds the emissive term to the lit vertex colour, and D3DTOP_MODULATE then multiplies that by the
+		# texture; Godot adds emission after the texture, so a black additive glow (click_glow_select copy.jpg)
+		# came out as a grey quad.
+		if material.albedo_texture:
+			material.emission_texture = material.albedo_texture
+			material.emission_operator = BaseMaterial3D.EMISSION_OP_MULTIPLY
 	material.shading_mode = BaseMaterial3D.SHADING_MODE_PER_VERTEX if lit \
 			else BaseMaterial3D.SHADING_MODE_UNSHADED
 	material.specular_mode = BaseMaterial3D.SPECULAR_DISABLED