derive threat cost dynamically

bin/app/data/config/modules.toml

@@ -5,7 +5,6 @@ surface_mask = ["OO"]
 materials = [{item = "armor_plate_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 3
-threat_cost = 20.0
 fill_color = "#808080"
 glyph = "A"
 
@@ -20,7 +19,6 @@ surface_mask = ["O"]
 materials = [{item = "sensor_booster_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 2
-threat_cost = 1.0
 fill_color = "#40A0FF"
 glyph = "S"
 
@@ -35,7 +33,6 @@ surface_mask = ["O"]
 materials = [{item = "manuvering_thrusters_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 2
-threat_cost = 1.0
 fill_color = "#40A0FF"
 glyph = "Mt"
 
@@ -51,7 +48,6 @@ surface_mask = ["O"]
 materials = [{item = "afterburner_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 2
-threat_cost = 1.0
 fill_color = "#40A0FF"
 glyph = "Ab"
 
@@ -70,7 +66,6 @@ surface_mask = [
 materials = [{item = "weapon_upgrade_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 4
-threat_cost = 10.0
 fill_color = "#FF4040"
 glyph = "Wu"
 
@@ -88,7 +83,6 @@ surface_mask = [
 materials = [{item = "weapon_primer_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 4
-threat_cost = 10.0
 fill_color = "#FF4040"
 glyph = "Wp"
 
@@ -106,7 +100,6 @@ surface_mask = [
 materials = [{item = "weapon_stabilizer_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 4
-threat_cost = 10.0
 fill_color = "#FF4040"
 glyph = "Ws"
 
@@ -122,7 +115,6 @@ surface_mask = ["O"]
 materials = [{item = "iron_ore", amount = 1}]
 player_production_level = 1
 production_time_seconds = 0.5
-threat_cost = 5.0
 fill_color = "#FF8040"
 glyph = "L"
 
@@ -141,7 +133,6 @@ surface_mask = [
 materials = [{item = "laser_cannon_s_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 0.5
-threat_cost = 30.0
 fill_color = "#FF8040"
 glyph = "L"
 
@@ -158,7 +149,6 @@ surface_mask = ["O"]
 materials = [{item = "salvager_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 2
-threat_cost = 0.0
 fill_color = "#AACC44"
 glyph = "Sv"
 
@@ -175,7 +165,6 @@ surface_mask = ["O"]
 materials = [{item = "repair_tool_module", amount = 1}]
 player_production_level = 1
 production_time_seconds = 2
-threat_cost = 0.0
 fill_color = "#66CCFF"
 glyph = "Rp"