Implement production vertical slice foundation

game/domain/dive/hull_snapshot.gd

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+class_name HullSnapshot
+extends RefCounted
+
+var current_integrity: float
+var maximum_integrity: float
+var ratio: float
+var exterior_pressure_bar: float
+var certified_pressure_bar: float
+var critical_pressure_bar: float
+var crush_pressure_bar: float
+
+
+func _init(
+	p_current_integrity: float,
+	p_maximum_integrity: float,
+	p_exterior_pressure_bar: float,
+	p_certified_pressure_bar: float,
+	p_critical_pressure_bar: float,
+	p_crush_pressure_bar: float
+) -> void:
+	current_integrity = p_current_integrity
+	maximum_integrity = p_maximum_integrity
+	ratio = current_integrity / maximum_integrity if maximum_integrity > 0.0 else 0.0
+	exterior_pressure_bar = p_exterior_pressure_bar
+	certified_pressure_bar = p_certified_pressure_bar
+	critical_pressure_bar = p_critical_pressure_bar
+	crush_pressure_bar = p_crush_pressure_bar