fix(game): small reconciliation fixes (science, generation, dismantle, report)

A bundle of small rules-vs-engine corrections:

- Science proportions: accept a sum that equals 1 only up to float
  rounding (was an exact != 1 comparison); the rules example is reworded
  so it is unambiguous that proportions are fractions summing to 1.
- Generation: super-big planets get a resource strictly above 0 (minimum
  0.001, was a hard 0.1); the rules table is fixed for big planets (1-10,
  not 0.1-10) and the false "0.1-20 / average 1.5" resource claim removed.
- Dismantle over a neutral planet now unloads the colonists and settles
  it (the planet becomes the race's); over a foreign planet they are
  still lost. The rules clause is clarified for own / neutral / foreign.
- Report: ship-production entries are written at the compacted report
  index (was the planet's map index, which could write past the grown
  slice and panic); the incoming-group "remaining distance" is measured
  from the group's current hyperspace position, not its origin planet
  (matching OtherGroup).
- validator: the cargo-value error now carries the cargo value, not the
  shields value.

Tests added for each behavioural fix; rules.txt updated in the same patch.

pkg/calc/validator.go

@@ -15,7 +15,7 @@ func ValidateShipTypeValues(d float64, a int, w, s, c float64) error {
 		return e.NewShieldsValueError(s)
 	}
 	if !CheckShipTypeValueDWSC(c) {
-		return e.NewCargoValueError(s)
+		return e.NewCargoValueError(c)
 	}
 	if a < 0 {
 		return e.NewShipTypeArmamentValueError(a)