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.

game/internal/controller/ship_group.go

@@ -177,6 +177,12 @@ func (c *Cache) shipGroupDismantle(ri int, groupIndex uuid.UUID) error {
 		case game.CargoColonist:
 			if p.OwnedBy(c.g.Race[ri].ID) {
 				p = game.UnloadColonists(p, load)
+			} else if !p.Owned() {
+				// Over a neutral planet the colonists settle it: the planet
+				// becomes the dismantling race's and the colonists join its
+				// population. Over a foreign planet they are simply lost.
+				p.Own(c.g.Race[ri].ID)
+				p = game.UnloadColonists(p, load)
 			}
 		case game.CargoMaterial:
 			p.Material = p.Material.Add(load)