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/science.go

@@ -2,6 +2,7 @@ package controller
 
 import (
 	"fmt"
+	"math"
 	"slices"
 
 	"galaxy/util"
@@ -36,7 +37,9 @@ func (c *Cache) ScienceCreate(ri int, name string, drive, weapons, shileds, carg
 		return e.NewCargoValueError(cargo)
 	}
 	sum := drive + weapons + shileds + cargo
-	if sum != 1 {
+	// The proportions must add up to one; a small tolerance keeps inputs like
+	// 0.1+0.2+0.3+0.4 (which is 1 only up to float rounding) from being rejected.
+	if math.Abs(sum-1) > 1e-9 {
 		return e.NewScienceSumValuesError("D=%f W=%f S=%f C=%f sum=%f", drive, weapons, shileds, cargo, sum)
 	}
 	c.g.Race[ri].Sciences = append(c.g.Race[ri].Sciences, game.Science{