feat(model+ui): F8-05 — race on OtherGroup, real attribution + N×M label

Issue #48 п.32 ("Stationed ship groups") shipped with a fragile race
fallback: when a foreign group sat on a non-`other`-kind planet the
inspector printed a generic "foreign" label, which collapsed the
race dropdown to a single uninformative bucket. The engine FBS
contract did not carry per-group race either, so live games hit the
same gap. This patch carries race authoritatively from the engine
through every layer down to the inspector.

Wire format & engine
- `pkg/schema/fbs/report.fbs`: add `race:string` to `OtherGroup` and
  `LocalGroup` (additive — old clients ignore).
- `pkg/schema/fbs/report/`: regenerated Go bindings.
- `ui/frontend/src/proto/galaxy/fbs/report/`: regenerated TS bindings.
- `pkg/model/report.OtherGroup.Race`: new field; carried through
  `LocalGroup` via the embedded `OtherGroup`.
- `pkg/transcoder/report.go`: encode + decode `race` on both
  `LocalGroup` and `OtherGroup`.
- `game/internal/controller/report.go.otherGroup`: set `v.Race`
  from `c.g.Race[c.RaceIndex(sg.OwnerID)].Name` so every emitted
  group — own or foreign — carries the resolved race name.

Legacy parser
- `tools/local-dev/legacy-report/parser.go`: capture the
  `<Race> Groups` header into `pendingOtherGroup.race`, fill local
  group `Race` from `p.rep.Race`, propagate both into the
  `report.OtherGroup` rows.
- Tests + smoke counts updated; regenerated `KNNTS{039,041}.json`
  fixtures so the synthetic loader carries the new field.

UI
- `ui/frontend/src/api/`: `ReportShipGroupBase.race` field;
  synthetic loader + FBS decoder populate it.
- `ui/frontend/src/lib/inspectors/planet/ship-groups.svelte`: the
  stationed-groups inspector picks race directly from
  `group.race` (own falls back to `localRace`, both finally to the
  `race.unknown` placeholder). The planet-owner / "foreign"
  heuristic is gone.
- Row label changes from "N ships mass M" to a compact
  `<class>` | `<N ×>` | `<mass>` three-column layout: the count
  cell is right-aligned tabular, the mass cell is right-aligned
  monospace + tabular, matching the inspector / calculator number
  conventions. Stale i18n keys removed
  (`ship_groups.row.count`, `.row.mass`, `.race.foreign`).
- All affected unit tests (8 files) carry the new `race` field.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

tools/local-dev/legacy-report/parser_test.go

@@ -844,6 +844,9 @@ func TestParseOtherAndUnidentifiedGroups(t *testing.T) {
 		t.Errorf("a (Class, Number, Destination) = (%q, %d, %d), want (\"Skiff\", 6, 17)",
 			a.Class, a.Number, a.Destination)
 	}
+	if a.Race != "Aliens" {
+		t.Errorf("a Race = %q, want %q (carried over from the section header)", a.Race, "Aliens")
+	}
 	if a.Cargo != "COL" || float64(a.Load) != 2 || float64(a.Mass) != 3 {
 		t.Errorf("a (Cargo, Load, Mass) = (%q, %v, %v), want (\"COL\", 2, 3)",
 			a.Cargo, float64(a.Load), float64(a.Mass))
@@ -860,6 +863,9 @@ func TestParseOtherAndUnidentifiedGroups(t *testing.T) {
 		t.Errorf("b (Class, Number, Destination) = (%q, %d, %d), want (\"Phantom\", 1, 42)",
 			b.Class, b.Number, b.Destination)
 	}
+	if b.Race != "Reds" {
+		t.Errorf("b Race = %q, want %q (separate section, separate owner)", b.Race, "Reds")
+	}
 
 	if got, want := len(rep.UnidentifiedGroup), 2; got != want {
 		t.Fatalf("len(UnidentifiedGroup) = %d, want %d", got, want)