feat: store battles and bombings

internal/model/game/game.go

@@ -6,6 +6,7 @@ import (
 	"maps"
 
 	"github.com/google/uuid"
+	"github.com/iliadenisov/galaxy/internal/model/report"
 )
 
 type TechSet map[Tech]float64
@@ -26,7 +27,7 @@ func (ts TechSet) Set(t Tech, v float64) TechSet {
 
 type Game struct {
 	ID         uuid.UUID   `json:"id"`
-	Age        uint        `json:"turn"` // Game's turn number
+	Turn       uint        `json:"turn"`
 	Map        Map         `json:"map"`
 	Race       []Race      `json:"races"`
 	Votes      float64     `json:"votes"`
@@ -34,6 +35,18 @@ type Game struct {
 	Fleets     []Fleet     `json:"fleet,omitempty"`
 }
 
+type GameMeta struct {
+	Battles  []BattleMeta                 `json:"battles,omitempty"`
+	Bombings []report.BombingPlanetReport `json:"bombings,omitempty"`
+}
+
+type BattleMeta struct {
+	Turn        uint        `json:"turn"`
+	Planet      uint        `json:"planet"`
+	BattleID    uuid.UUID   `json:"battle_id"`
+	ObserverIDs []uuid.UUID `json:"observer_ids"`
+}
+
 // TODO: remove if not needed
 func (g Game) RaceVotes(raceID uuid.UUID) float64 {
 	var result float64
@@ -52,3 +65,11 @@ func (g Game) MarshalBinary() (data []byte, err error) {
 func (g *Game) UnmarshalBinary(data []byte) error {
 	return json.Unmarshal(data, g)
 }
+
+func (b GameMeta) MarshalBinary() (data []byte, err error) {
+	return json.Marshal(&b)
+}
+
+func (b *GameMeta) UnmarshalBinary(data []byte) error {
+	return json.Unmarshal(data, b)
+}