feat(ui): F8-10 — tables planets / ship-groups / fleets, ship-classes delete guard (#53)

Lights up three previously-stubbed table active views and tightens the
existing one:

  - table-planets: 4 kind checkboxes (own / foreign / uninhabited /
    unknown) + race dropdown that filters the foreign slice; row click
    selects + centres the planet on the map.
  - table-ship-groups: local + foreign groups in one grid, owner
    checkboxes, planet dropdown (destination OR origin), class
    dropdown; on-planet click focuses the destination planet, in-space
    click focuses the ship group itself (camera follows interpolated
    position).
  - table-fleets: own fleets only with the shared planet dropdown;
    on-planet click focuses the planet, in-space click centres the
    camera on the interpolated fleet position without altering the
    selection (no fleet variant in Selected).
  - table-ship-classes: per-row Delete is disabled with a count tooltip
    while at least one local ship group references the class. The
    engine refuses the removal anyway; the UI pre-empts the surface.

Wires the click → map flow through a transient `SelectionStore.focus`
/ `focusPoint` channel that `map.svelte` consumes once on mount —
in-memory only, so an F5 does not re-centre.

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

ui/frontend/src/lib/i18n/locales/en.ts

@@ -335,6 +335,48 @@ const en = {
 	"game.sidebar.order.label.ship_group_join_fleet": "assign group {group} → fleet {fleet}",
 	"game.sidebar.order.label.race_relation": "declare {relation} on {acceptor}",
 	"game.sidebar.order.label.race_vote": "give my votes to {acceptor}",
+	"game.table.planets.title": "planets",
+	"game.table.planets.loading": "loading planets…",
+	"game.table.planets.empty": "no planets in the report",
+	"game.table.planets.column.number": "#",
+	"game.table.planets.column.name": "name",
+	"game.table.planets.column.kind": "kind",
+	"game.table.planets.column.owner": "owner",
+	"game.table.planets.column.size": "size",
+	"game.table.planets.column.resources": "resources",
+	"game.table.planets.column.coordinates": "x,y",
+	"game.table.planets.kind.own": "own",
+	"game.table.planets.kind.foreign": "foreign",
+	"game.table.planets.kind.uninhabited": "uninhabited",
+	"game.table.planets.kind.unknown": "unknown",
+	"game.table.planets.filter.owner": "owner:",
+	"game.table.planets.filter.owner.all": "all races",
+	"game.table.ship_groups.title": "ship groups",
+	"game.table.ship_groups.loading": "loading ship groups…",
+	"game.table.ship_groups.empty": "no ship groups in the report",
+	"game.table.ship_groups.column.owner": "owner",
+	"game.table.ship_groups.column.class": "class",
+	"game.table.ship_groups.column.count": "count",
+	"game.table.ship_groups.column.race": "race",
+	"game.table.ship_groups.column.location": "location",
+	"game.table.ship_groups.column.mass": "mass",
+	"game.table.ship_groups.column.speed": "speed",
+	"game.table.ship_groups.owner.own": "own",
+	"game.table.ship_groups.owner.foreign": "foreign",
+	"game.table.ship_groups.filter.planet": "planet:",
+	"game.table.ship_groups.filter.planet.all": "all planets",
+	"game.table.ship_groups.filter.class": "class:",
+	"game.table.ship_groups.filter.class.all": "all classes",
+	"game.table.fleets.title": "fleets",
+	"game.table.fleets.loading": "loading fleets…",
+	"game.table.fleets.empty": "no fleets in the report",
+	"game.table.fleets.column.name": "name",
+	"game.table.fleets.column.groups": "groups",
+	"game.table.fleets.column.state": "state",
+	"game.table.fleets.column.location": "location",
+	"game.table.fleets.column.speed": "speed",
+	"game.table.fleets.filter.planet": "planet:",
+	"game.table.fleets.filter.planet.all": "all planets",
 	"game.table.ship_classes.title": "ship classes",
 	"game.table.ship_classes.column.name": "name",
 	"game.table.ship_classes.column.drive": "drive",
@@ -347,6 +389,7 @@ const en = {
 	"game.table.ship_classes.filter.placeholder": "filter by name",
 	"game.table.ship_classes.action.new": "+ new ship class",
 	"game.table.ship_classes.action.delete": "delete",
+	"game.table.ship_classes.action.delete.in_use": "in use by {count} ship group(s)",
 	"game.table.ship_classes.loading": "loading ship classes…",
 	"game.designer.ship_class.title.new": "design new ship class",
 	"game.designer.ship_class.title.view": "ship class {name}",

ui/frontend/src/lib/i18n/locales/ru.ts

@@ -336,6 +336,48 @@ const ru: Record<keyof typeof en, string> = {
 	"game.sidebar.order.label.ship_group_join_fleet": "включить группу {group} → флот {fleet}",
 	"game.sidebar.order.label.race_relation": "объявить {relation} расе {acceptor}",
 	"game.sidebar.order.label.race_vote": "отдать голоса расе {acceptor}",
+	"game.table.planets.title": "планеты",
+	"game.table.planets.loading": "загрузка планет…",
+	"game.table.planets.empty": "в отчёте нет планет",
+	"game.table.planets.column.number": "#",
+	"game.table.planets.column.name": "название",
+	"game.table.planets.column.kind": "тип",
+	"game.table.planets.column.owner": "владелец",
+	"game.table.planets.column.size": "размер",
+	"game.table.planets.column.resources": "ресурсы",
+	"game.table.planets.column.coordinates": "x,y",
+	"game.table.planets.kind.own": "свои",
+	"game.table.planets.kind.foreign": "чужие",
+	"game.table.planets.kind.uninhabited": "ничейные",
+	"game.table.planets.kind.unknown": "неизвестные",
+	"game.table.planets.filter.owner": "владелец:",
+	"game.table.planets.filter.owner.all": "все расы",
+	"game.table.ship_groups.title": "группы кораблей",
+	"game.table.ship_groups.loading": "загрузка групп кораблей…",
+	"game.table.ship_groups.empty": "в отчёте нет групп кораблей",
+	"game.table.ship_groups.column.owner": "владелец",
+	"game.table.ship_groups.column.class": "класс",
+	"game.table.ship_groups.column.count": "количество",
+	"game.table.ship_groups.column.race": "раса",
+	"game.table.ship_groups.column.location": "положение",
+	"game.table.ship_groups.column.mass": "масса",
+	"game.table.ship_groups.column.speed": "скорость",
+	"game.table.ship_groups.owner.own": "свои",
+	"game.table.ship_groups.owner.foreign": "чужие",
+	"game.table.ship_groups.filter.planet": "планета:",
+	"game.table.ship_groups.filter.planet.all": "все планеты",
+	"game.table.ship_groups.filter.class": "класс:",
+	"game.table.ship_groups.filter.class.all": "все классы",
+	"game.table.fleets.title": "флоты",
+	"game.table.fleets.loading": "загрузка флотов…",
+	"game.table.fleets.empty": "в отчёте нет флотов",
+	"game.table.fleets.column.name": "название",
+	"game.table.fleets.column.groups": "групп",
+	"game.table.fleets.column.state": "состояние",
+	"game.table.fleets.column.location": "положение",
+	"game.table.fleets.column.speed": "скорость",
+	"game.table.fleets.filter.planet": "планета:",
+	"game.table.fleets.filter.planet.all": "все планеты",
 	"game.table.ship_classes.title": "классы кораблей",
 	"game.table.ship_classes.column.name": "название",
 	"game.table.ship_classes.column.drive": "двигатель",
@@ -348,6 +390,7 @@ const ru: Record<keyof typeof en, string> = {
 	"game.table.ship_classes.filter.placeholder": "фильтр по названию",
 	"game.table.ship_classes.action.new": "+ новый класс корабля",
 	"game.table.ship_classes.action.delete": "удалить",
+	"game.table.ship_classes.action.delete.in_use": "используется в {count} группе(-ах) кораблей",
 	"game.table.ship_classes.loading": "загрузка классов кораблей…",
 	"game.designer.ship_class.title.new": "конструктор нового класса корабля",
 	"game.designer.ship_class.title.view": "класс корабля {name}",