Adds a sortable battles list as a new entity under the existing
`view → table` submenu (entity slug `battles`), replacing the
standalone top-level `battle log` shortcut which always opened a
"battle not found" placeholder. The single-battle viewer stays put
and is reached only by clicking a row (or a battle marker on the
map), identical to the existing `section-battles.svelte` flow.
Columns are planet (via the shared `planetLabel` helper) and shots
(the per-battle action count carried by `BattleSummary`), sortable
both ways with shots-desc default. No backend / FBS / map changes:
the wire payload is unchanged. Participants / observers / total
mass require the full BattleReport and were intentionally dropped
to avoid N round trips per menu open.
The top-level `battle log` item is removed from `header/view-menu`
and `sidebar/bottom-tabs` (and their stale comment blocks updated);
the now-orphan `game.view.battle` i18n key is dropped from both
locales.
Ilia Denisov