Show workspace commits clearly in Changes (#2350)

* feat(commits): distinguish workspace history from base commits

Keep every workspace commit visible while bounding base history to ten
context commits, and make push and base state readable in the commit rail.

* fix(commits): preserve history when base refs disappear

Fall back to recent HEAD history for stale saved bases, and reject truncated
git output instead of presenting an incomplete commit list.

* fix(commits): classify history against the current base

Use the furthest-ahead local or remote base for classification, and re-infer
base history when saved worktree metadata points to a deleted branch.

packages/app/src/i18n/resources/es.ts

@@ -826,7 +826,7 @@ export const es: TranslationResources = {
         deletedFile: "Eliminado",
         commits: {
           title: "Commits",
-          countLabel: "{{count}} commits recientes",
+          countLabel: "{{count}} commits del espacio de trabajo",
           fileDiffEmpty: "No hay cambios para mostrar",
           fileDiffError: "Error al cargar el diff del archivo",
           loading: "Cargando commits…",