chore(views): remove orphaned tool_calls i18n keys, fix inline-variant JSDoc

Review follow-ups (no behavior change):
- Delete tool_calls_one/tool_calls_other from all four locales — the
  metadata chip that used them was removed earlier in this branch.
- Correct the AttributionBadge inline-variant JSDoc: it renders the bare
  name (no "on behalf of" wrapper), matching the implementation and test.
- en events_one grammar: "1 event" not "1 events".

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/views/issues/components/attribution-badge.tsx

@@ -39,8 +39,10 @@ function initialsOf(name: string): string {
  *    source in a hover tooltip. Compact enough for a dense task row. Renders
  *    nothing when there's no accountable member — an avatar-only surface has
  *    nothing meaningful to show for an unattributed run.
- *  - `variant="inline"`: avatar + borderless "on behalf of <name>" text for a
- *    sentence-like identity row (transcript header). Same silence rule.
+ *  - `variant="inline"`: the bare member name (borderless, avatar optional via
+ *    `hideAvatar`) with the source in a tooltip — for a sentence-like identity
+ *    row (transcript header) where the caller supplies the label. Same silence
+ *    rule.
  *
  * Renders nothing when the task has no attribution at all (older backends) —
  * the caller should optional-chain `task.attribution`.

packages/views/locales/en/agents.json

@@ -765,9 +765,7 @@
     "status_failed": "Failed",
     "filter": "Filter",
     "clear_filters": "Clear filters",
-    "tool_calls_one": "{{count}} tool call",
-    "tool_calls_other": "{{count}} tool calls",
-    "events_one": "{{count}} events",
+    "events_one": "{{count}} event",
     "events_other": "{{count}} events",
     "events_filtered": "{{shown}} of {{total}} events",
     "copy_all": "Copy all",

packages/views/locales/ja/agents.json

@@ -647,7 +647,6 @@
     "status_failed": "失敗",
     "filter": "フィルター",
     "clear_filters": "フィルターをクリア",
-    "tool_calls_other": "ツール呼び出し {{count}} 回",
     "events_other": "イベント {{count}} 件",
     "events_filtered": "イベント {{total}} 件中 {{shown}} 件",
     "copy_all": "すべてコピー",

packages/views/locales/ko/agents.json

@@ -655,7 +655,6 @@
     "status_failed": "실패함",
     "filter": "필터",
     "clear_filters": "필터 지우기",
-    "tool_calls_other": "도구 호출 {{count}}회",
     "events_other": "이벤트 {{count}}개",
     "events_filtered": "이벤트 {{total}}개 중 {{shown}}개",
     "copy_all": "전체 복사",

packages/views/locales/zh-Hans/agents.json

@@ -751,7 +751,6 @@
     "status_failed": "失败",
     "filter": "筛选",
     "clear_filters": "清除筛选",
-    "tool_calls_other": "{{count}} 次工具调用",
     "events_other": "{{count}} 个事件",
     "events_filtered": "{{shown}} / {{total}} 个事件",
     "copy_all": "全部复制",