The Capabilities/MCP/Hub/Skills UX has settled, so lift every
`// TODO(i18n): literal until the UX settles` hardcoded English string into
the typed i18n catalog and drop the comments.
- New keys under `common` (expand, tryHint), `settings.mcp` (capability
summary, status line, all-servers, auth flow, tool chip titles, log empty
label), and `skills` (provenance, sort/bulk labels, empty states, editor
actions). Full translations in en + zh; ja + zh-hant overrides added.
- Module-level pure fns that had no `t` in scope now take the mcp translations
(`capabilitySummary`/`statusLine`) or an `emptyLabel` prop (`McpLogs`); the
archive toast takes `t`.
- Shared `common.tryHint(term)` dedupes the "Try “…”" search hint across
skills/messaging/cron/artifacts.
No behavior or styling change — string lookups only. Zero TODO(i18n) remain.
Merge the old Skills + Toolsets tabs and pull MCP out of Settings into one
master-detail "Capabilities" hub (Skills / Tools / MCP / Browse Hub).
- Skills: usage-sorted from real per-skill activity, provenance badges
(learned / built-in / hub), edit + archive for learned skills, per-tab bulk
toggle; full-bleed empty states.
- Tools: usage-aware, container-queried rows (no early two-column collapse).
- Settings panels move onto the shared config-record query cache; the deleted
Settings MCP page redirects (/settings?tab=mcp → /skills?tab=mcp).
- Lazy, profile-scoped, TTL-cached usage analytics so the heavy 365-day scan
never blocks the Skills/MCP tabs. Full en/zh strings (ja/zh-hant inherit).
