Major rebranding, i18n, dashboard, shared folders, role capabilities

- Rebrand: new app/agent icons, SKALD.md, warm "paper" CSS palette
  (terracotta accent, --radius tokens, WCAG contrast, reduced-motion),
  updated favicon, tray icon, skaldkonur asset
- i18n: backend crate (i18n.rs, locale column, ui_locale config),
  frontend library (web/lib/i18n.js, I18nMixin, t(key)),
  translation files (web/i18n/), every component wired
- Dashboard: <dashboard-page> replaces old home-page content;
  <app-copilot> becomes the landing page (full/dock layout modes)
- Shared folders: API endpoints (shared_folders.rs), frontend page,
  can_write membership, container mount topology, user_fs routing
- Role capabilities: new db table & authorization seam (data not enums),
  roles.attrs JSON for ui_mode / interface select
- Setup: skald-setup prompts for language + password, sets ui_locale
- General: components migrated to CSS variables, Lit conventions cleanup,
  connectors/catalog/marketplace/approval refactoring

web/components/shared/connector-common.js

@@ -1,3 +1,5 @@
+import { t } from '../../lib/i18n.js';
+
 // Shared vocabulary for the Connectors list and a connector's own page.
 //
 // Both surfaces have to answer "what state is this connector in?" and both draw the
@@ -13,14 +15,25 @@ export function connectorIconUrl(name, size = 'sm') {
 /// How each status reads on a chip. `tone` maps to the `connector-chip--*` accents
 /// in `web/css/connectors.css`.
 export const STATUS_LABEL = {
-  active:      { text: 'active',        tone: 'ok' },
-  pending:     { text: 'needs fix',     tone: 'script' },
-  needs_login: { text: 'needs sign-in', tone: 'script' },
-  enabled:     { text: 'enabled',       tone: 'scope' },
-  off:         { text: 'off',           tone: '' },
-  available:   { text: 'available',     tone: '' },
+  active:      { tone: 'ok' },
+  pending:     { tone: 'script' },
+  needs_login: { tone: 'script' },
+  enabled:     { tone: 'scope' },
+  off:         { tone: '' },
+  available:   { tone: '' },
 };
 
+export function statusText(status) {
+  return {
+    active:      t('connectors.status.active'),
+    pending:     t('connectors.status.needs_fix'),
+    needs_login: t('connectors.status.needs_signin'),
+    enabled:     t('connectors.status.enabled'),
+    off:         t('connectors.status.off'),
+    available:   t('connectors.status.available'),
+  }[status] ?? status;
+}
+
 /// The one place that decides what a connector's state *is*, from whichever runtime
 /// rows exist for it.
 ///