Refactor: remove desktop/Tauri bundle, add i18n, CI/CD pipeline

- Remove desktop (Tauri) bundle: docs/desktop.md, icons/, tauri.conf.json,
  src/desktop/mod.rs, gen/schemas/
- Remove build.rs (no longer needed)
- Add i18n system (crates/core-api, plugin-mobile-connector, web)
- Refactor config system (src/config.rs, boot_format.rs)
- Add mobile connector features (app, router, device pairing)
- Plugin system improvements (skald-core)
- Update dependencies (Cargo.lock, Cargo.toml)
- CI/CD: Gitea Actions workflows (nightly + release), package.sh,
  verify-version.sh, builds.skaldagent.net config

crates/plugin-mobile-connector/web/common.js

@@ -6,10 +6,23 @@
 // `Plugin::web_pages` contract): they talk only to `/api/plugin/<id>/…` and,
 // for the user directory used by the reassign dropdown, the host `/api/users`
 // (the fragment runs with the logged-in admin's full session privileges).
+//
+// i18n: the plugin ships its own dictionary (`./i18n.js`) and registers it into
+// the host's shared strings via `addStrings` (imported from the app root by the
+// absolute `/lib/i18n.js` specifier — the same module the host app uses, so
+// `t()` and `locale-changed` are shared). `MobileBase` mixes in `I18nMixin` so
+// every fragment re-renders on a language switch. Register once, at module load.
 import { LitElement } from 'lit';
+import { t, addStrings, I18nMixin } from '/lib/i18n.js';
+import STRINGS from './i18n.js';
+
+addStrings(STRINGS);
+
+export { t };
 
 /// JSON fetch that throws the server's error text on non-2xx and tolerates an
-/// empty (204) body.
+/// empty (204) body. The server's error text is already localized (the backend
+/// resolves the caller's locale), so it is safe to surface directly.
 export async function jf(url, opts = {}) {
   const res = await fetch(url, {
     headers: { 'Content-Type': 'application/json', ...(opts.headers || {}) },
@@ -25,27 +38,27 @@ export async function jf(url, opts = {}) {
 }
 
 /// Base for the console fragments: renders into light DOM (so Bootstrap classes
-/// and the app's theme CSS variables apply) and exposes the plugin's API root
-/// from the host-set `plugin-id` attribute.
-export class MobileBase extends LitElement {
+/// and the app's theme CSS variables apply), re-renders on locale change, and
+/// exposes the plugin's API root from the host-set `plugin-id` attribute.
+export class MobileBase extends I18nMixin(LitElement) {
   createRenderRoot() { return this; }
   get api() { return `/api/plugin/${this.getAttribute('plugin-id') || 'mobile-connector'}`; }
 }
 
-/// Human-friendly "time ago" for a Unix-ms timestamp (or "—" when absent).
+/// Human-friendly, localized "time ago" for a Unix-ms timestamp (or "—" when absent).
 export function ago(ms) {
-  if (!ms) return '—';
+  if (!ms) return t('plugin.mobile-connector.time.never');
   const s = Math.max(0, Math.floor((Date.now() - ms) / 1000));
-  if (s < 60) return `${s}s ago`;
+  if (s < 60) return t('plugin.mobile-connector.time.ago_s', { n: s });
   const m = Math.floor(s / 60);
-  if (m < 60) return `${m}m ago`;
+  if (m < 60) return t('plugin.mobile-connector.time.ago_m', { n: m });
   const h = Math.floor(m / 60);
-  if (h < 24) return `${h}h ago`;
-  return `${Math.floor(h / 24)}d ago`;
+  if (h < 24) return t('plugin.mobile-connector.time.ago_h', { n: h });
+  return t('plugin.mobile-connector.time.ago_d', { n: Math.floor(h / 24) });
 }
 
 /// Best-effort device label from the `device_info` JSON a phone sends on hello.
 export function deviceLabel(d) {
   const info = d.device_info || {};
-  return info.name || info.model || info.device || d.platform || 'Unknown device';
+  return info.name || info.model || info.device || d.platform || t('plugin.mobile-connector.devices.unknown');
 }