feat: ops & UX batch — jobs survive restarts, logs/system in the console, media queue, gallery, chat, exact stream tokens

Fifteen changes aimed at the first day of real use:

- Import and media jobs persist to <data>/jobs-*.json and reload on start
  (running ones settle as errors); the Register button no longer vanishes
  because the gateway restarted.
- Docker ships the cortiq binary (built in the builder stage) — local .cmf
  chat models and image/video generation now work in containers, where
  auto-install never could (no cargo in the runtime image). libvulkan1 added
  for optional GPU offload.
- Open admin console on 0.0.0.0 without a token now warns in the log and
  shows a dismissible banner — the VPS footgun is at least labeled.
- "Restart gateway" button in Settings: stops managed model servers, spawns
  a fresh copy (bind retried while the port frees), Docker relies on the
  container restart policy instead.
- Dashboard "System" panel: CPU sparkline + load, RAM (with the gateway's
  own RSS), free disk at the models dir — sampled by sysinfo every 2 s.
- Featured model cards warn "not enough disk" / "may not fit in RAM" before
  the download, from the same live snapshot.
- Log viewer in the sidebar: a 500-line in-memory ring fed by a second
  ANSI-free tracing layer; filter, level, pause, copy.
- Update check: crates.io polled twice a day, the console shows an
  "update available" notice.
- Media generations queue up (with position shown) instead of being
  rejected; progress gained an honest ETA from measured throughput.
- Generation gallery under the image/video tabs: lazy PPM thumbnails,
  click to reopen with seed/steps, delete.
- Playground chat is a real dialogue now: history is resent, bubbles,
  Clear, Cmd/Ctrl+Enter.
- "Connect your app" snippets (curl / Python / JS) on the keys page, with
  the real key inlined right after creation.
- One-click benchmark on the Models page via `cortiq bench --json`.
- Config export now downloads the actual gateway.toml (comments intact);
  import accepts TOML (validated, hot-reloaded) and the legacy JSON.
- Streaming token counts are exact when the model server provides usage
  (cortiq-server patch, shipped separately); the gateway fallback now
  counts content chunks (1/token on cortiq) instead of chars/4.

Wizard's Finish lands on the Playground. 37 new strings in all 7 languages.

web/js/i18n/en.js

@@ -499,4 +499,43 @@ export default {
   "pg.noMediaModels": "No local {kind} model yet. Download one (e.g. from the infosave collection) in Import:",
   "pg.tokSpeed": "Speed",
   "pg.ttft": "First token",
+
+  // ops: logs, system, notices, gallery, chat, snippets, bench
+  "nav.logs": "Logs",
+  "logs.subtitle": "Recent gateway log — what the terminal would show.",
+  "logs.filterPlaceholder": "filter…",
+  "logs.pause": "Pause",
+  "logs.resume": "Resume",
+  "logs.empty": "Nothing matches.",
+  "notice.openAdmin": "The admin console is open without a token and reachable from other machines. Set a token if this box is not private.",
+  "notice.update": "Update available: v{v}.",
+  "dash.sys.title": "System",
+  "dash.sys.cores": "cores",
+  "dash.sys.disk": "Disk (models)",
+  "dash.sys.free": "free",
+  "dash.sys.gateway": "gateway",
+  "fit.disk": "not enough disk",
+  "fit.diskTitle": "The download is larger than the free space on the models disk.",
+  "fit.ram": "may not fit in RAM",
+  "fit.ramTitle": "The model is close to or larger than this machine's RAM — it may not run.",
+  "pg.eta": "left",
+  "pg.min": "min",
+  "pg.queued": "In queue — position {n}. It starts as soon as the current generation finishes.",
+  "pg.gallery": "Recent generations",
+  "pg.galDeleteConfirm": "Delete this generation and its files?",
+  "pg.clearChat": "Clear",
+  "keys.snip.title": "Connect your app",
+  "keys.snip.hint": "Paste one of these into your project — only the API key placeholder needs replacing.",
+  "keys.snip.withKey": "Snippets below include the key you just created.",
+  "keys.snip.openMode": "No API keys are configured — the gateway accepts any key value.",
+  "keys.snip.keyPh": "your API key",
+  "settings.restart": "Restart gateway",
+  "settings.restartConfirm": "Restart the gateway? Requests in flight will be dropped; local model servers restart too.",
+  "settings.restarting": "Restarting — the page reloads when the gateway is back…",
+  "bench.title": "Local model speed",
+  "bench.hint": "Runs `cortiq bench` on this machine — real tok/s, one model at a time.",
+  "bench.run": "Measure",
+  "bench.running": "measuring…",
+  "bench.failed": "failed",
+  "bench.none": "No local .cmf chat models yet.",
 };