chore(release): v0.2.6 — Settings UX, empty pool by default, CMF port check

- Settings: "?" help tooltips on every option; router key auto-probes the
  connection right after saving (no more hanging "unavailable")
- Local models card reworked into 3 clear steps (install cortiq → add model →
  run locally); removed the hand-entered .cmf path / pool-id fields — models
  are added via the Import tab and the managed server registers them
- Fresh install ships an EMPTY model pool; the local .cmf is auto-registered by
  the managed CMF server, so it needs no static [[models]] entry
- New: port-availability check — GET /admin/api/cmf/port + "Check port" button
  with next-free-port suggestion. bind()+connect() probe so Docker-proxied /
  dual-stack ports (e.g. 8081) are correctly detected as occupied
- /admin/api/cmf now reports the serving model + port; card shows "▶ serving …"
- On-demand runtime install: POST /admin/api/cmf/install

web/js/i18n/en.js

@@ -242,6 +242,38 @@ export default {
   "settings.cmf.threads": "Worker threads",
   "settings.cmf.gpu": "Use GPU (Metal / wgpu)",
   "settings.cmf.speedNote": "Threads parallelise the decode matvecs (~3x faster; 0 = runtime default). GPU offload mainly helps prefill of long prompts — decode is memory-bandwidth-bound, so on Apple Silicon it is roughly neutral.",
+  "settings.cmf.checkPort": "Check port",
+  "settings.cmf.portFree": "port is free",
+  "settings.cmf.portBusy": "port is in use",
+  "settings.cmf.useSuggested": "use {port}",
+  "settings.cmf.serving": "serving {model} on :{port}",
+  "settings.cmf.intro": "Run models locally with the cortiq engine — works even offline or when the router is down.",
+  "settings.cmf.runtime": "cortiq runtime",
+  "settings.cmf.runtimeHelp": "The `cortiq` command-line tool that loads and runs .cmf models. Install it once before starting a local server.",
+  "settings.cmf.install": "Install cortiq",
+  "settings.cmf.reinstall": "Reinstall / update",
+  "settings.cmf.installing": "installing… (compiles, a few minutes)",
+  "settings.cmf.installedOk": "cortiq installed",
+  "settings.cmf.notInstalled": "not installed",
+  "settings.cmf.addModel": "Add a model",
+  "settings.cmf.addModelHelp": "Models are downloaded and converted in the Import tab (HuggingFace → .cmf). Then point the local server at the .cmf file below.",
+  "settings.cmf.importNote": "No model yet? Import one:",
+  "settings.cmf.importLink": "Open Import",
+  "settings.cmf.modelHelp": "Path to the .cmf file to serve (e.g. models/qwen.cmf), produced by the Import tab. Running several models for different tasks? Import them and switch this path.",
+  "settings.cmf.portHelp": "TCP port the local model server listens on (default 8081). Change only if it clashes with another service.",
+  "settings.cmf.threadsHelp": "How many CPU cores to use for generation. More = faster (~3× vs 1 core); 0 lets the runtime decide.",
+  "settings.cmf.gpuHelp": "Offload matrix math to the GPU (Metal/wgpu). On Apple Silicon this mostly speeds up long prompts — decode is memory-bandwidth-bound.",
+  "settings.cmf.localOnlyHelp": "Route every request to the local model, ignoring the router and any cloud providers.",
+  "settings.cmf.manageHelp": "The gateway starts `cortiq serve` for the .cmf below at launch and routes to it. Needs cortiq installed (step 1). Applies on restart.",
+  "settings.cmf.autoInstallHelp": "If cortiq is missing at startup, install it automatically from crates.io.",
+  "settings.cmf.autoUpdateHelp": "On startup, upgrade cortiq to the newest release when a newer one exists.",
+  "settings.router.enabledHelp": "Use the cortiq-router to classify each request (task type + complexity) and pick a model. Off = use the local routing table only.",
+  "settings.router.verifyTlsHelp": "Verify the router's TLS certificate. Turn off only for a self-signed / IP-bound certificate.",
+  "settings.telemetry.metricsHelp": "Expose Prometheus metrics at GET /metrics.",
+  "settings.cortiq.echoHelp": "Add a `cortiq` field (task, model, cost) to each response body. Response headers are always sent.",
+  "settings.stats.enabledHelp": "Record recent requests to power the dashboard and charts.",
+  "settings.cache.enabledHelp": "Semantic cache: return a saved answer when a new prompt is very similar to a past one, skipping the model call. Needs an embedding model in the pool.",
+  "settings.log.bodiesHelp": "Log full request/response message bodies. Off by default for privacy.",
   "settings.router.taxonomy": "Taxonomy id",
   "settings.router.getKey": "Get or top up a router key at",
   "settings.router.secret": "Router key (value)",