0.1.0:3 - Show Public Key layout + /api/endpoints service-discovery

- showPublicKey now uses result.group: install command and raw key are each their own one-click copy box; description is brief
- /api/endpoints returns stable shape { vllm, parakeet, magpie } with base_url + model + ready, for other LAN services to consume without hardcoding Spark IPs
- health.py: parakeet/magpie now also expose base_url
- README: documented /api/endpoints shape

README.md

@@ -70,8 +70,22 @@ To sideload onto your Start9: `make install` (needs `host:` set in `~/.startos/c
 - `known-issues.md` — known quirks and workarounds
 - `LICENSE` — MIT
 
+## Service discovery API
+
+Other services on your LAN can hit `GET /api/endpoints` to learn where the current model lives without hardcoding Spark IPs. Stable JSON shape:
+
+```json
+{
+  "vllm":    { "ready": true,  "base_url": "http://<spark-1-ip>:8888/v1", "model": "RedHatAI/Qwen3.6-35B-A3B-NVFP4", "openai_compat": true },
+  "parakeet":{ "ready": true,  "base_url": "http://<spark-2-ip>:8000",   "kind": "stt", "model": "nvidia/parakeet-tdt-0.6b-v3" },
+  "magpie":  { "ready": false, "base_url": "http://<spark-2-ip>:9000",   "kind": "tts" }
+}
+```
+
+`base_url` is filled in whenever Configure Sparks has been completed (even if the underlying service isn't currently up). Pair the URL with `ready: true` to safely route traffic.
+
 ## Status
 
 **v0.1** — local-only, single-cluster, no auth (trusts LAN). Five LLMs in the catalog: qwen3-vl (cluster), gemma4, qwen36, plus two legacy entries. Magpie surfaces red until its container is fixed.
 
-v0.2 backlog (in `runbook.md` / commits): Parakeet/Magpie lifecycle controls, configurable flag tiers in UI, Open WebUI integration, magpie-tts fix.
+v0.2 in progress: service-discovery API, magpie crash fix, Parakeet/Magpie lifecycle, model download driving, spark-vllm-docker update checks, configurable flag tiers.