v0.8.1:0 - delete model weights from disk via card trash icon

Each model card now shows whether its weights are present on disk
(with GB size) or not yet downloaded. When present and the model
isn't currently loaded, a trash icon appears; clicking it pops a
confirmation showing exactly how many GB will be freed and on
which Spark(s), then runs rm -rf on the HF cache directory via SSH.

Cluster-mode models are removed from both Sparks; solo-mode from
Spark 1 only. Safety rails: refuses to delete the currently-loaded
model, refuses during an in-flight swap or download, and the
catalog entry stays intact so it can be re-downloaded anytime.

Backend:
  - new image/app/disk.py: probe_disk + delete_from_disk over SSH
  - GET  /api/models/disk-status — parallel probe across all catalog models
  - DELETE /api/models/{key}/disk — guarded rm -rf, logs to connectivity events

Frontend:
  - on-disk / not-downloaded pills on every card
  - trash icon-btn in card-actions row (hidden when not on disk)
  - confirmation dialog showing per-host bytes-to-free
  - disk-status re-checked every 60s

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package/startos/versions/v0_1_0.ts

@@ -1,10 +1,10 @@
 import { VersionInfo, IMPOSSIBLE } from '@start9labs/start-sdk'
 
 export const v0_1_0 = VersionInfo.of({
-  version: '0.8.0:4',
+  version: '0.8.1:0',
   releaseNotes: {
     en_US:
-      'v0.8: deep health probes. Every 5 minutes, Spark Control sends a tiny synthetic inference request to each service (1 second of silent audio to Parakeet, short text to Magpie, 1-token completion to vLLM). All payloads are generated in-memory and never written to disk. If a probe returns CUDA-error / 5xx signals while the container is still "up" — i.e. the classic Triton-wedge pattern where /health stays green but real inference fails — Spark Control automatically restarts the affected container. Rate-limited to 3 auto-restarts per service per 30 minutes. Each service card now shows the last deep-check timestamp, latency, and an inline "Run now" button. Failures and recoveries are logged into the connectivity history with source=deep-health.',
+      'v0.8.1: model weights can now be deleted from disk directly from the dashboard. Each model card shows whether the weights are present (with on-disk GB size) or not yet downloaded. When present and the model is NOT currently loaded, a small trash icon appears on the card; clicking it pops a confirmation showing how many GB will be freed and on which Spark(s), then runs `rm -rf` on the Hugging Face cache directory via SSH. Cluster-mode models are deleted from both Sparks; solo-mode from Spark 1 only. Safety rails: refuses to delete the currently-loaded model, refuses during an in-flight swap or download, and the catalog entry stays — you can always re-download. Disk status is probed once on dashboard load and re-checked every 60s.',
   },
   migrations: {
     up: async ({ effects }) => {},