ci: mount windy-pro's read-only build inputs into dind; allow exactly that path for jobs

Non-secret inputs git-ignored in windy-pro (models, linux-x64 portable
bundle, enter-monitor build) that build-desktop needs. Mounted :ro into
dind; valid_volumes allows only /ci-inputs/windy-pro; refresh-ci-inputs.sh
copies them from the frozen release clone (read-only on the source).
Invariant I-5 narrowed, not dropped: exactly that one path, read-only in
dind, no other service mounts it, still no docker socket (proven to fail
on :rw). Orchestrator-approved (option a). Applied in an idle window.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

deploy/runner/config.yaml

@@ -54,6 +54,9 @@ container:
   privileged: false
   options:
   workdir_parent: /workspace
-  valid_volumes: []      # a job cannot bind-mount anything from the daemon host
+  # A job may bind-mount exactly ONE daemon path: the read-only windy-pro build
+  # inputs (mounted :ro into dind itself). Per-runner, not per-repo (act_runner
+  # limit): any windyadmin repo could mount it; it is non-secret and read-only.
+  valid_volumes: ["/ci-inputs/windy-pro"]
   docker_host: "-"       # do NOT expose the runner's own docker socket to jobs
   force_pull: false

deploy/runner/docker-compose.yml

@@ -49,6 +49,11 @@ services:
       # A fresh volume: Sysbox shifts ownership to its own uid range. The old
       # `dind-storage` is kept untouched for the privileged rollback.
       - dind-storage-sysbox:/var/lib/docker
+      # READ-ONLY, non-secret build inputs for windy-pro's desktop jobs (models,
+      # linux-x64 portable bundle, enter-monitor build), copied from the frozen
+      # release clone by deploy/runner/refresh-ci-inputs.sh. Jobs may mount ONLY
+      # this path (config.yaml valid_volumes). Orchestrator-approved 09-23.
+      - /home/user1-gpu/ci-inputs/windy-pro:/ci-inputs/windy-pro:ro
     # G1.5 — bounded so a fork-bomb workflow cannot starve Grant's interactive
     # session. Veron 1 is his workstation, not a dedicated build box.
     cpus: 12.0            # 12 of 24 cores

deploy/runner/refresh-ci-inputs.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+# Refresh the READ-ONLY CI input cache for windy-pro desktop jobs from the FROZEN
+# release clone on Veron. Reads ~/windy-pro-release only; never writes to it.
+# Run when the release lane says engines / wheels / the portable bundle changed.
+# Linux inputs only: 3 models + requirements-bundle.txt, bundled-portable/linux-x64,
+# native/enter-monitor/build. Result is chmod a-w and mounted :ro into dind.
+set -euo pipefail
+SRC=/home/user1-gpu/windy-pro-release
+DST=/home/user1-gpu/ci-inputs/windy-pro
+models=$(ls "$SRC/extraResources/model" | grep -E '^windy-(nano|lite|core)-ct2$')
+[ "$(wc -w <<<"$models")" = 3 ] || { echo "expected 3 models, got: $models"; exit 1; }
+mkdir -p "$DST/extraResources/model" "$DST/bundled-portable" "$DST/native-enter-monitor-build"
+chmod -R u+w "$DST"
+R="ionice -c3 nice -n 19 rsync -a --delete"
+for m in $models; do $R "$SRC/extraResources/model/$m/" "$DST/extraResources/model/$m/"; done
+$R "$SRC/extraResources/requirements-bundle.txt" "$DST/extraResources/requirements-bundle.txt"
+$R "$SRC/bundled-portable/linux-x64/" "$DST/bundled-portable/linux-x64/"
+$R "$SRC/native/enter-monitor/build/" "$DST/native-enter-monitor-build/"
+date -u +%FT%TZ > "$DST/.refreshed-from-windy-pro-release"
+chmod -R a-w "$DST"
+du -sh --apparent-size "$DST"