publishing: deploy the docs to their own Surfer app at docs.inference.coop

The docs now have a dedicated Cloudron app (io.cloudron.surfer,
location docs.inference.coop, id 85b7ce06-e2af-49a4-bd4f-a9c2e692e3ab)
serving /app/data/public. deploy.sh writes there and nowhere else; the
two copies inside the marketing Surfer app (public-docs and
public/docs) have been deleted, so there is one canonical location.

SURFER_APP now defaults to docs.inference.coop and DOCS_DEST to
/app/data/public.

publishing/deploy.sh

@@ -1,17 +1,23 @@
 #!/usr/bin/env bash
-# Publish the built documentation site to the Cloudron Surfer app.
+# Publish the built documentation site to the docs Surfer app.
 #
-# Surfer serves static files from inside its app container. The build is
-# written to two places:
-#   /app/data/public-docs/   the Surfer site bound to docs.inference.coop
-#                            (served at the root of that hostname)
-#   /app/data/public/docs/   a subdirectory of the marketing site, so the docs
-#                            stay viewable at https://inference.coop/docs/
+# The docs have their OWN Cloudron app now:
+#
+#   Cloudron app: docs.inference.coop  (io.cloudron.surfer, id 85b7ce06-e2af-49a4-bd4f-a9c2e692e3ab)
+#   served at:    https://docs.inference.coop/
+#   on disk:      /app/data/public   (Surfer's "Default" site)
+#
+# They used to be a directory inside the marketing Surfer app
+# (inference.coop, id 55f5f904-...), reachable at /app/data/public-docs and
+# /app/data/public/docs. Both of those copies were deleted once this app was
+# serving, so there is exactly one canonical location and nothing to drift.
 #
 # Mechanism (evidence: Cloudron app "Surfer" io.cloudron.surfer 7.4.1, and
-# repos/website/deploy.sh, which already deploys the marketing site this way):
+# repos/website/deploy.sh, which deploys the marketing site the same way):
 # pipe a tar of the build output into the container via `cloudron exec`, which
 # needs only the Cloudron API token — no WebDAV token, SFTP credentials or SSH.
+# The tar is spooled to a file inside the container first; piping it straight
+# into `tar xf -` twice would leave the second extraction with an empty stdin.
 #
 # Usage:
 #   CLOUDRON_TOKEN=... publishing/deploy.sh
@@ -19,7 +25,8 @@
 # Env:
 #   CLOUDRON_TOKEN   (required) Cloudron API token
 #   CLOUDRON_SERVER  default my.inference.coop
-#   SURFER_APP       default inference.coop (the Surfer app's location)
+#   SURFER_APP       default docs.inference.coop (the docs app's location)
+#   DOCS_DEST        default /app/data/public (Surfer's Default site root)
 #   SITE_DIR         default <repo>/.site-build
 
 set -euo pipefail
@@ -27,9 +34,8 @@ set -euo pipefail
 REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 SITE_DIR="${SITE_DIR:-$REPO_DIR/.site-build}"
 SERVER="${CLOUDRON_SERVER:-my.inference.coop}"
-APP="${SURFER_APP:-inference.coop}"
-DEST_SITE="${DOCS_DEST_SITE:-/app/data/public-docs}"   # docs.inference.coop
-DEST_PATH="${DOCS_DEST_PATH:-/app/data/public/docs}"   # inference.coop/docs/
+APP="${SURFER_APP:-docs.inference.coop}"
+DEST="${DOCS_DEST:-/app/data/public}"
 
 CLOUDRON_BIN="${CLOUDRON_BIN:-$(command -v cloudron || true)}"
 if [ -z "$CLOUDRON_BIN" ] && [ -x "$HOME/.local/bin/cloudron" ]; then
@@ -68,17 +74,14 @@ cat > "$SITE_DIR/meta.json" <<EOF
 EOF
 
 echo "Deploying $SITE_DIR (commit $COMMIT_SHORT) -> $SERVER:$APP"
-echo "  $DEST_SITE  (docs.inference.coop)"
-echo "  $DEST_PATH  (inference.coop/docs/)"
+echo "  $DEST  (docs.inference.coop)"
 
 tar cf - -C "$SITE_DIR" . | \
   "$CLOUDRON_BIN" --server "$SERVER" --token "$CLOUDRON_TOKEN" exec --app "$APP" -- \
     sh -c "set -e
            cat > /tmp/docs-site.tar
-           rm -rf '$DEST_SITE' && mkdir -p '$DEST_SITE' && tar xf /tmp/docs-site.tar -C '$DEST_SITE'
-           rm -rf '$DEST_PATH' && mkdir -p '$DEST_PATH' && tar xf /tmp/docs-site.tar -C '$DEST_PATH'
+           rm -rf '$DEST' && mkdir -p '$DEST' && tar xf /tmp/docs-site.tar -C '$DEST'
            rm -f /tmp/docs-site.tar"
 
 echo "Done:"
 echo "  https://docs.inference.coop/"
-echo "  https://inference.coop/docs/"