chore: add redeploy script

redeploy.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+#
+# Rebuild + redeploy a SINGLE compose service without touching the rest of the
+# stack.  The whole-stack rebuild you keep hitting happens because `web-app`
+# depends_on slmm + sfm, so `compose up --build web-app` rebuilds the entire
+# dependency tree.  `--no-deps` is the fix: build + recreate ONLY this service.
+#
+# Usage:
+#   ./redeploy.sh              # rebuild + redeploy web-app (prod-style, :8001)
+#   ./redeploy.sh terra-view   # the dev container (:1001, bind-mounted source)
+#   ./redeploy.sh sfm          # any single service
+#
+# Tip: the dev `terra-view` service bind-mounts the source, so for plain
+# code/template edits you usually only need:  docker compose restart terra-view
+# Rebuild it only when requirements.txt or the Dockerfile changed.
+
+set -euo pipefail
+cd "$(dirname "$0")"
+
+SVC="${1:-web-app}"
+
+if ! docker compose config --services | grep -qx "$SVC"; then
+    echo "✗ '$SVC' is not a service in this compose project."
+    echo "  Available: $(docker compose config --services | paste -sd' ')"
+    exit 1
+fi
+
+echo "▶ Rebuilding '$SVC' (dependencies untouched)…"
+docker compose build "$SVC"
+
+echo "▶ Recreating ONLY '$SVC'…"
+docker compose up -d --no-deps "$SVC"
+
+echo
+echo "✓ '$SVC' redeployed. Current state:"
+docker compose ps "$SVC"