feat: unify on single repo-root compose file for dev and prod

.devcontainer/setup.sh

@@ -1,22 +1,30 @@
 #!/bin/bash
+# Dev-only setup (runs via postCreateCommand in the attached `api` container).
+# Production needs none of this: images carry their dependencies and the
+# api entrypoint migrates on every start.
 set -e
 
+REPO=/srv/kirche-einfach
+
 echo "=== Setting up kirche-einfach ==="
 
-# Backend
+# Backend deps into the venv volume (setup runs via sudo; handed to vscode below).
 echo "--- Installing Python dependencies ---"
-cd /workspaces/kirche-einfach/backend
+cd "$REPO/backend"
 uv sync
 
-# Frontend
-echo "--- Installing Node dependencies ---"
-cd /workspaces/kirche-einfach/frontend
-npm install
+# opencode CLI (dev tooling; intentionally not baked into the image).
+if [ ! -x /home/vscode/.opencode/bin/opencode ]; then
+  echo "--- Installing opencode ---"
+  su vscode -c "curl -fsSL https://opencode.ai/install | bash"
+  ln -sf /home/vscode/.opencode/bin/opencode /usr/local/bin/opencode
+fi
 
 # Compose services (langflow, lfx) must be up; fail loudly otherwise.
+# (api/frontend are starting alongside this script.)
 echo "--- Waiting for compose services ---"
-if [ ! -f /workspaces/kirche-einfach/.env ]; then
-  echo "ERROR: /workspaces/kirche-einfach/.env is missing. Copy .env.example to .env and fill in secrets." >&2
+if [ ! -f "$REPO/.env" ]; then
+  echo "ERROR: $REPO/.env is missing. Copy .env.example to .env and fill in secrets." >&2
   exit 1
 fi
 python3 - <<'EOF'
@@ -45,19 +53,17 @@ if pending:
     sys.exit(f"ERROR: compose services not ready: {sorted(pending)}")
 EOF
 
-# Migrate the SQLite schema and reconcile backend/flows into the DB + LFX.
-echo "--- Migrating database ---"
-cd /workspaces/kirche-einfach/backend
-uv run alembic upgrade head
-
+# Reconcile backend/flows into the DB + LFX (schema is migrated by the api
+# entrypoint on every start).
 echo "--- Syncing canonical flows ---"
+cd "$REPO/backend"
 uv run python scripts/sync_flows.py --sync || echo "WARN: flow sync failed (check backend/flows and LFX)"
 
 echo ""
 echo "=== Setup complete ==="
 echo "Forgejo username: $FORGEJO_USERNAME"
 
-# Hand dirs back to vscode (this script runs via sudo; uv/npm create caches as root)
-chown -R vscode:vscode /workspaces/kirche-einfach/backend/.venv \
-                       /workspaces/kirche-einfach/frontend/node_modules \
+# Hand dirs back to vscode (this script runs via sudo; uv creates caches as root)
+chown -R vscode:vscode "$REPO/backend/.venv" \
+                       "$REPO/frontend/node_modules" \
                        /home/vscode/.cache 2>/dev/null || true