chore: add Cloudron PackageTemplate, helper script; add .gitattributes/.editorconfig; refine .gitignore; improve workspace scripts

CloudronPackages/PackageTemplate/start.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+log() { echo "[start] $(date -Is) $*"; }
+abort() { echo "[start] ERROR: $*" >&2; exit 1; }
+
+# Defaults
+: "${APP_PORT:=__HTTP_PORT__}"
+
+log "Starting __APP_TITLE__ on port ${APP_PORT}"
+
+# Example: ensure /app/data exists and is writable
+mkdir -p /app/data
+chown -R cloudron:cloudron /app/data || true
+
+# Example addon integration (uncomment and adapt as needed)
+# if [[ -n "${CLOUDRON_POSTGRESQL_URL:-}" ]]; then
+#   log "Detected PostgreSQL addon"
+#   # Use $CLOUDRON_POSTGRESQL_* env vars
+# fi
+
+# if [[ -n "${CLOUDRON_REDIS_URL:-}" ]]; then
+#   log "Detected Redis addon"
+# fi
+
+# If your app needs config generation, do it here
+# cat > /app/data/config.yaml <<'YAML'
+# key: value
+# YAML
+
+# Example: start a simple HTTP server (placeholder)
+# Replace with your actual app start command
+if command -v python3 >/dev/null 2>&1; then
+  log "Launching placeholder server: python3 -m http.server ${APP_PORT}"
+  exec python3 -m http.server "${APP_PORT}" --bind 0.0.0.0
+else
+  abort "No application command configured. Replace placeholder with your app's start command."
+fi
+