Add multi-provider event discovery and improve sync UI

scripts/fix-db-user.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+if [[ ! -f "${PROJECT_DIR}/.env" ]]; then
+  echo ".env wurde in ${PROJECT_DIR} nicht gefunden." >&2
+  exit 1
+fi
+
+read_env_value() {
+  local key="$1"
+  local line
+
+  line="$(grep -E "^${key}=" "${PROJECT_DIR}/.env" | tail -n 1 || true)"
+  if [[ -z "${line}" ]]; then
+    echo "Wert ${key} wurde in ${PROJECT_DIR}/.env nicht gefunden." >&2
+    exit 1
+  fi
+
+  printf '%s' "${line#*=}"
+}
+
+DB_NAME="$(read_env_value DB_NAME)"
+DB_USER="$(read_env_value DB_USER)"
+DB_PASSWORD="$(read_env_value DB_PASSWORD)"
+MYSQL_ROOT_PASSWORD="$(read_env_value MYSQL_ROOT_PASSWORD)"
+
+docker compose -f "${PROJECT_DIR}/docker-compose.yml" exec -T db \
+  mariadb -uroot "-p${MYSQL_ROOT_PASSWORD}" <<SQL
+CREATE DATABASE IF NOT EXISTS \`${DB_NAME}\`;
+CREATE USER IF NOT EXISTS '${DB_USER}'@'%' IDENTIFIED BY '${DB_PASSWORD}';
+ALTER USER '${DB_USER}'@'%' IDENTIFIED BY '${DB_PASSWORD}';
+GRANT ALL PRIVILEGES ON \`${DB_NAME}\`.* TO '${DB_USER}'@'%';
+FLUSH PRIVILEGES;
+SQL
+
+echo "MariaDB-App-User '${DB_USER}' wurde fuer '${DB_NAME}' aktualisiert."