fix(db): improve database initialization script and docker setup

- Rename init.sh to 00_init.sh for better ordering
- Format docker-compose command for better readability
- Add comprehensive database initialization script with backup restoration
- Implement proper migration handling with schema_migrations table

worklenz-backend/database/00_init.sh

@@ -0,0 +1,88 @@
+#!/bin/bash
+set -e
+
+echo "Starting database initialization..."
+
+SQL_DIR="/docker-entrypoint-initdb.d/sql"
+MIGRATIONS_DIR="/docker-entrypoint-initdb.d/migrations"
+BACKUP_DIR="/docker-entrypoint-initdb.d/pg_backups"
+
+# --------------------------------------------
+# 🗄️ STEP 1: Attempt to restore latest backup
+# --------------------------------------------
+
+if [ -d "$BACKUP_DIR" ]; then
+  LATEST_BACKUP=$(ls -t "$BACKUP_DIR"/*.sql 2>/dev/null | head -n 1)
+else
+  LATEST_BACKUP=""
+fi
+
+if [ -f "$LATEST_BACKUP" ]; then
+  echo "🗄️ Found latest backup: $LATEST_BACKUP"
+  echo "⏳ Restoring from backup..."
+  psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" < "$LATEST_BACKUP"
+  echo "✅ Backup restoration complete. Skipping schema and migrations."
+  exit 0
+else
+  echo "ℹ️ No valid backup found. Proceeding with base schema and migrations."
+fi
+
+# --------------------------------------------
+# 🏗️ STEP 2: Continue with base schema setup
+# --------------------------------------------
+
+# Create migrations table if it doesn't exist
+psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" -c "
+  CREATE TABLE IF NOT EXISTS schema_migrations (
+    version TEXT PRIMARY KEY,
+    applied_at TIMESTAMP DEFAULT now()
+  );
+"
+
+# List of base schema files to execute in order
+BASE_SQL_FILES=(
+  "0_extensions.sql"
+  "1_tables.sql"
+  "indexes.sql"
+  "4_functions.sql"
+  "triggers.sql"
+  "3_views.sql"
+  "2_dml.sql"
+  "5_database_user.sql"
+)
+
+echo "Running base schema SQL files in order..."
+
+for file in "${BASE_SQL_FILES[@]}"; do
+  full_path="$SQL_DIR/$file"
+  if [ -f "$full_path" ]; then
+    echo "Executing $file..."
+    psql -v ON_ERROR_STOP=1 -U "$POSTGRES_USER" -d "$POSTGRES_DB" -f "$full_path"
+  else
+    echo "WARNING: $file not found, skipping."
+  fi
+done
+
+echo "✅ Base schema SQL execution complete."
+
+# --------------------------------------------
+# 🚀 STEP 3: Apply SQL migrations
+# --------------------------------------------
+
+if [ -d "$MIGRATIONS_DIR" ] && compgen -G "$MIGRATIONS_DIR/*.sql" > /dev/null; then
+  echo "Applying migrations..."
+  for f in "$MIGRATIONS_DIR"/*.sql; do
+    version=$(basename "$f")
+    if ! psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" -tAc "SELECT 1 FROM schema_migrations WHERE version = '$version'" | grep -q 1; then
+      echo "Applying migration: $version"
+      psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" -f "$f"
+      psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" -c "INSERT INTO schema_migrations (version) VALUES ('$version');"
+    else
+      echo "Skipping already applied migration: $version"
+    fi
+  done
+else
+  echo "No migration files found or directory is empty, skipping migrations."
+fi
+
+echo "🎉 Database initialization completed successfully."