add database initialization scripts

scripts/init_database/00_init_user.sh

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+#!/bin/bash
+# Initialize database user and database
+# This script runs before SQL files in docker-entrypoint-initdb.d
+# It must be named with 00_ prefix to run first
+
+set -e
+
+APP_DB_NAME="${APP_DB_NAME:-ai_conversations}"
+APP_DB_USER="${APP_DB_USER:-myapp_user}"
+APP_DB_PASSWORD="${APP_DB_PASSWORD:-secure_password_123}"
+
+echo "Creating database user: $APP_DB_USER"
+# Create user
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    DO \$\$
+    BEGIN
+        IF NOT EXISTS (SELECT FROM pg_catalog.pg_user WHERE usename = '$APP_DB_USER') THEN
+            CREATE USER $APP_DB_USER WITH PASSWORD '$APP_DB_PASSWORD';
+        END IF;
+    END
+    \$\$;
+    ALTER USER $APP_DB_USER CREATEDB;
+EOSQL
+
+echo "Creating database: $APP_DB_NAME"
+# Create database
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    SELECT 'CREATE DATABASE $APP_DB_NAME'
+    WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '$APP_DB_NAME')\gexec
+    GRANT ALL PRIVILEGES ON DATABASE $APP_DB_NAME TO $APP_DB_USER;
+EOSQL
+
+echo "Granting schema privileges"
+# Grant schema privileges
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" <<-EOSQL
+    GRANT ALL ON SCHEMA public TO $APP_DB_USER;
+EOSQL
+
+echo "Database initialization complete!"
+

scripts/init_database/01_run_sql_files.sh

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+#!/bin/bash
+# Run SQL initialization files in the correct database context
+# This script runs after 00_init_user.sh creates the database
+
+set -e
+
+APP_DB_NAME="${APP_DB_NAME:-ai_conversations}"
+
+echo "Running SQL initialization files in database: $APP_DB_NAME"
+
+# Run create_conv_store.sql
+if [ -f /docker-entrypoint-initdb.d/create_conv_store.sql ]; then
+    echo "Executing create_conv_store.sql..."
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" -f /docker-entrypoint-initdb.d/create_conv_store.sql
+fi
+
+# Run create_prompt_config.sql
+if [ -f /docker-entrypoint-initdb.d/create_prompt_config.sql ]; then
+    echo "Executing create_prompt_config.sql..."
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$APP_DB_NAME" -f /docker-entrypoint-initdb.d/create_prompt_config.sql
+fi
+
+echo "SQL initialization files completed!"
+

scripts/init_database/init_all.sh

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+#!/bin/bash
+# Database initialization script
+# This script runs all SQL initialization files in the correct order
+
+set -e
+
+DB_NAME="${POSTGRES_DB:-ai_conversations}"
+DB_USER="${POSTGRES_USER:-myapp_user}"
+DB_PASSWORD="${POSTGRES_PASSWORD:-secure_password_123}"
+DB_HOST="${POSTGRES_HOST:-localhost}"
+DB_PORT="${POSTGRES_PORT:-5432}"
+
+export PGPASSWORD="$DB_PASSWORD"
+
+echo "Initializing database: $DB_NAME on $DB_HOST:$DB_PORT"
+
+# Wait for PostgreSQL to be ready
+until psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres -c '\q' 2>/dev/null; do
+  echo "Waiting for PostgreSQL to be ready..."
+  sleep 2
+done
+
+echo "PostgreSQL is ready!"
+
+# Create database if it doesn't exist
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres <<EOF
+SELECT 'CREATE DATABASE $DB_NAME'
+WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '$DB_NAME')\gexec
+EOF
+
+# Grant privileges
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d postgres <<EOF
+GRANT ALL PRIVILEGES ON DATABASE $DB_NAME TO $DB_USER;
+EOF
+
+# Run initialization scripts in order
+echo "Running database initialization scripts..."
+
+# 1. Create conversation store tables
+echo "Creating conversation store tables..."
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -f /docker-entrypoint-initdb.d/create_conv_store.sql
+
+# 2. Create prompt configuration tables
+echo "Creating prompt configuration tables..."
+psql -h "$DB_HOST" -p "$DB_PORT" -U "$DB_USER" -d "$DB_NAME" -f /docker-entrypoint-initdb.d/create_prompt_config.sql
+
+echo "Database initialization complete!"
+