diff --git a/backend/alembic/versions/857f5a3874dd_initial_schema.py b/backend/alembic/versions/857f5a3874dd_initial_schema.py
new file mode 100644
index 0000000..7d84303
--- /dev/null
+++ b/backend/alembic/versions/857f5a3874dd_initial_schema.py
@@ -0,0 +1,88 @@
+"""Initial schema
+
+Revision ID: 857f5a3874dd
+Revises: 
+Create Date: 2026-07-06 16:42:37.845634
+"""
+from typing import Sequence, Union
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+revision: str = '857f5a3874dd'
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('models',
+    sa.Column('name', sa.String(length=100), nullable=False),
+    sa.Column('provider', sa.String(length=50), nullable=False),
+    sa.Column('endpoint', sa.String(length=255), nullable=False),
+    sa.Column('api_key', sa.Text(), nullable=False),
+    sa.Column('extra_params', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+    sa.Column('is_enabled', sa.Boolean(), nullable=False),
+    sa.Column('remark', sa.Text(), nullable=True),
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('system_config',
+    sa.Column('key', sa.String(length=50), nullable=False),
+    sa.Column('value', sa.Text(), nullable=True),
+    sa.Column('description', sa.String(length=200), nullable=True),
+    sa.PrimaryKeyConstraint('key')
+    )
+    op.create_table('templates',
+    sa.Column('name', sa.String(length=200), nullable=False),
+    sa.Column('file_path', sa.String(length=500), nullable=False),
+    sa.Column('html_content', sa.Text(), nullable=True),
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('generation_points',
+    sa.Column('template_id', sa.UUID(), nullable=False),
+    sa.Column('position', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+    sa.Column('prompt', sa.Text(), nullable=False),
+    sa.Column('model_id', sa.UUID(), nullable=True),
+    sa.Column('ref_file_path', sa.String(length=500), nullable=True),
+    sa.Column('order', sa.Integer(), nullable=False),
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
+    sa.ForeignKeyConstraint(['model_id'], ['models.id'], ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['template_id'], ['templates.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_generation_points_template_id'), 'generation_points', ['template_id'], unique=False)
+    op.create_table('generation_tasks',
+    sa.Column('template_id', sa.UUID(), nullable=False),
+    sa.Column('status', sa.String(length=20), nullable=False),
+    sa.Column('result_file_path', sa.String(length=500), nullable=True),
+    sa.Column('error_msg', sa.Text(), nullable=True),
+    sa.Column('celery_task_id', sa.String(length=100), nullable=True),
+    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
+    sa.Column('id', sa.UUID(), nullable=False),
+    sa.ForeignKeyConstraint(['template_id'], ['templates.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_generation_tasks_template_id'), 'generation_tasks', ['template_id'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_generation_tasks_template_id'), table_name='generation_tasks')
+    op.drop_table('generation_tasks')
+    op.drop_index(op.f('ix_generation_points_template_id'), table_name='generation_points')
+    op.drop_table('generation_points')
+    op.drop_table('templates')
+    op.drop_table('system_config')
+    op.drop_table('models')
+    # ### end Alembic commands ###
diff --git a/docker-compose.yml b/docker-compose.yml
index 0a3107f..a17752d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,8 +1,6 @@
-version: "3.8"
-
 services:
   postgres:
-    image: postgres:18.3
+    image: postgres:16-alpine
     container_name: docforge-postgres
     environment:
       POSTGRES_USER: ${POSTGRES_USER:-docforge}