Add model management and database

- use sqlalchemy + alembic + sqlite for db
- extract model data and previews
- endpoints for db interactions
- add tests

alembic_db/versions/2fb22c4fff36_init.py

@@ -0,0 +1,58 @@
+"""init
+
+Revision ID: 2fb22c4fff36
+Revises: 
+Create Date: 2025-03-27 19:00:47.686079
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '2fb22c4fff36'
+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:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('model',
+    sa.Column('type', sa.Text(), nullable=False),
+    sa.Column('path', sa.Text(), nullable=False),
+    sa.Column('title', sa.Text(), nullable=True),
+    sa.Column('description', sa.Text(), nullable=True),
+    sa.Column('architecture', sa.Text(), nullable=True),
+    sa.Column('hash', sa.Text(), nullable=True),
+    sa.Column('source_url', sa.Text(), nullable=True),
+    sa.Column('date_added', sa.DateTime(), server_default=sa.text('(CURRENT_TIMESTAMP)'), nullable=True),
+    sa.PrimaryKeyConstraint('type', 'path')
+    )
+    op.create_table('tag',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('name', sa.Text(), nullable=False),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('name')
+    )
+    op.create_table('model_tag',
+    sa.Column('model_type', sa.Text(), nullable=False),
+    sa.Column('model_path', sa.Text(), nullable=False),
+    sa.Column('tag_id', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['model_type', 'model_path'], ['model.type', 'model.path'], ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('model_type', 'model_path', 'tag_id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('model_tag')
+    op.drop_table('tag')
+    op.drop_table('model')
+    # ### end Alembic commands ###