feat: Add database migrations and auth system

- Add Alembic for database migrations
- Implement user authentication system
- Update frontend styles and components
- Add new test audio functionality
- Update stream management and UI

alembic/versions/1ab2db0e4b5e_make_username_unique.py

@@ -0,0 +1,86 @@
+"""make username unique
+
+Revision ID: 1ab2db0e4b5e
+Revises: 
+Create Date: 2025-06-27 13:04:10.085253
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+import sqlmodel
+
+# revision identifiers, used by Alembic.
+revision: str = '1ab2db0e4b5e'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # 1. First, add the unique constraint to the username column
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.create_unique_constraint('uq_user_username', ['username'])
+    
+    # 2. Now create the dbsession table with the foreign key
+    op.create_table('dbsession',
+        sa.Column('token', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('user_id', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('ip_address', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('user_agent', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=False),
+        sa.Column('expires_at', sa.DateTime(), nullable=False),
+        sa.Column('is_active', sa.Boolean(), nullable=False),
+        sa.Column('last_activity', sa.DateTime(), nullable=False),
+        sa.ForeignKeyConstraint(['user_id'], ['user.username'], ),
+        sa.PrimaryKeyConstraint('token')
+    )
+    
+    # 3. Drop old tables if they exist
+    if op.get_bind().engine.dialect.has_table(op.get_bind(), 'session'):
+        op.drop_index(op.f('ix_session_token'), table_name='session')
+        op.drop_index(op.f('ix_session_user_id'), table_name='session')
+        op.drop_table('session')
+    
+    if op.get_bind().engine.dialect.has_table(op.get_bind(), 'publicstream'):
+        op.drop_table('publicstream')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # 1. First drop the dbsession table
+    op.drop_table('dbsession')
+    
+    # 2. Recreate the old tables
+    op.create_table('publicstream',
+        sa.Column('uid', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('size', sa.INTEGER(), autoincrement=False, nullable=False),
+        sa.Column('mtime', sa.INTEGER(), autoincrement=False, nullable=False),
+        sa.Column('updated_at', postgresql.TIMESTAMP(), autoincrement=False, nullable=False),
+        sa.PrimaryKeyConstraint('uid', name=op.f('publicstream_pkey'))
+    )
+    
+    op.create_table('session',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('user_id', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('token', sa.TEXT(), autoincrement=False, nullable=True),
+        sa.Column('ip_address', sa.VARCHAR(), autoincrement=False, nullable=False),
+        sa.Column('user_agent', sa.VARCHAR(), autoincrement=False, nullable=True),
+        sa.Column('created_at', postgresql.TIMESTAMP(), autoincrement=False, nullable=False),
+        sa.Column('expires_at', postgresql.TIMESTAMP(), autoincrement=False, nullable=False),
+        sa.Column('last_used_at', postgresql.TIMESTAMP(), autoincrement=False, nullable=False),
+        sa.Column('is_active', sa.BOOLEAN(), autoincrement=False, nullable=False),
+        sa.PrimaryKeyConstraint('id', name=op.f('session_pkey'))
+    )
+    
+    op.create_index(op.f('ix_session_user_id'), 'session', ['user_id'], unique=False)
+    op.create_index(op.f('ix_session_token'), 'session', ['token'], unique=True)
+    
+    # 3. Finally, remove the unique constraint from username
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.drop_constraint('uq_user_username', type_='unique')
+    # ### end Alembic commands ###