Reorganize project structure

- Move development and test files to dev/ directory
- Update .gitignore to exclude development files
- Update paths in configuration files
- Add new audio-player.js for frontend

alembic/versions/f86c93c7a872_add_processed_filename_to_uploadlog.py

@@ -1,30 +0,0 @@
-"""add_processed_filename_to_uploadlog
-
-Revision ID: f86c93c7a872
-Revises: 1ab2db0e4b5e
-Create Date: 2025-06-28 15:56:29.169668
-
-"""
-from typing import Sequence, Union
-
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision: str = 'f86c93c7a872'
-down_revision: Union[str, Sequence[str], None] = '1ab2db0e4b5e'
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    op.add_column('uploadlog', 
-                 sa.Column('processed_filename', sa.String(), nullable=True),
-                 schema=None)
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    op.drop_column('uploadlog', 'processed_filename', schema=None)