Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/

The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.

Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+from logging.config import fileConfig
+
+
+from alembic import context
+from database import engine
+from sqlmodel import SQLModel
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = SQLModel.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine  # Use the SQLModel engine directly
+    # connectable = engine_from_config(
+    #     config.get_section(config.config_ini_section, {}),
+    #     prefix="sqlalchemy.",
+    #     poolclass=pool.NullPool,
+    # )
+
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

alembic/versions/6363b18a22ca_initial.py

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+"""initial
+
+Revision ID: 6363b18a22ca
+Revises: 
+Create Date: 2025-06-22 15:27:23.187594
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = '6363b18a22ca'
+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('buylisting',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('price', sa.Float(), nullable=False),
+    sa.Column('number_of_bedrooms', sa.Integer(), nullable=False),
+    sa.Column('square_meters', sa.Float(), nullable=True),
+    sa.Column('agency', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('council_tax_band', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('longitude', sa.Float(), nullable=False),
+    sa.Column('latitude', sa.Float(), nullable=False),
+    sa.Column('price_history_json', sa.TEXT(), nullable=False),
+    sa.Column('listing_site', sa.Enum('RIGHTMOVE', name='listingsite'), nullable=False),
+    sa.Column('last_seen', sa.DateTime(), nullable=False),
+    sa.Column('photo_thumbnail', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('floorplan_image_paths', sa.JSON(), nullable=False),
+    sa.Column('additional_info', sa.JSON(), nullable=False),
+    sa.Column('routing_info_json', sa.TEXT(), nullable=True),
+    sa.Column('service_charge', sa.Float(), nullable=True),
+    sa.Column('lease_left', sa.Integer(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('rentlisting',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('price', sa.Float(), nullable=False),
+    sa.Column('number_of_bedrooms', sa.Integer(), nullable=False),
+    sa.Column('square_meters', sa.Float(), nullable=True),
+    sa.Column('agency', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('council_tax_band', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('longitude', sa.Float(), nullable=False),
+    sa.Column('latitude', sa.Float(), nullable=False),
+    sa.Column('price_history_json', sa.TEXT(), nullable=False),
+    sa.Column('listing_site', sa.Enum('RIGHTMOVE', name='listingsite'), nullable=False),
+    sa.Column('last_seen', sa.DateTime(), nullable=False),
+    sa.Column('photo_thumbnail', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+    sa.Column('floorplan_image_paths', sa.JSON(), nullable=False),
+    sa.Column('additional_info', sa.JSON(), nullable=False),
+    sa.Column('routing_info_json', sa.TEXT(), nullable=True),
+    sa.Column('available_from', sa.DateTime(), nullable=True),
+    sa.Column('furnish_type', sa.Enum('FURNISHED', 'UNFURNISHED', 'PART_FURNISHED', 'ASK_LANDLORD', 'UNKNOWN', name='furnishtype'), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('user',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('email', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+    sa.Column('password', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_user_email'), 'user', ['email'], unique=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_user_email'), table_name='user')
+    op.drop_table('user')
+    op.drop_table('rentlisting')
+    op.drop_table('buylisting')
+    # ### end Alembic commands ###

alembic/versions/8220f657bae5_add_indices_to_commonly_searched_.py

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+"""add indices to commonly searched numeric columns
+
+Revision ID: 8220f657bae5
+Revises: 6363b18a22ca
+Create Date: 2025-06-30 22:54:11.706618
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision: str = '8220f657bae5'
+down_revision: Union[str, None] = '6363b18a22ca'
+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_index(op.f('ix_buylisting_last_seen'), 'buylisting', ['last_seen'], unique=False)
+    op.create_index(op.f('ix_buylisting_number_of_bedrooms'), 'buylisting', ['number_of_bedrooms'], unique=False)
+    op.create_index(op.f('ix_buylisting_price'), 'buylisting', ['price'], unique=False)
+    op.create_index(op.f('ix_buylisting_square_meters'), 'buylisting', ['square_meters'], unique=False)
+    op.create_index(op.f('ix_rentlisting_last_seen'), 'rentlisting', ['last_seen'], unique=False)
+    op.create_index(op.f('ix_rentlisting_number_of_bedrooms'), 'rentlisting', ['number_of_bedrooms'], unique=False)
+    op.create_index(op.f('ix_rentlisting_price'), 'rentlisting', ['price'], unique=False)
+    op.create_index(op.f('ix_rentlisting_square_meters'), 'rentlisting', ['square_meters'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_rentlisting_square_meters'), table_name='rentlisting')
+    op.drop_index(op.f('ix_rentlisting_price'), table_name='rentlisting')
+    op.drop_index(op.f('ix_rentlisting_number_of_bedrooms'), table_name='rentlisting')
+    op.drop_index(op.f('ix_rentlisting_last_seen'), table_name='rentlisting')
+    op.drop_index(op.f('ix_buylisting_square_meters'), table_name='buylisting')
+    op.drop_index(op.f('ix_buylisting_price'), table_name='buylisting')
+    op.drop_index(op.f('ix_buylisting_number_of_bedrooms'), table_name='buylisting')
+    op.drop_index(op.f('ix_buylisting_last_seen'), table_name='buylisting')
+    # ### end Alembic commands ###

alembic/versions/a1b2c3d4e5f6_add_streaming_indexes.py

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+"""add streaming indexes for query optimization
+
+Revision ID: a1b2c3d4e5f6
+Revises: e5f1bc4e3323
+Create Date: 2026-02-01 12:00:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'a1b2c3d4e5f6'
+down_revision: Union[str, None] = 'e5f1bc4e3323'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Add composite and single-column indexes for streaming query optimization."""
+    # Composite index for main query pattern (bedrooms, price, last_seen filtering)
+    op.create_index(
+        'ix_rentlisting_query_composite',
+        'rentlisting',
+        ['number_of_bedrooms', 'price', 'last_seen'],
+        unique=False
+    )
+    op.create_index(
+        'ix_buylisting_query_composite',
+        'buylisting',
+        ['number_of_bedrooms', 'price', 'last_seen'],
+        unique=False
+    )
+
+    # Missing single-column indexes for frequently filtered columns
+    op.create_index(
+        'ix_rentlisting_furnish_type',
+        'rentlisting',
+        ['furnish_type'],
+        unique=False
+    )
+    op.create_index(
+        'ix_rentlisting_available_from',
+        'rentlisting',
+        ['available_from'],
+        unique=False
+    )
+
+
+def downgrade() -> None:
+    """Remove streaming indexes."""
+    op.drop_index('ix_rentlisting_available_from', table_name='rentlisting')
+    op.drop_index('ix_rentlisting_furnish_type', table_name='rentlisting')
+    op.drop_index('ix_buylisting_query_composite', table_name='buylisting')
+    op.drop_index('ix_rentlisting_query_composite', table_name='rentlisting')

alembic/versions/b4c7d8e9f0a1_add_passkey_auth.py

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+"""add passkey auth
+
+Revision ID: b4c7d8e9f0a1
+Revises: a1b2c3d4e5f6
+Create Date: 2025-07-15 10:00:00.000000
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'b4c7d8e9f0a1'
+down_revision: Union[str, None] = 'a1b2c3d4e5f6'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # Make user.password nullable
+    op.alter_column('user', 'password',
+                    existing_type=sqlmodel.sql.sqltypes.AutoString(),
+                    nullable=True)
+
+    # Add created_at to user table
+    op.add_column('user',
+                  sa.Column('created_at', sa.DateTime(),
+                            nullable=True,
+                            server_default=sa.func.now()))
+
+    # Create passkeycredential table
+    op.create_table('passkeycredential',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('credential_id', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('public_key', sqlmodel.sql.sqltypes.AutoString(), nullable=False),
+        sa.Column('sign_count', sa.Integer(), nullable=False),
+        sa.Column('transports', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True,
+                  server_default=sa.func.now()),
+        sa.ForeignKeyConstraint(['user_id'], ['user.id']),
+        sa.PrimaryKeyConstraint('id'),
+    )
+    op.create_index(op.f('ix_passkeycredential_credential_id'),
+                    'passkeycredential', ['credential_id'], unique=True)
+    op.create_index(op.f('ix_passkeycredential_user_id'),
+                    'passkeycredential', ['user_id'], unique=False)
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    op.drop_index(op.f('ix_passkeycredential_user_id'),
+                  table_name='passkeycredential')
+    op.drop_index(op.f('ix_passkeycredential_credential_id'),
+                  table_name='passkeycredential')
+    op.drop_table('passkeycredential')
+
+    op.drop_column('user', 'created_at')
+
+    op.alter_column('user', 'password',
+                    existing_type=sqlmodel.sql.sqltypes.AutoString(),
+                    nullable=False)

alembic/versions/e5f1bc4e3323_fix_typo_in_logitude_column.py

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+"""fix typo in logitude column
+
+Revision ID: e5f1bc4e3323
+Revises: 8220f657bae5
+Create Date: 2025-10-18 20:31:29.558034
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = 'e5f1bc4e3323'
+down_revision: Union[str, None] = '8220f657bae5'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema - this migration is now a no-op since tables already have correct column name."""
+    # The tables were created with 'longitude' (correct spelling) in the initial migration.
+    # This migration was incorrectly auto-generated and has been fixed to be a no-op.
+    pass
+
+
+def downgrade() -> None:
+    """Downgrade schema - no-op since upgrade is no-op."""
+    pass