Migration to UV, introducing db_write, mqtt_ingestion, db_migrations, half working prototype.

db_migrations/alembic/versions/20251028_2206_dae12d7f4ddf_initial.py

@@ -0,0 +1,50 @@
+"""Initial
+
+Revision ID: dae12d7f4ddf
+Revises: 
+Create Date: 2025-10-28 22:06:45.637836+00:00
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'dae12d7f4ddf'
+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."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('devices',
+    sa.Column('id', sa.Text(), nullable=False),
+    sa.Column('name', sa.Text(), nullable=False),
+    sa.Column('location', sa.Text(), nullable=True),
+    sa.Column('is_active', sa.Boolean(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_table('telemetry',
+    sa.Column('time', sa.DateTime(timezone=True), nullable=False),
+    sa.Column('device_id', sa.Text(), nullable=False),
+    sa.Column('metric', sa.Text(), nullable=False),
+    sa.Column('value', sa.Float(), nullable=False),
+    sa.Column('unit', sa.Text(), nullable=True),
+    sa.ForeignKeyConstraint(['device_id'], ['devices.id'], ),
+    sa.PrimaryKeyConstraint('time', 'device_id', 'metric')
+    )
+    op.create_index('idx_telemetry_device_time', 'telemetry', ['device_id', 'time'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('idx_telemetry_device_time', table_name='telemetry')
+    op.drop_table('telemetry')
+    op.drop_table('devices')
+    # ### end Alembic commands ###