feat: add inventory metadata updates

backend/alembic/versions/0009_inventory_asset_id_history.py

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+"""add inventory Asset ID history
+
+Revision ID: 0009_inventory_asset_id_history
+Revises: 0008_manual_miner_inventory
+Create Date: 2026-07-28
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+
+revision: str = "0009_inventory_asset_id_history"
+down_revision: Union[str, None] = "0008_manual_miner_inventory"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "miner_asset_id_history",
+        sa.Column(
+            "id",
+            postgresql.UUID(as_uuid=True),
+            primary_key=True,
+            server_default=sa.text("gen_random_uuid()"),
+        ),
+        sa.Column(
+            "miner_id",
+            postgresql.UUID(as_uuid=True),
+            sa.ForeignKey("miners.id", ondelete="RESTRICT"),
+            nullable=False,
+        ),
+        sa.Column("old_asset_id", sa.Text(), nullable=True),
+        sa.Column("new_asset_id", sa.Text(), nullable=False),
+        sa.Column(
+            "changed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.Column(
+            "changed_by",
+            postgresql.UUID(as_uuid=True),
+            sa.ForeignKey("users.id", ondelete="RESTRICT"),
+            nullable=False,
+        ),
+        sa.CheckConstraint(
+            "old_asset_id IS NULL OR "
+            "(old_asset_id = trim(old_asset_id) AND old_asset_id <> '')",
+            name="ck_miner_asset_id_history_old_normalized",
+        ),
+        sa.CheckConstraint(
+            "new_asset_id = trim(new_asset_id) AND new_asset_id <> ''",
+            name="ck_miner_asset_id_history_new_normalized",
+        ),
+    )
+    op.create_index(
+        "idx_miner_asset_id_history_miner_changed_at",
+        "miner_asset_id_history",
+        ["miner_id", "changed_at", "id"],
+    )
+    op.create_index(
+        "idx_miner_asset_id_history_changed_by",
+        "miner_asset_id_history",
+        ["changed_by"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        "idx_miner_asset_id_history_changed_by",
+        table_name="miner_asset_id_history",
+    )
+    op.drop_index(
+        "idx_miner_asset_id_history_miner_changed_at",
+        table_name="miner_asset_id_history",
+    )
+    op.drop_table("miner_asset_id_history")