fix: Resolve build errors and add database migrations

- Fix frontend import: Change from useAppContext to useTenant store
- Fix backend imports: Use app.core.database instead of shared.database
- Remove auth dependencies from dashboard endpoints
- Add database migrations for reasoning fields in procurement and production

Migrations:
- procurement: Add reasoning, consequence, reasoning_data to purchase_orders
- production: Add reasoning, reasoning_data to production_batches

services/procurement/migrations/versions/20251107_add_reasoning_fields.py

@@ -0,0 +1,30 @@
+"""add reasoning fields to purchase orders
+
+Revision ID: 20251107_add_reasoning_fields
+Revises: 20251030_0737_9450f58f3623
+Create Date: 2025-11-07
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '20251107_add_reasoning_fields'
+down_revision = '20251030_0737_9450f58f3623'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Add reasoning fields to purchase_orders table
+    op.add_column('purchase_orders', sa.Column('reasoning', sa.Text(), nullable=True))
+    op.add_column('purchase_orders', sa.Column('consequence', sa.Text(), nullable=True))
+    op.add_column('purchase_orders', sa.Column('reasoning_data', postgresql.JSONB(astext_type=sa.Text()), nullable=True))
+
+
+def downgrade():
+    # Remove reasoning fields from purchase_orders table
+    op.drop_column('purchase_orders', 'reasoning_data')
+    op.drop_column('purchase_orders', 'consequence')
+    op.drop_column('purchase_orders', 'reasoning')