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/production/migrations/versions/20251107_add_reasoning_fields.py

@@ -0,0 +1,27 @@
+"""add reasoning fields to production batches
+
+Revision ID: 20251107_add_reasoning_fields
+Revises: 20251023_0900_add_waste_tracking_fields
+Create Date: 2025-11-07
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+revision = '20251107_add_reasoning_fields'
+down_revision = '20251023_0900_add_waste_tracking_fields'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Add reasoning fields to production_batches table
+    op.add_column('production_batches', sa.Column('reasoning', sa.Text(), nullable=True))
+    op.add_column('production_batches', sa.Column('reasoning_data', sa.JSON(), nullable=True))
+
+
+def downgrade():
+    # Remove reasoning fields from production_batches table
+    op.drop_column('production_batches', 'reasoning_data')
+    op.drop_column('production_batches', 'reasoning')