Add step type support for work order profiles and steps, update database schema, APIs, and UI components to handle configurable step types.

migrations/008_step_types.sql

@@ -0,0 +1,15 @@
+-- Add step_type and type_config to profile steps and WO steps
+
+IF NOT EXISTS (SELECT 1 FROM sys.columns WHERE object_id = OBJECT_ID('wo_profile_steps') AND name = 'step_type')
+    ALTER TABLE wo_profile_steps ADD step_type NVARCHAR(30) NOT NULL DEFAULT 'work_step';
+    -- 'work_step' | 'photo' | 'inspection' | 'note'
+
+IF NOT EXISTS (SELECT 1 FROM sys.columns WHERE object_id = OBJECT_ID('wo_profile_steps') AND name = 'type_config')
+    ALTER TABLE wo_profile_steps ADD type_config NVARCHAR(MAX) NULL;
+    -- JSON; shape depends on step_type (see CLAUDE.md)
+
+IF NOT EXISTS (SELECT 1 FROM sys.columns WHERE object_id = OBJECT_ID('wo_steps') AND name = 'step_type')
+    ALTER TABLE wo_steps ADD step_type NVARCHAR(30) NOT NULL DEFAULT 'work_step';
+
+IF NOT EXISTS (SELECT 1 FROM sys.columns WHERE object_id = OBJECT_ID('wo_steps') AND name = 'type_config')
+    ALTER TABLE wo_steps ADD type_config NVARCHAR(MAX) NULL;