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

internal/repository/migrations/007_profiles.sql

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+-- Work Order Profiles
+
+IF NOT EXISTS (SELECT 1 FROM sys.tables WHERE name = 'wo_profiles')
+BEGIN
+    CREATE TABLE wo_profiles (
+        id                     INT IDENTITY PRIMARY KEY,
+        name                   NVARCHAR(200) NOT NULL,
+        description            NVARCHAR(MAX),
+        category               NVARCHAR(100),
+        default_priority       NVARCHAR(10) NOT NULL DEFAULT 'normal',
+        default_duration_hours INT,
+        default_instructions   NVARCHAR(MAX),
+        active                 BIT NOT NULL DEFAULT 1,
+        created_at             DATETIME2 NOT NULL DEFAULT GETUTCDATE(),
+        updated_at             DATETIME2 NOT NULL DEFAULT GETUTCDATE()
+    );
+END
+
+IF NOT EXISTS (SELECT 1 FROM sys.tables WHERE name = 'wo_profile_steps')
+BEGIN
+    CREATE TABLE wo_profile_steps (
+        id          INT IDENTITY PRIMARY KEY,
+        profile_id  INT NOT NULL REFERENCES wo_profiles(id) ON DELETE CASCADE,
+        step_order  INT NOT NULL,
+        title       NVARCHAR(200) NOT NULL,
+        description NVARCHAR(MAX),
+        required    BIT NOT NULL DEFAULT 1
+    );
+
+    CREATE INDEX ix_profile_steps ON wo_profile_steps (profile_id, step_order);
+END

internal/repository/migrations/008_step_types.sql

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+-- 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;