Align project devices with circuit model

src/db/schema/project-devices.ts

@@ -8,8 +8,16 @@ export const projectDevices = sqliteTable("project_devices", {
     .references(() => projects.id, { onDelete: "cascade" }),
   name: text("name").notNull(),
   displayName: text("display_name").notNull(),
+  phaseType: text("phase_type").notNull().default("single_phase"),
+  connectionKind: text("connection_kind"),
+  costGroup: text("cost_group"),
   category: text("category"),
   quantity: integer("quantity").notNull(),
+  powerPerUnit: real("power_per_unit").notNull().default(0),
+  simultaneityFactor: real("simultaneity_factor").notNull().default(1),
+  cosPhi: real("cos_phi"),
+  remark: text("remark"),
+  // Legacy compatibility fields. Keep these synchronized until the Consumer editor is removed.
   installedPowerPerUnitKw: real("installed_power_per_unit_kw").notNull(),
   demandFactor: real("demand_factor").notNull(),
   voltageV: real("voltage_v"),