fix(work-orders): dedupe completedDate and gate Completed on technician (SH-188)

Refresh onto current dev and resolve exact-head review blockers:

- Remove duplicate WorkOrderBoardRowApi.completedDate after merge with dev

- Add SH-114 Technician closability gate alongside company/vendor check

- Update wo-closability regressions for missing technician

src/domain/work-orders/types/work-order-board.ts

@@ -162,8 +162,6 @@ export interface WorkOrderBoardRowApi {
   serviceNotes?: string | null;
   extraServices?: string[] | null;
   docStatus?: number | null;
-  /** Work completed date from board/detail contract. */
-  completedDate?: string | null;
   primaryDispatchId?: number | null;
   rowVersion?: string | null;
   dispatchRowVersion?: string | null;

src/domain/work-orders/utils/wo-closability.ts

@@ -10,7 +10,7 @@ export type WoClosabilityInput = {
   dispatcherName: string;
   /** Vendor/company assignment on the board row. */
   company: string;
-  /** Technician name is informational and does not satisfy the vendor requirement. */
+  /** Technician assigned to the work order. */
   tech: string;
   /** Work completed date (API CompletedDate). Empty until set. */
   completedDate: string;
@@ -70,6 +70,9 @@ export function getClosabilityGaps(row: WoClosabilityInput): string[] {
   if (!hasDispatcher(row)) {
     gaps.push("Dispatcher");
   }
+  if (!row.tech.trim()) {
+    gaps.push("Technician");
+  }
   if (!row.company.trim()) {
     gaps.push("Company / vendor");
   }

src/test/domain/work-orders/utils/wo-closability.test.ts

@@ -60,8 +60,8 @@ describe("getClosabilityGaps", () => {
     expect(getClosabilityGaps(makeInput())).toEqual([]);
   });
 
-  it("accepts a company without a technician", () => {
-    expect(getClosabilityGaps(makeInput({ tech: "" }))).toEqual([]);
+  it("blocks Completed when technician is missing", () => {
+    expect(getClosabilityGaps(makeInput({ tech: "" }))).toEqual(["Technician"]);
   });
 
   it("does not let a technician satisfy a missing company requirement", () => {
@@ -86,6 +86,7 @@ describe("getClosabilityGaps", () => {
       ),
     ).toEqual([
       "Dispatcher",
+      "Technician",
       "Company / vendor",
       "Completed Date",
       "WO number",