feat: add product to opportunity route, local product sequencing

- Add POST /v1/sales/opportunities/:identifier/products with field-level permission gating
- Add CWForecastItemCreate type for forecast item creation
- Store product display order locally (productSequence Int[] on Opportunity)
- Rewrite resequenceProducts to be local-only (no CW PUT, stable IDs)
- Remove reorderProducts CW util (PUT regenerated IDs & broke procurement)
- Update fetchProducts to apply local ordering with CW sequenceNumber fallback
- Add productSequence to OpportunityController.toJson()
- Update API_ROUTES.md, PERMISSIONS.md, PermissionNodes.ts

tests/unit/memberCache.test.ts

@@ -35,7 +35,15 @@ describe("memberCache", () => {
     test("stores and retrieves members", async () => {
       const members = new Collection<string, CWMember>();
       members.set("jroberts", buildTestMember());
-      members.set("asmith", buildTestMember({ id: 20, identifier: "asmith", firstName: "Alice", lastName: "Smith" }));
+      members.set(
+        "asmith",
+        buildTestMember({
+          id: 20,
+          identifier: "asmith",
+          firstName: "Alice",
+          lastName: "Smith",
+        }),
+      );
 
       await setMemberCache(members);
       const cached = await getMemberCache();
@@ -67,7 +75,10 @@ describe("memberCache", () => {
 
     test("falls back to identifier if name parts are empty", async () => {
       const members = new Collection<string, CWMember>();
-      members.set("empty", buildTestMember({ identifier: "empty", firstName: "", lastName: "" }));
+      members.set(
+        "empty",
+        buildTestMember({ identifier: "empty", firstName: "", lastName: "" }),
+      );
       await setMemberCache(members);
 
       expect(resolveMemberName("empty")).toBe("empty");