feat(contacts): cari kişiler, hesap ↔ cari transferleri, cari ekstresi ve vade uyarısı, 007 migration

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/shared/contacts.test.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from "vitest";
+import { contactDelta, dueState, isOutgoing } from "./contacts";
+import { addDays } from "./recurrence";
+
+describe("cari", () => {
+  it("yön ve bakiye etkisi", () => {
+    expect(isOutgoing("lend")).toBe(true);
+    expect(isOutgoing("repay")).toBe(true);
+    expect(isOutgoing("borrow")).toBe(false);
+    expect(contactDelta("lend", 100)).toBe(100);
+    expect(contactDelta("repay", 100)).toBe(100);
+    expect(contactDelta("borrow", 100)).toBe(-100);
+    expect(contactDelta("collect", 100)).toBe(-100);
+  });
+
+  it("vade durumu", () => {
+    const today = "2026-11-05";
+    expect(dueState(100, null, 3, today, addDays)).toBe("none");
+    expect(dueState(0, "2026-11-01", 3, today, addDays)).toBe("none");
+    expect(dueState(-100, "2026-11-04", 3, today, addDays)).toBe("overdue");
+    expect(dueState(100, "2026-11-08", 3, today, addDays)).toBe("upcoming");
+    expect(dueState(100, "2026-11-09", 3, today, addDays)).toBe("none");
+    expect(dueState(100, "2026-11-05", 0, today, addDays)).toBe("upcoming");
+  });
+});