fix: resolve type errors across test suite

tests/unit/controllers/SessionController.test.ts

@@ -0,0 +1,58 @@
+import { describe, test, expect } from "bun:test";
+import { SessionController } from "../../../src/controllers/SessionController";
+import { buildMockSession } from "../../setup";
+
+describe("SessionController", () => {
+  // -------------------------------------------------------------------
+  // Constructor
+  // -------------------------------------------------------------------
+  describe("constructor", () => {
+    test("sets all public properties from session data", () => {
+      const data = buildMockSession();
+      const ctrl = new SessionController(data);
+      expect(ctrl.id).toBe("session-1");
+      expect(ctrl.sessionKey).toBe("sk-abc123");
+      expect(ctrl.userId).toBe("user-1");
+      expect(ctrl.expires).toBeInstanceOf(Date);
+      expect(ctrl.refreshedAt).toBeNull();
+      expect(ctrl.invalidatedAt).toBeNull();
+      expect(ctrl.terminated).toBe(false);
+    });
+
+    test("sets custom values from overrides", () => {
+      const refreshDate = new Date("2025-06-01");
+      const ctrl = new SessionController(
+        buildMockSession({ refreshedAt: refreshDate }),
+      );
+      expect(ctrl.refreshedAt).toEqual(refreshDate);
+    });
+  });
+
+  // -------------------------------------------------------------------
+  // invalidate
+  // -------------------------------------------------------------------
+  describe("invalidate()", () => {
+    test("throws when session is already invalidated", async () => {
+      const ctrl = new SessionController(
+        buildMockSession({ invalidatedAt: new Date() }),
+      );
+      await expect(ctrl.invalidate()).rejects.toThrow(
+        "Session has already been invalidated",
+      );
+    });
+  });
+
+  // -------------------------------------------------------------------
+  // generateTokens
+  // -------------------------------------------------------------------
+  describe("generateTokens()", () => {
+    test("throws when tokens have already been generated", async () => {
+      const ctrl = new SessionController(
+        buildMockSession({ refreshTokenGenerated: true }),
+      );
+      await expect(ctrl.generateTokens()).rejects.toThrow(
+        "Tokens have alredy been generated",
+      );
+    });
+  });
+});