release: publish Multi-Debrid Downloader v2.0.15

Synchronize live speed telemetry, preserve known package sizes, refine responsive download status presentation, improve progress contrast and accessibility, simplify account creation, and prepare the verified v2.0.15 desktop release.

tests/download-size.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it } from "vitest";
+import { readFileSync } from "node:fs";
+import { mergeKnownTotalBytes } from "../src/main/download-size";
+
+describe("download size transitions", () => {
+  it("preserves a known metadata size when unrestrict has no replacement", () => {
+    expect(mergeKnownTotalBytes(2_000, null)).toBe(2_000);
+    expect(mergeKnownTotalBytes(2_000, 0)).toBe(2_000);
+  });
+
+  it("accepts a positive replacement size", () => {
+    expect(mergeKnownTotalBytes(2_000, 2_500)).toBe(2_500);
+    expect(mergeKnownTotalBytes(null, 2_500)).toBe(2_500);
+  });
+
+  it("applies the guarded merge to every unrestrict size transition", () => {
+    const source = readFileSync(new URL("../src/main/download-manager.ts", import.meta.url), "utf8");
+
+    expect(source).not.toContain("item.totalBytes = unrestricted.fileSize");
+    expect(source.match(/item\.totalBytes = mergeKnownTotalBytes\(item\.totalBytes, unrestricted\.fileSize\)/g)).toHaveLength(2);
+  });
+});