Fix lifecycle review findings

Advance each serialized web-provider queue when an aborted caller is released while retaining terminal observation of the underlying request. Preserve an accepted pending start across repeated stop requests and dispatch it exactly once after drain. Derive provider retry deadlines from eligible queued items, configured fallback chains, enabled accounts and keys, and matching provider or hoster cooldowns. Add RED-to-GREEN coverage for queue progress, repeated stop behavior, disabled accounts, alternative providers, unrelated hosters, and post-processing-only state.

tests/alldebrid-web.test.ts

@@ -144,9 +144,15 @@ describe("alldebrid-web", () => {
 
   it("releases an aborted caller while the active web request ignores its signal", async () => {
     let rejectRequest!: (error: Error) => void;
-    mockFetch.mockReturnValue(new Promise<Response>((_resolve, reject) => {
-      rejectRequest = reject;
-    }));
+    mockFetch
+      .mockReturnValueOnce(new Promise<Response>((_resolve, reject) => {
+        rejectRequest = reject;
+      }))
+      .mockResolvedValueOnce(new Response(JSON.stringify({
+        link: "https://alldebrid.direct/second.bin",
+        filename: "second.bin",
+        filesize: 333
+      }), { status: 200 }));
     const fallback = new AllDebridWebFallback(() => true);
     const controller = new AbortController();
     const running = fallback.unrestrict("https://rapidgator.net/file/abort-race", controller.signal)
@@ -160,6 +166,17 @@ describe("alldebrid-web", () => {
     ]);
 
     expect(outcome).toContain("aborted:alldebrid-web");
+    const secondOutcome = await Promise.race([
+      fallback.unrestrict("https://rapidgator.net/file/second"),
+      new Promise<"timeout">((resolve) => setTimeout(() => resolve("timeout"), 200))
+    ]);
+    expect(secondOutcome).toEqual({
+      directUrl: "https://alldebrid.direct/second.bin",
+      fileName: "second.bin",
+      fileSize: 333,
+      retriesUsed: 0
+    });
+    expect(mockFetch).toHaveBeenCalledTimes(2);
     rejectRequest(new Error("late alldebrid rejection"));
     await Promise.resolve();
   });