fix(downloads): a suspended user's queued jobs wait, and a clip too big for the space left says so

A suspension now blocks the user's downloads as quota.resolve already advised: the worker leaves
their queued jobs unclaimed until it is lifted (the confirm says so). A cut clip larger than the
remaining storage is refused with its own message (not "storage is full"), and a clip's quota
refusal reads as a clip's in both languages. The cancel poll compares to JobStatus.RUNNING.

frontend/src/lib/downloadFailure.test.ts

@@ -84,6 +84,22 @@ describe("failTitleKey", () => {
     }
   });
 
+  it("a clip refused for storage says so of a clip, and not that the quota is used up", async () => {
+    // Refused before it is cut (nothing left) or after (the cut is bigger than what is left): one
+    // sentence true of both, worded for a clip and naming the clip-side way out.
+    for (const job_kind of ["clip", "edit"] as const) {
+      const clip = { error_code: "quota_exceeded", error_detail: null, job_kind } as const;
+      for (const lng of ["en", "hu"]) {
+        await i18n.changeLanguage(lng);
+        for (const part of ["short", "body"] as const) {
+          const own = i18n.t(failCopyKeys(clip, part));
+          expect(own).not.toMatch(/^downloads\./);
+          expect(own).not.toBe(i18n.t(`downloads.errors.fail.cat.quota_exceeded.${part}`));
+        }
+      }
+    }
+  });
+
   it("a clip that fails for no known reason says so of a clip, in both languages", async () => {
     // Not "Couldn't download / Something went wrong with this download" — nothing was downloaded.
     const clip = { error_code: "unknown", error_detail: null, job_kind: "edit" } as const;