fix(autoobserve): never number a service label onto another service's real name

Services still identical after every naming tier get #n. The number now skips any label another service already shows, so a service really named like a numbered label keeps it and every row stays distinct.

web/src/components/autoobserve/live/liveAdapter.spec.ts

@@ -329,4 +329,15 @@ describe("toCoverageSource service names", () => {
       "web",
     ]);
   });
+
+  it("never numbers a label onto the name another service really has", () => {
+    const labels = names([
+      svc("api", "prod"),
+      svc("api", "prod", "other"),
+      svc("api (prod/ns)", "elsewhere"),
+      svc("api (prod/ns) #1", "elsewhere"),
+    ]);
+    expect(new Set(labels).size).toBe(4);
+    expect(labels[3]).toBe("api (prod/ns) #1");
+  });
 });

web/src/components/autoobserve/live/liveAdapter.ts

@@ -293,9 +293,16 @@ const uniqueNames = (rows: AutoObserveCoverageRow[]) => {
   }
   const labels = rows.map((_, i) => labelOf(i));
   const groups = groupBy(labels);
-  return labels.map((label, i) => {
-    const group = groups.get(label) ?? [i];
-    return group.length > 1 ? `${label} #${group.indexOf(i) + 1}` : label;
+  const taken = new Set(labels);
+  const lastNumber = new Map<string, number>();
+  return labels.map((label) => {
+    if ((groups.get(label)?.length ?? 1) < 2) return label;
+    let n = (lastNumber.get(label) ?? 0) + 1;
+    while (taken.has(`${label} #${n}`)) n += 1;
+    const numbered = `${label} #${n}`;
+    lastNumber.set(label, n);
+    taken.add(numbered);
+    return numbered;
   });
 };