fix(archive): preserve prepared sessions across restarts

apps/control-station/test/observationSessions.test.mjs

@@ -160,7 +160,7 @@ test("session catalog exposes authoritative background preparation state", () =>
   });
 });
 
-test("saved-session rows use only authoritative ready, processing and error states", () => {
+test("saved-session rows distinguish durable, active, cold and failed states", () => {
   const makeDecoded = (state, overrides = {}) => decodeObservationSessionCatalog({
     items: [session({
       status: "interrupted",
@@ -187,7 +187,7 @@ test("saved-session rows use only authoritative ready, processing and error stat
     observationSessionVisualState(makeDecoded("failed", { status: "recording" })),
     "error",
   );
-  assert.equal(observationSessionVisualState(makeDecoded(null)), "error");
+  assert.equal(observationSessionVisualState(makeDecoded(null)), "cold");
   assert.equal(
     observationSessionVisualState(makeDecoded(null, { status: "recording" })),
     "processing",
@@ -206,6 +206,7 @@ test("saved-session rows use only authoritative ready, processing and error stat
   );
   assert.equal(observationSessionVisualLabel("ready"), "Готово");
   assert.equal(observationSessionVisualLabel("processing"), "Обработка");
+  assert.equal(observationSessionVisualLabel("cold"), "Подготовить");
   assert.equal(observationSessionVisualLabel("error"), "Ошибка");
 });