Show persistent for local-storage trackers

Local storage, IndexedDB, and cache storage have no expiry yet
persist until explicitly cleared, so a missing max-age should read
as "persistent", not "session" (the latter only fits cookies and
session storage, which end with the session or tab).

Thread the tracker type through humanizeSeconds (helpers) and
humanizeDuration (cookie-banner, with a localized persistent label)
and pass it at every console and banner call site. The consent
record query now selects trackerType so its duration column can
make the same distinction. This mirrors the Go HumanizedDuration
helper that already renders these types as persistent.

Signed-off-by: Émile Ré <emile@probo.com>

packages/cookie-banner/src/components/cookie-list.ts

@@ -52,8 +52,8 @@ export class ProboCookieList extends ProboElement {
     if (!this.template) return;
 
     const duration = cookie.max_age_seconds != null
-      ? humanizeDuration(cookie.max_age_seconds, lang)
-      : humanizeDuration(0, lang);
+      ? humanizeDuration(cookie.max_age_seconds, lang, cookie.tracker_type)
+      : humanizeDuration(0, lang, cookie.tracker_type);
 
     const type = getTrackerTypeLabel(cookie.tracker_type);
 

packages/cookie-banner/src/cookie-utils.ts

@@ -13,6 +13,16 @@
 // PERFORMANCE OF THIS SOFTWARE.
 
 import { interpolate } from "./i18n";
+import type { TrackerType } from "./types";
+
+// Tracker types whose data persists until explicitly cleared. When such a
+// tracker has no max-age, its lifetime is "persistent" rather than "session"
+// (cookies and session storage are cleared when the session/tab ends).
+const PERSISTENT_TRACKER_TYPES: ReadonlySet<TrackerType> = new Set([
+  "LOCAL_STORAGE",
+  "INDEXED_DB",
+  "CACHE_STORAGE",
+]);
 
 interface DurationTexts {
   [key: string]: string;
@@ -35,6 +45,7 @@ const durationTextsByLanguage: Record<string, DurationTexts> = {
     duration_second_one: "{{count}} second",
     duration_second_other: "{{count}} seconds",
     duration_session: "session",
+    duration_persistent: "persistent",
   },
   fr: {
     duration_year_one: "{{count}} an",
@@ -52,6 +63,7 @@ const durationTextsByLanguage: Record<string, DurationTexts> = {
     duration_second_one: "{{count}} seconde",
     duration_second_other: "{{count}} secondes",
     duration_session: "session",
+    duration_persistent: "persistant",
   },
   de: {
     duration_year_one: "{{count}} Jahr",
@@ -69,6 +81,7 @@ const durationTextsByLanguage: Record<string, DurationTexts> = {
     duration_second_one: "{{count}} Sekunde",
     duration_second_other: "{{count}} Sekunden",
     duration_session: "Sitzung",
+    duration_persistent: "dauerhaft",
   },
   es: {
     duration_year_one: "{{count}} año",
@@ -86,6 +99,7 @@ const durationTextsByLanguage: Record<string, DurationTexts> = {
     duration_second_one: "{{count}} segundo",
     duration_second_other: "{{count}} segundos",
     duration_session: "sesión",
+    duration_persistent: "persistente",
   },
 };
 
@@ -107,9 +121,17 @@ const DURATION_UNITS: [number, string, number][] = [
   [1, "duration_second", 0],
 ];
 
-export function humanizeDuration(seconds: number, lang?: string): string {
+export function humanizeDuration(
+  seconds: number,
+  lang?: string,
+  trackerType?: TrackerType,
+): string {
   const texts = getDurationTexts(lang);
-  if (seconds <= 0) return texts.duration_session;
+  if (seconds <= 0) {
+    return trackerType && PERSISTENT_TRACKER_TYPES.has(trackerType)
+      ? texts.duration_persistent
+      : texts.duration_session;
+  }
 
   let remaining = seconds;
   const parts: string[] = [];