feat(activity): one Activity page — runs, admin actions, server log and quota under one filter bar

The audit log, the server log and the admin quota view were three pages (the quota one a Stats tab),
each with its own filters, and the background runs had no list at all. Now one page ("Napló" /
"Activity") reads all four, each still its own table on the server: a shared bar (text, a period of
1 h to 90 days defaulting to 7, an account) and each tab's own filters, the whole view in the URL.
The old page ids open their tab.

Server side: the audit log and the new run list (`/api/admin/runs`) filter and page like the server
log, through one keyset helper (`routes/_keyset`) the log now shares; an audit row keeps the request
it was made in (migration 0111), so its log lines are a pivot away, as a run's are (`lrun`). The
quota breakdown takes since/until and one account. The Scheduler rows get a history button to their
job's runs.

Also fixed on the way: re-saving the value in force on the Configuration page staged its override
without committing it (the commit sat inside the audit branch), so the save was lost.

frontend/src/lib/auditText.dom.test.ts

@@ -0,0 +1,114 @@
+// @vitest-environment jsdom
+//
+// An audit row whose server summary is a fixed English line ("log_level = DEBUG", "rss_poll → 15
+// min/run", "Background sync paused") reads in the reader's language, rebuilt from the row's
+// data through the REAL catalog. A row whose summary is data (an e-mail, a URL) keeps it.
+import { afterEach, describe, expect, it } from "vitest";
+import i18n, { setLanguage } from "../i18n";
+import type { AuditRow } from "./api";
+import { auditText } from "./auditText";
+
+afterEach(() => {
+  setLanguage("en");
+});
+
+const row = (over: Partial<AuditRow>): AuditRow => ({
+  id: 1,
+  created_at: null,
+  actor_id: null,
+  action: "sync_pause",
+  target_type: null,
+  target_id: null,
+  summary: null,
+  before: null,
+  after: null,
+  request_id: null,
+  ...over,
+});
+
+function details(r: AuditRow): string {
+  setLanguage("hu");
+  const t = i18n.getFixedT("hu");
+  const { head, sub } = auditText(t, r, "hu");
+  return [head, sub].filter(Boolean).join(" | ");
+}
+
+describe("an audit row's details", () => {
+  it("name a config change's field and values", () => {
+    const set = row({
+      action: "config_set",
+      target_type: "config",
+      target_id: "plex_enabled",
+      summary: "plex_enabled = True",
+      before: { value: false },
+      after: { value: true },
+    });
+    expect(details(set)).toMatch(/ \| Ki → Be$/);
+    expect(details(set)).not.toContain("plex_enabled");
+    const reset = row({
+      action: "config_reset",
+      target_type: "config",
+      target_id: "download_upload_max_bytes",
+      summary: "download_upload_max_bytes → default",
+      before: { value: 5242880 },
+    });
+    expect(details(reset)).toMatch(/ \| 5\s242\s880 → alapérték$/);
+    const secret = row({
+      action: "config_set",
+      target_type: "config",
+      target_id: "youtube_api_key",
+      summary: "youtube_api_key = (secret updated)",
+    });
+    expect(details(secret)).toMatch(/ \| titok frissítve/);
+  });
+
+  it("tell a secret's reset from its update, and name a choice", () => {
+    const reset = row({
+      action: "config_reset",
+      target_type: "config",
+      target_id: "tmdb_api_key",
+      summary: "tmdb_api_key → default",
+    });
+    expect(details(reset)).toMatch(/ \| titok visszaállítva/);
+    const choice = row({
+      action: "config_set",
+      target_type: "config",
+      target_id: "plex_transcode_hw",
+      before: { value: "auto" },
+      after: { value: "on" },
+    });
+    expect(details(choice)).toMatch(/ \| Automatikus → GPU$/);
+  });
+
+  it("name an interval, a batch and a count in the reader's language", () => {
+    expect(
+      details(
+        row({
+          action: "scheduler_interval",
+          target_type: "job",
+          target_id: "rss_poll",
+          summary: "rss_poll → 15 min/run",
+          after: { interval_minutes: 15 },
+        }),
+      ),
+    ).toBe("RSS-lekérdezés (új feltöltések) | 15 percenként");
+    expect(
+      details(row({ action: "maintenance_tune", after: { revalidate_batch: 50000 } })),
+    ).toMatch(/^Futásonként újraellenőrzött videók \| 50\s000$/);
+    expect(
+      details(
+        row({ action: "audit_clear", summary: "Cleared 12 audit entries", after: { cleared: 12 } }),
+      ),
+    ).not.toContain("Cleared");
+  });
+
+  it("add nothing to a pause, whose action already says it", () => {
+    expect(details(row({ action: "sync_pause", summary: "Background sync paused" }))).toBe("");
+  });
+
+  it("keep a summary that is data", () => {
+    expect(details(row({ action: "invite_add", summary: "someone@example.com" }))).toBe(
+      "someone@example.com",
+    );
+  });
+});