fix(nav): the address follows the view through overlays, reloads and Back (review round 1)

- A URL mirror names the view again on every entry Back or Forward lands on, so a change made
  under a dialog, a drawer or a sub-view is not undone by the next reload.
- A view pushed from the entry a reload under a dialog started from no longer inherits its overlay
  mark; a reload under two overlays closes onto the page in one step.
- The linked player reopens over a live search, gives itself up when its list moves first, and
  plays alone over an emptied playlist; a capped Files list keeps the link it cannot resolve.
- The Feed press over a channel ends the search; leaving a search ends its asked mark; Files and
  Playlists searches end with their page; the feed always names its view and debounces its search.
- Search-box keys are declared per module and kept out of the client log below TRACE.
- Writers outside lib/ go through codecs; the URL contract scans computed keys, overlay writers and
  two-line reads, and holds every page to a bookmark round trip (Config, Activity, Playlists and the
  Files sort and viewer added).

frontend/src/lib/logHooks.ts

@@ -14,7 +14,8 @@ import { enabled, errorAttrs, log } from "./log";
 import { pathTemplate } from "./http";
 
 // URL parameters that carry what the user TYPED — search text. Logged only at TRACE ("Teljes").
-// Every other parameter is filter/sort/view state: its NAME is kept at INFO, its value at DEBUG.
+// Every other parameter is filter/sort/view state: its NAME is kept at INFO, its value at DEBUG. The
+// shell's own here; each page's search boxes join them at install (ModuleDef.typedUrlKeys).
 const TYPED_PARAMS = new Set(["q", "keywords", "search"]);
 
 type Via = "start" | "push" | "replace" | "pop";
@@ -168,9 +169,13 @@ let installed = false;
 /** Install the hooks. Idempotent: a second call (a hot reload) must not wrap History twice.
  *  `appCopy` turns on-screen app copy into its English wording (i18n/appCopy.ts) — passed in, so this
  *  module stays free of the i18n runtime. */
-export function installClientLog(appCopy: AppCopy = () => null): void {
+export function installClientLog(
+  appCopy: AppCopy = () => null,
+  typedParams: readonly string[] = [],
+): void {
   if (installed) return;
   installed = true;
+  for (const k of typedParams) TYPED_PARAMS.add(k);
 
   log.info("app.start", "app loaded", {
     version: FRONTEND_VERSION,