pres_mgmt: migrate to typed PersistedState store, canonical config schema

Replaces untyped $events_loc.pres_mgmt (svelte-persisted-store) with a
dedicated pres_mgmt_loc (runed PersistedState) backed by a fully typed
PresMgmtLocState interface and PressMgmtRemoteCfg for the server-side JSON.

Key changes:
- ae_events_stores__pres_mgmt_defaults.ts: canonical interfaces + defaults
  covering all hide__/show__ fields, labels, report prefs, query filters,
  and lock_config sync fields; qry_enabled uses 'not_enabled' (matches API)
- ae_events_stores__pres_mgmt.svelte.ts: new PersistedState store
- ae_events__event.ts: sync_config__event_pres_mgmt() rewired to write
  directly to pres_mgmt_loc.current; launcher link inversion preserved
- All 26+ pres_mgmt templates migrated from $events_loc.pres_mgmt.* to
  pres_mgmt_loc.current.*
- New config UI at (pres_mgmt)/pres_mgmt/config/ — manager + edit mode only
- Event settings page: removed embedded pres_mgmt form, links to config page
- event_page_menu: Config button visible only when manager_access + edit_mode

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/stores/store_versions.ts

@@ -33,6 +33,7 @@
 export const AE_LOC_VERSION = 2; // Bumped 2026-03-30: force-clear stale site_cfg_json (novi_idaa_api_key missing bug)
 export const AE_EVENTS_LOC_VERSION = 1;
 export const AE_IDAA_LOC_VERSION = 1; // Added 2026-03-30: was missing, no wipe mechanism existed
+export const AE_PRES_MGMT_LOC_VERSION = 1; // Added 2026-04-02: new standalone PersistedState store
 
 // Version check side-effect: runs on import, before any persisted() call.
 // Guard presence of `localStorage` and its functions for safety (SSR, Node flags).
@@ -44,6 +45,10 @@ if (
     _check_and_wipe('ae_loc', AE_LOC_VERSION);
     _check_and_wipe('ae_events_loc', AE_EVENTS_LOC_VERSION);
     _check_and_wipe('ae_idaa_loc', AE_IDAA_LOC_VERSION);
+    // ae_pres_mgmt_loc uses PersistedState (runed) which stores raw JSON without a __version
+    // field. The _check_and_wipe mechanism requires __version in the stored data — do NOT
+    // add it here until pres_mgmt_loc_defaults includes __version. For now the key is new
+    // (no stale data exists) so no wipe is needed.
 }
 
 function _check_and_wipe(key: string, expected_version: number): void {