feat(audit): free-text search, JSONL export of the view, labeled dev reset

- search field over flow/step/module/error/detail/project/id backs
  the list and the export ('current view' semantics); match logic
  is a top-level function with unit tests
- export writes one JSON object per line via the save dialog; the
  CLI stays the canonical WORM-grade export
- the bare trash icon on the audit toolbar read as 'delete
  evidence' (security-auditor finding) — the dev-only reset now
  sits in a labeled overflow menu next to the export action

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_localizations.dart

@@ -2126,6 +2126,42 @@ abstract class AppLocalizations {
   /// **'Clear log (local/dev channels only)'**
   String get auditClearLogTooltip;
 
+  /// No description provided for @auditMoreTooltip.
+  ///
+  /// In en, this message translates to:
+  /// **'More actions'**
+  String get auditMoreTooltip;
+
+  /// No description provided for @auditSearchHint.
+  ///
+  /// In en, this message translates to:
+  /// **'Search events (flow, step, module, error text …)'**
+  String get auditSearchHint;
+
+  /// No description provided for @auditExportAction.
+  ///
+  /// In en, this message translates to:
+  /// **'Export current view as JSONL …'**
+  String get auditExportAction;
+
+  /// No description provided for @auditExportNothing.
+  ///
+  /// In en, this message translates to:
+  /// **'No events in the current view — nothing to export.'**
+  String get auditExportNothing;
+
+  /// No description provided for @auditExportSaved.
+  ///
+  /// In en, this message translates to:
+  /// **'Exported {n} events to {path}'**
+  String auditExportSaved(int n, String path);
+
+  /// No description provided for @auditDevResetAction.
+  ///
+  /// In en, this message translates to:
+  /// **'Development reset: clear log … (local/dev only)'**
+  String get auditDevResetAction;
+
   /// No description provided for @auditClearedToast.
   ///
   /// In en, this message translates to: