feat/show estimated finish time and active hook in lamni progress ring

Flomni's ring-progress center label already showed "Est. finish" and
the active at-each-angle hook name; LamNI's equivalent
(_lamnigui_update_progress()) was missing both. Ported the same
formatting/display logic over so the two setups' progress displays
match.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

csaxs_bec/bec_ipython_client/plugins/LamNI/gui_tools.py

@@ -250,6 +250,15 @@ class LamniGuiTools:
         else:
             eta_display = "N/A"
 
+        # Format estimated finish (wall-clock) time
+        finish_str = self.progress.get("estimated_finish_time")
+        if finish_str is not None:
+            finish_display = datetime.datetime.fromisoformat(finish_str).strftime(
+                "%Y-%m-%d %H:%M:%S"
+            )
+        else:
+            finish_display = "N/A"
+
         text = (
             f"Progress report:\n"
             f"  Tomo type: {self.progress['tomo_type']}\n"
@@ -260,8 +269,15 @@ class LamniGuiTools:
             f"  Current projection within subtomo: {self.progress['subtomo_projection']}\n"
             f"  Total projections per subtomo: {int(self.progress['subtomo_total_projections'])}\n"
             f"  Scan started: {start_display}\n"
-            f"  Est. remaining: {eta_display}"
+            f"  Est. remaining: {eta_display}\n"
+            f"  Est. finish: {finish_display}"
         )
+        # self._describe_active_hook() comes from LamNI itself (this is a
+        # mixin, always combined with it) -- shown only when a hook is
+        # actually active, mirrors Flomni's identical center-label note.
+        hook_description = self._describe_active_hook()
+        if hook_description:
+            text += f"\n  Hook: {hook_description}"
         self.progressbar.set_center_label(text)