feat(flomni): warn in tomo_parameters() when single-point mode needs a different call

tomo_scan_projection() always runs a Fermat scan and tomo_acquire_at_angle()
always runs a single-point acquisition -- they aren't interchangeable, and
calling tomo_scan_projection() directly while single_point_instead_of_fermat_scan
is on triggers an interactive confirmation prompt that would hang an
unattended queue run. tomo_parameters() now prints a reminder of which one
to call (including inside a custom at_each_angle hook) whenever single-point
mode is enabled, surfacing this proactively instead of only at the point of
the runtime prompt.

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

csaxs_bec/bec_ipython_client/plugins/flomni/flomni.py

@@ -3500,6 +3500,12 @@ class Flomni(
         print(f"Single point instead of fermat   =  {self.single_point_instead_of_fermat_scan}")
         if self.single_point_instead_of_fermat_scan:
             print(f"Single point random shift max <um> =  {self.single_point_random_shift_max}")
+            print(
+                "\x1b[93mNote: with single-point mode on, acquire a single projection "
+                "(including inside a custom at_each_angle hook) with "
+                "tomo_acquire_at_angle(angle), not tomo_scan_projection(angle) -- the "
+                "latter always runs a full Fermat scan regardless of this setting.\x1b[0m"
+            )
         if self.at_each_angle_hook:
             print(f"At-each-angle hook               =  {self.at_each_angle_hook}")
         print("")