fix(flomni): tighten manual_shift_y GUI range to ±50 µm

manual_shift_y (the "additional offset y" that ultimately feeds
tomo_additional_offsety at the scan/RT-controller layer, where it's bounded
by rty's own ±100 hardware travel limit) had no meaningful upper bound of
its own in the Tomo Parameters GUI (-1000 to 1000 µm spinbox range) --
tighten it to ±50 µm, a sane bound at the parameter-entry level, well
inside rty's hardware limit which is left unchanged. GUI-only change
(manual_shift_y itself has no property-level range validation, matching
the existing convention for fovx/fovy/stitch_x/stitch_y). LamNI's own
manual_shift_x/y range is untouched.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0132KBoxsovfcMNRGJhS1Pbw

csaxs_bec/bec_widgets/widgets/tomo_params/tomo_params.py

@@ -2327,7 +2327,7 @@ SETUP_PROFILES: dict[str, dict[str, Any]] = {
             ("fovy", "FOV y (µm)", 0.1, 100.0, 2),
         ],
         "stitch_fields": [("stitch_x", "Stitch x", 0, 50), ("stitch_y", "Stitch y", 0, 50)],
-        "manual_shift_fields": [("manual_shift_y", "Manual shift y (µm)", -1000.0, 1000.0, 3)],
+        "manual_shift_fields": [("manual_shift_y", "Manual shift y (µm)", -50.0, 50.0, 3)],
         "piezo_range_fields": [],
         "offset_fields": [],
         "offset_getter": None,