docs(ids-cameras): mark manual exposure/auto-gain plan as done

Confirmed merged into main (round-4 HW-testing commit 2f6f445 is an
ancestor of main) -- update the plan's status from "pending
real-hardware verification" to done.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lx3KffiFyyDMKT8vvPENUW

docs/plans/ids-camera-manual-exposure.md

@@ -1,10 +1,11 @@
 # Plan: Manual exposure / auto-gain control for IDSCamera + xrayeye widget knobs
 
-Status: **implemented on `feat/ids-camera-manual-exposure`, pending real-hardware
-verification** (`IDSCamera` and the `OMNY_XRayEye` GUI widget are both used in
-production during beamtimes; this change should be reviewed and verified against
-real hardware outside a live beamtime -- see `csaxs_bec/device_configs/test_ids_camera_41.yaml`
-for a single-camera (ID 41, color) config for that purpose -- before merging).
+Status: **done — implemented and merged into `main`**, after four rounds of
+real-hardware verification (see the addenda below for the bugs found and fixed
+each round: startup auto-exposure/gain never actually engaging, a zero-ms
+exposure floor, auto-gain being more useful as a one-time startup pulse than a
+persistent toggle, and the pixel-clock slider needing to be index-based over
+the camera's real discrete list instead of a ranged value).
 
 ## Context