views' timestamp loses tz info when run in HTTP or cli.py #312

Bug Description

When a view is generated via the regular annotate() wrapper (used in cli.py and HTTP ) , the "run ID" (#269 ) re-write the timestamp but without timezone information as fixed in clamsproject/mmif-python#368

Reproduction steps

Run any app uses (e.g., SWT v9) clams-python 1.4.0 (2025 Nov) -- 1.8.0 , and check the timestamp value in the view's metadata.

  "timestamp": "2026-09-06T16:38:28.203289",

Expected behavior

the value should be Z part . The mmif-python side added this in 2026 Feb, but clams-python side somehow have implemented its own timestamping code and wasn't updates along with clamsproject/mmif-python#368.

Log output

Screenshots

No response

Additional context

Proper fix should be, instead of maintaining its own timestamping code in clams-python, capturing the timestamp from the first view of the current run and rewrite other following views (if any) with the first view's timestamp.