[Code scan] Periodic table list and JSON data are inconsistent for elements 104-118

This issue is part of a Codex global repository code scan. `ELEMENTS` lists elements through Og (118), but `periodic_table.json` stops at Lr (103). In addition, `Element.from_Z()` uses `Z < len(ELEMENTS)`, which excludes the last listed element even if data existed. Affected code/data: https://github.com/deepmodeling/dpdata/blob/a7a50bfc096e1a65470af6f1c48152dc0275ec1c/dpdata/periodic_table.py#L9-L128 https://github.com/deepmodeling/dpdata/blob/a7a50bfc096e1a65470af6f1c48152dc0275ec1c/dpdata/periodic_table.py#L131-L153 https://github.com/deepmodeling/dpdata/blob/a7a50bfc096e1a65470af6f1c48152dc0275ec1c/dpdata/periodic_table.json#L918-L926 Minimal reproducer: ```python import json from pathlib import Path from dpdata.periodic_table import ELEMENTS, Element data = json.loads(Path("dpdata/periodic_table.json").read_text()) print([e for e in ELEMENTS if e not in data]) for z in [117, 118]: try: print(z, Element.from_Z(z)) except Exception as exc: print(z, type(exc).__name__, exc) ``` Current output: ```text ['Rf', 'Db', 'Sg', 'Bh', 'Hs', 'Mt', 'Ds', 'Rg', 'Cn', 'Nh', 'Fl', 'Mc', 'Lv', 'Ts', 'Og'] 117 KeyError 'Ts' 118 AssertionError ``` The JSON data and `ELEMENTS` should be consistent, and `from_Z()` should accept the final element in the list.