[Code scan] Accumulate existing TMDC SOC hoppings instead of overwriting them

[njzjz]

This issue comes from a Codex global scan of deepmodeling/tbplas at commit 4d3652b.

Severity: Medium

The TMDC SOC builder retrieves an existing (0, 0, 0) hopping, adds soc_intensity into a local energy variable, and then discards that accumulated value. The final add_hopping() call writes only soc_intensity, so any existing hopping term is overwritten instead of updated.

Code reference:

tbplas/tbplas/materials/xs2.py

Lines 514 to 519 in 4d3652b

	try:
	energy = cell.get_hopping((0, 0, 0), i, j)
	except PCHopNotFoundError:
	energy = 0.0
	energy += soc_intensity
	cell.add_hopping((0, 0, 0), i, j, soc_intensity)

Suggested fix: pass the accumulated energy value to add_hopping().