fix: persist op_account in chezmoi data

[devin-ai-integration]

Summary

promptStringOnce . "op_account" re-prompts on every chezmoi apply because op_account was only consumed in [onepassword].args but never written back to [data]. Adding it to [data] lets chezmoi find the cached value on subsequent runs.

 [data]
   personal = {{ $personal }}
   profile_ref = {{ $profileRef | quote }}
+  op_account = {{ $opAccount | quote }}

Link to Devin session: https://app.devin.ai/sessions/c5a2e37f435e42c08adf79c46ce59b0e
Requested by: @caipira113

[devin-ai-integration]

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