Windows PowerShell (5.1) reads .ps1 files without a UTF-8 BOM using the
system codepage, which mangles multi-byte UTF-8 characters like -> and --
into garbage that includes smart-quote characters PowerShell treats as
string terminators - this broke parsing on Melissa's PC (error at
engine.ps1:283, cascading missing-brace errors above it). Sticking to plain
ASCII avoids the whole encoding-dependent failure class.
Practice.json already supported overriding insurance_path/pdf_path/patient_path
via Merge-Config, but the README and example only mentioned login overrides —
document that practices can have different folder paths, not just credentials.
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