Two related crash bugs in the Python planning layer:
P1: Path.read_text() without encoding= defaults to locale.getpreferredencoding()
(cp1252 on most Windows installs). HuggingFace config.json is UTF-8 — if it
contains any non-ASCII byte (Chinese fields, accented chars, emoji in
metadata), read_text() raises UnicodeDecodeError. In doctor.py this is
caught and mis-reported as 'config.json is missing or invalid' (false
negative); in build_plan() called directly it is an uncaught crash.
Fixed: read_text(encoding='utf-8') in both resource_plan.py and doctor.py.
P2: int(cfg.get('kv_lora_rank', 0)) crashes with TypeError if the key is
present but null (JSON null). dict.get() returns the default only when
the key is ABSENT; a null value returns None, and int(None) raises
TypeError. The engine validates against malformed configs in C but the
Python planner did not.
Fixed: int(cfg.get(key) or 0) — coerces both missing and null to 0.
Applied to all 8 int(cfg.get(...)) calls in build_plan().
Co-authored-by: woolcoxm <13604288+woolcoxm@users.noreply.github.com>
woolcoxm
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