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797692d70f
Two bugs in skills/continuous-learning-v2/scripts/detect-project.sh that
silently split the same project into multiple project_id records:
1. Locale-dependent SHA-256 input (HIGH)
The project_id hash was computed with
printf '%s' "$hash_input" | python -c 'sys.stdin.buffer.read()'
which ships shell-locale-encoded bytes to Python. On a system with a
non-UTF-8 LC_ALL (e.g. ja_JP.CP932 / CP1252) the same project root
produced a different 12-char hash than the UTF-8 locale would produce,
so observations/instincts were silently written under a separate
project directory. Fixed by passing the value via an env var and
encoding as UTF-8 inside Python, making the hash locale-independent.
2. basename cannot split Windows backslash paths (MEDIUM)
basename "C:\Users\...\ECC作成" returns the whole string on POSIX
bash, so project_name was garbled whenever CLAUDE_PROJECT_DIR was
passed as a native Windows path. Normalize backslashes to forward
slashes before calling basename.
Both the primary project_id hash and the legacy-compat fallback hash
are updated to use the env-var / UTF-8 approach.
Verified: id is stable across en_US.UTF-8, ja_JP.UTF-8, ja_JP.CP932, C,
and POSIX locales; Windows-path input yields project_name=ECC作成;
ASCII-only paths regress-free.