fix: never log the OTP code value (secret-in-logs); correct false test claim (v0.1.5)

M-1: retrieve.py logged the live single-use code at INFO ('found code %s', 'code %s
skipped too old'), shipping the secret to any aggregation/retention sink the host wires
(our /srv/logs -> loki/grafana path). drop the code value from both lines — log that a
code was found/retrieved and where, never the value. also truncate the oauth token-endpoint
error body to 200 chars so a token response can't be dumped whole.

aiomail-F3: CLAUDE.md claimed an '8-case tested' suite that does not exist in the repo;
corrected to describe the manual throwaway-venv exercise + the real flake8 check.

verified by execution: code retrieved, value absent from logs; control confirms the old
line carried it.

Signed-off-by: disqualifier <dev@disqualifier.me>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "aiomail"
-version = "0.1.4"
+version = "0.1.5"
 description = "async IMAP one-time-code retrieval with password/OAuth2 auth and dynamic matching"
 requires-python = ">=3.10"
 dependencies = [