Mathias a94b860c2e feat(claudewatcher): client-name guard via RegisterRule + env ...

Pre-rollout guard. Source code stays clean — client identities come
from CLAUDE_INGEST_CLIENT_BLOCK env (sourced from a SOPS-encrypted k8s
secret in infra repo). Env value is a regex alternation; main wraps
it with `(?i)\b(...)\b` so word-boundary matching avoids false hits
inside longer identifiers (e.g. "Sebastian" doesn't trigger on "SEB").

DefaultRules (credential shapes) still take precedence so any leak
that's BOTH a client mention AND a credential shape logs as the
credential — strictly more dangerous, points triage at the right
thing. Tests cover precedence + case variations + word-boundary
respect + invalid-pattern rejection.

Refs: infra#73 Track E.1 pre-rollout grill (option B).

Bump-Type: minor

2026-05-26 07:10:05 +02:00

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