Exclude only proven separate values from Webpack loader alias walks; preserve unsupported, projected and unresolved origins as unknown and retain the real alias-state bound.
Refs #7253. The full Bitwarden precision regression remains open.
Validation: 336 focused tests and check:fast passed; real Bitwarden preload identity retained; full main/preload completed with disclosed partial coverage.
Assisted-by: Reimu (gensokyo-skills:reimu-incident-triage)