Integrate credential-isolated profile triage pilot

[acidkill]

Changes

• Explicit remote profile triage opt-in with symmetric network and token settings.
• Confirm focused failure through the live collector before advising.
• Preserve private measurements and typed decision receipts after parser failure or timeout.
• Keep diagnostic choice, causal ranking and provider usage separate.

Verification

• 810 local Python tests passed in 37.714 seconds.
• Deterministic observer acknowledgment replaces a flaky synthetic timing race.
• Graph rebuilt; whitespace checks pass.

No live comparison, native delivery claim or release is included.