Multi-observer flows with per-observer trust and attribution

[tomas-samek]

Summary

All PoC flows assume a single observer. Multi-observer support (different sources feeding the same agent, per-observer trust, per-observer sessions) is designed but not implemented end-to-end.

What to do

• Observer registry with trust level per observer.
• Query-time filter: "what did observer X tell me about Y?"
• Resolution strategy when two observers conflict (trust-weighted, Conflicted mode with per-observer attribution).
• Test: two observers disagree on the same topic → query surfaces both with attribution.

Acceptance

• Multi-observer scenario test passes.
• Conflicted mode renders per-observer attribution.

Links

• docs/design/honest_agent/00_ARCHITECTURE.md
• src/store/memory.rs (observer_id field already present).