Why: Project retrieval hits, tool results, and saved visible analysis must be individually traceable and fully analyzed before later project actions consume them.
Evidence: RED tests first showed missing run-source capture, tool-result capture, and run-wide preflight; go test -p 1 ./... and go build ./... passed; isolated PostgreSQL source, migration, audit, and context tests passed.
Impact: Persist actual run-bound sources with current-status checks and exact manifests behind the disabled X3 assembly gate; no live product path, migration, deployment, or release is enabled.
Refs: TT-N03, TT-R01; approved X3 stage-five plan r1
Why: A durable observation receipt must not be mistaken for completed risk analysis or permission to execute a project action.
Evidence: Exact-source preflight tests cover pending versus proceed, partial attachment, post-ACK source tampering, current authorization, and receipt idempotency; go test -p 1 ./... and go build ./... passed.
Impact: Add a fail-closed host preflight helper and per-message manifest read, still unwired to the public product path pending recovery and four-route coverage.
Refs: TT-N03, TT-R01; approved X3 design r1
Why: Real project messages and retrieved material need a scoped observer and preflight decision contract before they can become governed project candidates.
Evidence: Registration denial test was RED before the implementation; go test ./... passed on Backend origin/main 2716b9e.
Impact: Add public X3 types and trusted single-provider registration; the production observer slot is deliberately not wired yet, so no project observation behavior is claimed.
Refs: TT-N03, TT-R01; approved work observation stage-five plan r1
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