Preserve incremental analysis state on failure

docs/internal/stage-analyze.md

@@ -125,6 +125,19 @@ Supported source families:
   guidance.
 - dependency cycles or unavailable required dependencies fail.
 - adapter validation failures fail stage.
+- a scheduled artifact failure returns the restricted analyze-state projection
+  with the active artifact marked `failed`, a bounded error, and no output
+  authority. Current transitive dependents become stale without execution.
+- earlier artifacts from the invocation remain current only after their
+  run-local output passed validation and canonical materialization. They remain
+  in invocation history; unattempted later artifacts do not appear there.
+- unrelated current records survive a partial failure. Old canonical bytes for
+  the failed artifact and newly materialized bytes whose projection cannot be
+  persisted are incidental, not current evidence.
+- the runner persists a valid partial projection before it marks aggregate
+  analyze failed and invalidates publish and notify through the application
+  dependency relation. Projection-persistence errors retain the last durable
+  per-artifact authority and are joined with the original failure context.
 
 ## Invariants
 
@@ -154,4 +167,5 @@ Supported source families:
   `internal/stage/analyze_reconciliation.go`, and
   `internal/stage/analyze_reconciliation_test.go`,
   `internal/stage/analyze_plan.go`, `internal/stage/analyze_plan_test.go`, and
-  `internal/stage/analyze_incremental_execution_test.go`
+  `internal/stage/analyze_incremental_execution_test.go`, and
+  `internal/stage/analyze_failure_test.go`