Rediscover Go settings only when Go work needs them

docs/internal/overview.md

@@ -64,7 +64,9 @@ Candidate checking captures and validates one clean committed source revision
 in `internal/candidate`. Its validation bridge calls `internal/validation` for
 the selected module's default offline Go suite, then runs product-specific
 checks once. Validation and its post-validation build callback share one local
-Go settings owner; the candidate package owns those builds and local-state
+Go settings owner. Each Go acquisition checks inherited and persistent inputs;
+settings are rediscovered when subsequent Go work needs them. An unavailable
+persistent-settings snapshot disables reuse. The candidate package owns builds and local-state
 rechecks; publication owns endpoint guards, tag creation, push, and recovery
 around that same candidate validation path. `internal/validation.CandidateTree` reads
 committed blobs lazily and resolves local destinations from committed entries;