Consolidate future roadmap items

docs/roadmap/future.md

@@ -49,3 +49,38 @@ These ideas are not current behavior:
 
 Each item needs its own design note before implementation. Non-roadmap docs
 must not describe these as available behavior.
+
+## Deferred: Cleanup Refactors
+
+The initial cleanup pass intentionally left these refactors out because the
+current implementation does not yet make them worth the added abstraction.
+
+Revisit these only when new source types, report types, operational
+requirements, or recurring maintenance costs make the duplication materially
+more expensive:
+
+- Weather API optional-source specification/helper refactor: consider when
+  additional Weather API sources make per-source fan-out, policy handling, and
+  provenance wiring repetitive enough to obscure adapter behavior.
+- Broad briefing weather-signal consolidation: consider when multiple briefing
+  builders repeatedly derive the same weather signals and tests begin to need
+  coordinated fixture updates.
+- Generic workflow engine: defer unless generation, inspection, recovery, or
+  future background workflows gain enough shared step semantics to justify a
+  declared execution model.
+- Plugin architecture: defer until there is a concrete external extension
+  contract and at least one implemented extension point.
+- Cobra migration: defer while the standard-library CLI remains small,
+  explicit, and covered by parser tests.
+- Manifest, resume, or progress system: defer until operators need resumable
+  runs, checkpoint recovery, or richer audit trails than the current durable
+  artifacts and metadata provide.
+- Global test helper package: defer while package-local helpers keep tests
+  clear; revisit only if setup duplication starts to hide behavior.
+- Logging subsystem: defer until there are recurring operator diagnostics that
+  cannot be handled with current errors, metadata, inspection commands, and
+  artifact output.
+
+Any future implementation should preserve the existing public CLI, artifact
+paths, report identities, and adapter boundaries unless a separate roadmap
+explicitly changes them.