docs: redesign Roadmap as a native five-stage workflow

docs/contribution/diagrams.md

@@ -15,7 +15,7 @@ description: Author typed JSON diagrams and embed their local interactive viewer
 | Dataflow | Sources, processing and destinations |
 | Lifecycle | States and transitions |
 
-The standalone viewer provides pan/zoom, node inspection, search/focus, relationship tracing, light/dark themes, and an export menu. Motion is opt-in. The Organization views exercise architecture mode; other diagram types use the same build interface but do not yet have portal-specific examples. Browser-dependent exports such as video are not acceptance-tested by this integration.
+The standalone viewer provides pan/zoom, node inspection, search/focus, relationship tracing, light/dark themes, and an export menu. Motion is opt-in. The Organization views exercise architecture mode; Roadmap uses native Workflow v2 with a horizontal desktop path and the same stages stacked on mobile. Other diagram types use the same build interface but do not yet have portal-specific examples. Browser-dependent exports such as video are not acceptance-tested by this integration.
 
 ## Author a diagram
 
@@ -23,6 +23,8 @@ Create `diagrams/<name>.<type>.json` using the matching schema and authoring gui
 
 Set `meta.output` to `static/diagrams/<name>/index.html`. The build validates the typed source with the upstream showcase profile, renders locally, checks the artifact, and publishes the standalone HTML. Editable JSON stays in the repository; the portal does not publish source-download files.
 
+Roadmap has a scoped multiline typography adapter in `scripts/roadmap-viewer.mjs`. Its two `.workflow.json` sources use the native v2 schema, one lane, `mainPath`, logical columns and native routes. The native renderer validates the schema and solves geometry; the adapter wraps the existing action/output/exit copy, removes the redundant lane frame and trims empty canvas. The final artifact then passes the upstream showcase composition checker. This path records source, adapter and final artifact hashes in private `.cache/archify/*.portal.json` receipts, not upstream `deliver` provenance. Keep the vendor unchanged and run the Roadmap browser check at 1440, 390 and 320 pixels after any copy or sizing change. Typography is embedded in the SVG so exports retain it.
+
 ```sh
 pnpm diagrams:build
 pnpm test

docs/strategy/roadmap.mdx

@@ -11,7 +11,7 @@ import ArchifyDiagram from '@site/src/components/ArchifyDiagram';
 
 Understand today’s code and how work really reaches production before introducing AI into the workflow. Fix what would make a pilot unsafe or impossible to evaluate—not every item of technical debt.
 
-<ArchifyDiagram name="strategy-roadmap" title="Assess code and delivery, improve readiness, pilot, expand on evidence, then sustain" story />
+<ArchifyDiagram name="strategy-roadmap" title="Understand today → Prepare foundations → Pilot → Expand → Sustain" story />
 
 **Recommended sequence · Target operating model, not an approved schedule or deployed governance.**