Document MVP realism target guardrails

AGRARIAN_DEVELOPMENT_ROADMAP.md

@@ -825,7 +825,7 @@ Target deliverable: A small group can join a server, spawn into one biome, gathe
 - [x] Replace the placeholder Ground Zero environment presentation with investor-facing biome dressing: believable terrain material, grass, brush, shrubs, bushes, trees, rocks, water visuals, and local coastal-scrub color variation. Upgraded the repeatable Ground Zero setup to require denser investor-facing foliage counts and twenty-three labeled variation actors covering trees, brush, shrubs, dry grass mats, rock slabs, water-bank pieces, reeds, and freshwater surface material variation, then extended the verifier/docs so the map no longer qualifies if the visual dressing falls back to sparse placeholder presentation.
 - [x] Add a real water-source visual pass with surface material, edge treatment, scale, and placement that reads as collectable freshwater instead of a placeholder plane. Formalized the MVP freshwater presentation around the native `AAgrarianWaterSource` water-surface, stone-bank, and collect-marker proxies, documented the Ground Zero drainage-candidate placement and nearby water-bank/reed dressing, and added an Unreal verifier that checks surface material, edge treatment, scale, placement, and nearby dressing actors in the actual map.
 - [x] Add density and sightline tuning so grasses, shrubs, trees, and resource clusters are visible enough to sell the world without hiding gameplay-critical objects. Added protected foliage clearances around early survival targets and biome resource nodes, sampled first-look sightline corridors from the player start to wood, fiber, campfire, shelter, wildlife, and freshwater, plus a dedicated Unreal verifier/documentation gate so investor-facing density cannot regress into object-hiding clutter.
-- [ ] Preserve realism as the target: use assets, materials, lighting, and environmental dressing that can survive toward MVP production rather than cosmetic throwaways where practical.
+- [x] Preserve realism as the target: use assets, materials, lighting, and environmental dressing that can survive toward MVP production rather than cosmetic throwaways where practical. Added MVP realism target rules to the shared art/UX/code/asset standards, tied current 0.1.O visual passes to production-directed proxy expectations, and added a verifier that requires Ground Zero materials, water, density/sightline, character, and survival-object docs to point toward production realism instead of cosmetic throwaways.
 - [ ] Define default, recommended, and cinematic investor rendering presets, with ray tracing available only as an optional high-end/cinematic mode and never required for baseline visual credibility.
 - [ ] Verify the non-ray-traced compatibility/default path still looks credible on common investor, tester, and remote-session hardware.
 - [ ] Add packaged-demo visual QA screenshots or short clips for startup credits, character selection, first spawn, terrain, vegetation, water, campfire, shelter, pause menu, and save/quit before each investor build is called ready.