Docs: session log Part M + roadmap tick — Phase 1.5b ground bundle shipped

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Docs/Vault/06_Roadmap/Iteration_2026-07_CoopHades.md

@@ -161,12 +161,13 @@ attacks/animations/effects**. Art direction deliberately UNDECIDED — lighting
 Post-1.5 operator verdict: barrels fixed (radius disc + 1.5 s fuse, `eb7f57216`) but **"the ground is very
 plain"** — expand 1.5 before 1.7. Locked bundles, sequenced ground-first:
 
-1. **Ground bundle** (the stated pain): (a) ground MATERIAL pass — macro-noise blended albedo (generated
-   textures + Synty terrain textures), per-BIOME ground tint driven client-side (the WorldAtmosphere
-   sibling), rim-darkening vignette overlay; (b) **per-room dressing scatter** — client-only, seeded off the
-   replicated run seed, cosmetic `SM_Env_Ground_*` detail meshes (ripples/cracks/pebbles/bones), torn down
-   with the room; (c) base worn paths (spawn→warpgate→storage); (d) re-enable curated base flora (~300
-   inactive props; they inherit sway/rustle).
+1. ✅ **Ground bundle** (SHIPPED `2fc5ae9a1`): (a) material pass — real tiling (22×/26×) + Synty normals +
+   generated LINEAR macro-noise detail textures w/ baked rim vignette (★ an sRGB-imported detail map mul2x
+   DARKENS 2.3× — import detail albedo LINEAR); per-room-biome ground tint via MPB inside
+   `WorldAtmosphereSystem`; (b) `RoomDressingSystem`+`RoomDressingConfig` — 26 seeded biome-flavoured props
+   per room inside the room's ACTUAL shape (hash stream 0xD2E55; 47 build-safe prefab refs), room-torn-down;
+   live-verified incl. teardown + exact Meadow tint convergence; (c) worn paths storage→warpgate/base-gate;
+   (d) 357 base flora re-enabled (buildings/pond/FX stay parked).
 2. **Decals**: dynamic explosion scorch marks (fading quad pool at boom sites), static POI scorch/cracks,
    cover damage-crack states (URPMaterialPropertyBaseColor darkening keyed on replicated Remaining).
 3. **Hazard variant**: Blight geyser (periodic both-sides AoE on the HazardExplosion + telegraph-disc