docs: mark resource authority phase complete

docs/LEARNING_ROADMAP.md

@@ -54,7 +54,7 @@ The gate is complete when the same scenario produces the same checksum without
 loading `main.tscn`, and loading or unloading a visual does not change
 authoritative NPC or resource state.
 
-**Current progress:** the first two architecture slices are implemented:
+**Current progress:** the first three architecture slices are implemented:
 
 - `SimulationClock` advances explicit fixed ticks while preserving remainder;
 - NPC decisions and visual wander requests use controlled per-NPC random
@@ -65,10 +65,15 @@ authoritative NPC or resource state.
   clock, and RNG state;
 - a save-at-tick-24 continuation test matches an uninterrupted 48-tick
   checksum and rejects unsupported schema versions.
+- `SimulationManager` owns resource records and all amount/reservation
+  mutation; ResourceNode binds by stable ID as presentation and interaction
+  geometry;
+- an unload/rebind regression proves resource state remains authoritative while
+  its scene node is absent.
 
-The gate remains open. Scene-independent resource authority, stable
-definitions, responsibility separation, and visual load/unload invariance are
-still required. See [the simulation state schema](SIMULATION_STATE_SCHEMA.md).
+The gate remains open. Stable definitions, responsibility separation, and NPC
+visual load/unload invariance are still required. See
+[the simulation state schema](SIMULATION_STATE_SCHEMA.md).
 
 ## Three vertical slices
 
@@ -615,23 +620,21 @@ Completed foundations:
 
 The practical next sequence is:
 
-1. Move resource amount/reservation authority out of `ResourceNode` scenes and
-   make unloaded resources remain in state.
-2. Replace free-form task and profession strings with stable IDs and
+1. Replace free-form task and profession strings with stable IDs and
    definitions.
-3. Separate action selection, execution, target resolution, and visual travel;
+2. Separate action selection, execution, target resolution, and visual travel;
    remove decision mutation from `WorldViewManager`.
-4. Define active-position synchronization and prove visual unload/reload.
-5. Pass the architecture gate's deterministic headless and unloaded-visual exit
+3. Define active-position synchronization and prove visual unload/reload.
+4. Pass the architecture gate's deterministic headless and unloaded-visual exit
    tests.
-6. Build location-based food storage, inventory, and transactions.
-7. Emit structured economic events while making one NPC visibly gather, carry,
+5. Build location-based food storage, inventory, and transactions.
+6. Emit structured economic events while making one NPC visibly gather, carry,
    store, retrieve, and eat food.
-8. Add save-slot persistence and explicit schema migrations before schedules
+7. Add save-slot persistence and explicit schema migrations before schedules
    or social state expand.
-9. Resume Terrain3D sculpting, runtime integration, and the simulation-garden
+8. Resume Terrain3D sculpting, runtime integration, and the simulation-garden
    beauty pass.
-10. Add stylized character and profession readability plus the reason
+9. Add stylized character and profession readability plus the reason
    inspector.
 
 This order strengthens the simulation while regularly producing visible