Replace ReMind-5B base with TF+2000 checkpoint

Use the frozen TF checkpoint-2000 base used by the current DMD training line and refresh provenance plus SHA256SUMS.

README.md

@@ -104,10 +104,10 @@ trajectories.
 
 ## Checkpoint lineage and validation
 
-- ReMind-5B generator: validated pair-fixed 480p release checkpoint.
+- ReMind-5B generator: pair-fixed 480p checkpoint after an additional 2,000
+  teacher-forcing iterations; this is the frozen base used by the current DMD line.
 - DMD EMA adapter: last complete SF-DMD checkpoint 2500.
 - The ReMind-5B checkpoint loads with 100% key coverage.
-- All eleven public inference presets pass the released validation suite.
 
 Integrity hashes are provided in `SHA256SUMS`.
 

ReMind-5B.safetensors

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ea9777ea50d7ad7fb5fe0a4a88a9ce517b19d372335c23ed39a1b4ca7718fa9c
+oid sha256:fda02ffe06f98d97ca5c42af8b0eef1d627ebc01d95c5364020e7ad8261a4683
 size 11132561488

SHA256SUMS

@@ -1,2 +1,2 @@
 8e786351c0375f5fe0b5c44659272e4aa55ef395fae79860cfab42786150d598  ReMind-5b-dmd-ema.safetensors
-ea9777ea50d7ad7fb5fe0a4a88a9ce517b19d372335c23ed39a1b4ca7718fa9c  ReMind-5B.safetensors
+fda02ffe06f98d97ca5c42af8b0eef1d627ebc01d95c5364020e7ad8261a4683  ReMind-5B.safetensors