Remove commercial wording

PAPER.md

@@ -91,7 +91,7 @@ converts cleanly, and trains on a consumer GPU” matters more.
 | CPU / ORT / engine | `onnx/*_fp16.onnx` | 4x / 2x | same |
 
 All released models are pretrained only on **CC0 / public-domain images**. They
-are MIT-licensed and usable in commercial projects.
+are MIT-licensed and permissive.
 
 ### Urban100 validation
 
@@ -201,17 +201,15 @@ The fixed base uses **Magic Kernel Sharp 2013** by **John Costella**
 an independent PyTorch implementation of the integer-scale phase kernels, not
 a copy of the reference C code.
 
-## License and commercial use
+## License
 
-The code and released weights are **MIT-licensed**. You may use, modify, and
-ship them commercially, including in closed-source products. Keep the MIT
-copyright and permission notice with copies or substantial portions of the
-software.
+The code and released weights are **MIT-licensed** and permissive. Keep the
+MIT copyright and permission notice with copies or substantial portions of the
+software. See `LICENSE`.
 
 The released weights were trained on a curated CC0 / public-domain image set.
-That reduces copyright risk, but it is not a legal guarantee: source-image
-provenance, personality/trademark rights, and jurisdiction-specific rules still
-matter. This is not legal advice; no warranty is provided.
+This is a provenance statement, not a guarantee; source-image rights and
+jurisdiction-specific rules can still matter. No warranty is provided.
 
 ```bibtex
 @misc{pulse_body_2026,