chore: add project LICENSE (PROPRIETARY)

LICENSE

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+# BUSINESS SOURCE LICENSE 1.1 — Rug Munch Media LLC
+
+**Licensor:** Rug Munch Media LLC (Wyoming)
+**Licensed Work:** WalletPress v1.1.0
+**Change Date:** 2029-01-01
+**Change License:** MIT
+
+---
+
+## Terms
+
+1. **Grant of License.** Subject to the terms and conditions of this License,
+   Licensor hereby grants You a worldwide, non-exclusive, non-transferable,
+   limited license to use, copy, modify, and distribute the Licensed Work
+   for NON-COMMERCIAL purposes only.
+
+2. **Commercial Use.** Any use of the Licensed Work for commercial purposes
+   (including but not limited to: selling, licensing, offering as a service,
+   or using in a product that generates revenue) requires a separate commercial
+   license agreement with Rug Munch Media LLC.
+
+3. **Change Date.** On the Change Date specified above, this License will
+   convert to the Change License (MIT), after which the Licensed Work may
+   be used under MIT terms.
+
+4. **Trademark.** This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of Licensor.
+
+5. **DISCLAIMER.** THE LICENSED WORK IS PROVIDED "AS IS" WITHOUT WARRANTY
+   OF ANY KIND, EXPRESS OR IMPLIED.
+
+---
+
+## What You CAN Do (Non-Commercial)
+
+- Read the code to learn from it
+- Fork and modify for personal/non-commercial use
+- Contribute improvements back via pull requests
+- Run the software for personal projects
+- Use for academic research and education
+
+## What You CANNOT Do (Without Commercial License)
+
+- Sell WalletPress or a derivative as a product
+- Offer WalletPress-as-a-Service to paying customers
+- Use WalletPress in a commercial wallet product
+- White-label WalletPress for clients
+
+---
+
+For commercial licensing: **enterprise@rugmunch.io**
+For support: **support@rugmunch.io**
+
+Copyright (c) 2026 Rug Munch Media LLC. All rights reserved.