feat: add Merkle tree v3.0 with enhanced security and blockchain attestation

Author: lukepuplett

README.md

@@ -230,7 +230,7 @@ When preparing a new release, follow these steps to ensure quality and consisten
 
 5. **Build & Test**
    - Run full build in Release mode
-   - Verify all 231+ tests pass
+   - Verify all tests pass
    - Check NuGet package builds successfully
    - Address any build warnings
 

src/Evoq.Blockchain/Evoq.Blockchain.csproj

@@ -4,7 +4,7 @@
     <TargetFramework>netstandard2.1</TargetFramework>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
-    <Version>1.4.0</Version>
+    <Version>1.5.0</Version>
     <Authors>Luke Puplett</Authors>
     <Company>Evoq</Company>
     <Description>Blockchain utilities for .NET applications</Description>