ManagedToNativeGenerator is invoked on every build

### Description

ManagedToNativeGenerator in WasmApp.Common.targets is called too often, even if no source code changed.

this results a) in a time loss when building or hitting F5 in VS and
b) in my case lots of unnecessary warnings obscuring actual warnings:

### Reproduction Steps

create a blazor wasm project
run `dotnet build -bl`
run `dotnet build -bl` a second time without modifying files in between runs
, inspect the binlog
, observe that ManagedToNativeGenerator is there, eating up time unnecessarily

here's my .csproj:
>

SAK
SAK
SAK
SAK


$(CODie__DotNetVersion)
true
Default
service-worker-assets.js

### Expected behavior

this should only run when something has actually changed in the inputs

### Actual behavior

it runs on every build

### Regression?

_No response_

### Known Workarounds

_No response_

### Configuration

.net 10.0.0.101
windows 11 pro 25h2 26200.7462
VS 2026 18.1.0

### Other information

_No response_