#196 Update build configuration and workflows for enhanced local publ… (#275)

#196 Update build configuration and workflows for enhanced local
publishing and sample builds

- Add `mavenLocal()` to repository configuration in sample projects.
- Update dependencies to distinguish between `mcp.kotlin.client` and
`mcp.kotlin.server`.
- Include `JAVA_OPTS` for optimized memory usage in GitHub workflow.
- Enhance build workflow to include local publishing and build steps for
sample projects.
- Add package-lock.json for Kotlin JS/WASM Store
- Switch to SNAPSHOT versions by default

## Motivation and Context

#196 Samples MUST be validated as part of the build

## How Has This Been Tested?

```sh
./gradlew :kotlin-sdk-core:publishToMavenLocal
./gradlew :kotlin-sdk-client:publishToMavenLocal
./gradlew :kotlin-sdk-server:publishToMavenLocal
( cd ./samples/kotlin-mcp-client && ./../../gradlew clean build )
( cd ./samples/kotlin-mcp-server && ./../../gradlew clean build )
( cd ./samples/weather-stdio-server && ./../../gradlew clean build )
```

## Breaking Changes
<!-- Will users need to update their code or configurations? -->

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [ ] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

## Additional context
<!-- Add any other context, implementation notes, or design decisions
-->

gradle.properties

@@ -7,6 +7,8 @@ org.jetbrains.dokka.experimental.gradle.pluginMode.noWarn=true
 # Kotlin
 kotlin.code.style=official
 kotlin.daemon.jvmargs=-Xmx4G
+# Build JS targets using npm package manager https://kotlinlang.org/docs/js-project-setup.html#npm-dependencies
+kotlin.js.yarn=false
 # MPP
 kotlin.mpp.enableCInteropCommonization=true
 kotlin.native.ignoreDisabledTargets=true