Initial commit: Basic Yew frontend template

- Set up Cargo.toml with Yew dependencies
- Created main.rs entry point
- Added basic App component with counter functionality
- Included HTML template with styling
- Added Trunk.toml for build configuration

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

target/debug/build/rustversion-518ce2da591cb97b/output

@@ -0,0 +1,3 @@
+cargo:rerun-if-changed=build/build.rs
+cargo:rustc-check-cfg=cfg(cfg_macro_not_allowed)
+cargo:rustc-check-cfg=cfg(host_os, values("windows"))