Add WASM parser and Vue dissector UI.

Ship a working HexPigeon: typed binary parsing in Rust/WASM, a three-pane frontend, and unit tests covering the field types.

Co-authored-by: Cursor <cursoragent@cursor.com>

Makefile

@@ -0,0 +1,20 @@
+.PHONY: wasm frontend dev build test clean
+
+wasm:
+	cd parser-wasm && wasm-pack build --target web --out-dir ../frontend/src/wasm
+
+frontend:
+	cd frontend && npm install
+
+dev: wasm frontend
+	cd frontend && npm run dev
+
+build: wasm
+	cd frontend && npm run build
+
+test:
+	cd parser-wasm && cargo test
+	cd frontend && npm install && npm test
+
+clean:
+	rm -rf frontend/src/wasm frontend/dist parser-wasm/target