Extract Vue frontend into separate container and add stp_wasm crate

Move Vue app from nginx/vue/ to top-level vue/ with its own Dockerfile,
update docker-compose configs and nginx proxy to serve from the new
container, and add initial Rust WASM crate (stp_wasm). Also fix .gitignore
to exclude Rust target/ directories.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

vue/src/views/CV/Project.vue

@@ -0,0 +1,17 @@
+<script setup></script>
+
+<template>
+    <div class="flex-row flex">
+        <div class="w-2/7 p-5 m-auto">
+            <slot name="left" />
+        </div>
+        <div class="w-full p-2">
+            <div
+                class="flex-row flex place-content-between m-auto place-items-center"
+            >
+                <slot name="top" />
+            </div>
+            <slot />
+        </div>
+    </div>
+</template>