Setup frontend — fonts, SCSS structure, header scroll animation

- Add Bartok font-faces (Regular, Poster, Highlight)
- Structure SCSS with reset, variables, global, header, home partials
- Build fixed header with characters SVG and scroll-driven offset animation
- Add home template wiring snippets
- Update .gitignore to track src/ and exclude local/

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

assets/js/script.js

@@ -0,0 +1,12 @@
+document.addEventListener("DOMContentLoaded", () => {
+  function updateCharactersOffset() {
+    const charactersWrapper = document.querySelector(".characters");
+    const MAX_OFFSET = 7;
+    const SPEED = 0.6;
+
+    const topSpace = Math.max(0, MAX_OFFSET - (window.scrollY / 16) * SPEED);
+    charactersWrapper.style.setProperty("--offset", topSpace + "rem");
+  }
+
+  window.addEventListener("scroll", updateCharactersOffset);
+});