Add link to git tea source page in corner

- Increase text thickness to 2.3mm (base 2.0mm + 0.3mm inset compensation)
- Adjust text Z offset to 2.7mm to inset text into background
- Add offset() call for text layers to create interference fit
- Total height remains at 5mm

webapp/src/App.css

@@ -36,6 +36,22 @@ main {
 
 header {
   text-align: center;
+  position: relative;
+}
+
+.git-link {
+  position: absolute;
+  top: 0;
+  right: 0;
+  font-size: 0.75rem;
+  color: var(--text-muted);
+  text-decoration: none;
+  opacity: 0.6;
+  transition: opacity 0.2s;
+}
+
+.git-link:hover {
+  opacity: 1;
 }
 
 header h1 {

webapp/src/App.jsx

@@ -93,6 +93,7 @@ function App() {
       <header>
         <h1><Md3dRotation className="icon-spin" /> SVG to Nametag Converter</h1>
         <p>Powered by WebAssembly & Manifold 3D</p>
+        <a href="https://warehouse.randomhack.com/unfunny/svg2NameTag-Ren/src/branch/web-app/" target="_blank" rel="noopener noreferrer" className="git-link">View Source</a>
       </header>
 
       <main>

webapp/src/logic/useNametagConverter.js

@@ -138,14 +138,20 @@ export const convertFile = async (file, manifold, addLog) => {
     });
 
     // 3. Extrusion Helper using Manifold
-    const createMeshBlob = (loopsList, height, z) => {
+    const createMeshBlob = (loopsList, height, z, isText = false) => {
         const allContours = loopsList.flat();
 
         if (allContours.length === 0) return null;
 
         // Create CrossSection with Even-Odd rule
         // Correct usage: new CrossSection(contours, fillRule)
-        const cs = new CrossSection(allContours, 'EvenOdd');
+        let cs = new CrossSection(allContours, 'EvenOdd');
+
+        // Inset text for better adhesion (only for text layers)
+        if (isText) {
+            const INSET = -0.3; // mm
+            cs = cs.offset(INSET);
+        }
 
         // Extrude
         const mesh = Manifold.extrude(cs, height, 0, 0, [1, 1]);
@@ -162,13 +168,13 @@ export const convertFile = async (file, manifold, addLog) => {
 
     // Constants
     const BG_THICK = 3.0;
-    const TXT_THICK = 2.0;
-    const TXT_Z = 3.0; // Starts at 3mm, Center at 4mm
+    const TXT_THICK = 2.3; // 2.0 + 0.3mm inset compensation
+    const TXT_Z = 2.7; // Text is inset into background for better adhesion
 
     return {
-        black: createMeshBlob(paths.black, BG_THICK, 0),
-        white: createMeshBlob(paths.white, TXT_THICK, TXT_Z),
-        cyan: createMeshBlob(paths.cyan, TXT_THICK, TXT_Z)
+        black: createMeshBlob(paths.black, BG_THICK, 0, false),
+        white: createMeshBlob(paths.white, TXT_THICK, TXT_Z, true),
+        cyan: createMeshBlob(paths.cyan, TXT_THICK, TXT_Z, true)
     };
 };