Update technical report link

Point the Technical Report header link to the OvisOCR2 PDF on GitHub. The frontend asset filename is refreshed to avoid stale browser caches.

dist/assets/{index-uj7s2XQX.js → index-tech-report-20260716.js}

@@ -119,4 +119,4 @@ ${r[c]||""}`).join(`
 
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dist/index.html

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