Add stray editor backup of the document icon

Committed on request as part of "commit everything". This looks like an
editor save-a-copy artefact from 2026-07-26 rather than an intended asset:
nothing references the filename, and it differs from the document.svg it sits
beside (1426 vs 420 bytes). Safe to revert this commit alone if so.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nux3LCu4zP9nih4BRhPyHw

frontend/icons/document.svg.2026_07_26_14_31_37.0.svg

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="26"
+   height="26"
+   viewBox="0 0 24 24"
+   fill="none"
+   version="1.1"
+   id="svg3"
+   sodipodi:docname="document.svg"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs3" />
+  <sodipodi:namedview
+     id="namedview3"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1" />
+  <rect
+     style="fill:#333333;stroke-width:2.53985;stroke-linecap:round"
+     id="rect3"
+     width="13.26046"
+     height="4.0990605"
+     x="2.8693423"
+     y="1.8650727" />
+  <path
+     d="m 6,2.4795047 h 7 l 6,5.5 V 20.979505 a 1.5,1.5 0 0 1 -1.5,1.5 h -11 a 1.5,1.5 0 0 1 -1.5,-1.5 V 3.9795047 a 1.5,1.5 0 0 1 1,-1.5 z"
+     fill="#2563eb"
+     opacity="0.15"
+     id="path1"
+     style="fill:#25eb33;fill-opacity:1" />
+  <path
+     d="M13 2.5L19 8h-4.5A1.5 1.5 0 0 1 13 6.5V2.5z"
+     fill="#2563eb"
+     opacity="0.4"
+     id="path2"
+     style="fill:#2beb25;fill-opacity:1" />
+  <path
+     d="M8 12.5h8M8 15.5h8M8 18.5h5"
+     stroke="#2563eb"
+     stroke-width="1.3"
+     stroke-linecap="round"
+     id="path3" />
+</svg>