fix(seed/docker): repair production symbol loss incident

public/signaturen/Oberflurhydrant.svg

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   version="1.1"
+   id="svg1"
+   width="50.141197"
+   height="49.563999"
+   viewBox="0 0 50.141197 49.563999"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs1" />
+  <g
+     id="g1"
+     transform="translate(-16.504133,-3.6960013)">
+    <path
+       id="path1"
+       d="m 311.801,134.82 c 43.527,0 78.808,35.301 78.808,78.809 0,43.512 -35.281,78.781 -78.808,78.781 -43.492,0 -78.789,-35.269 -78.789,-78.781 0,-43.508 35.297,-78.809 78.789,-78.809"
+       style="fill:#231f20;fill-opacity:1;fill-rule:nonzero;stroke:none"
+       transform="matrix(0.13333333,0,0,-0.13333333,0,56.96)" />
+    <path
+       id="path2"
+       d="m 494.84,213.621 c 0,-99.91 -81.942,-180.871 -183.039,-180.871 -101.071,0 -183.02,80.961 -183.02,180.871 0,99.879 81.949,180.859 183.02,180.859 101.097,0 183.039,-80.98 183.039,-180.859 z"
+       style="fill:none;stroke:#231f20;stroke-width:10;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:2;stroke-dasharray:none;stroke-opacity:1"
+       transform="matrix(0.13333333,0,0,-0.13333333,0,56.96)" />
+  </g>
+</svg>