fix: dashboard reprint slot-shift, startup IP log, resonance compensation toggle

- Dashboard reprint now delegates to _start_print with gcode_filaments from DB
  so the used_paint_indices filter applies correctly (Issue #84)
- Startup log no longer shows 0.0.0.0 — actual LAN IP is displayed (Issue #86)
- New vibration_compensation setting: toggle in Settings UI activates resonance
  compensation before each print, follows exact auto_leveling pattern (Issue #85)

web/themes/default/index.html

@@ -509,6 +509,10 @@
                 <input type="checkbox" id="s-auto-leveling" style="width:auto;margin:0">
                 <label id="lbl-auto-leveling" style="margin:0;cursor:pointer" for="s-auto-leveling">Auto-Leveling vor Druck</label>
               </div>
+              <div class="modal-field" style="flex-direction:row;align-items:center;gap:10px">
+                <input type="checkbox" id="s-vibration-compensation" style="width:auto;margin:0">
+                <label id="lbl-vibration-compensation" style="margin:0;cursor:pointer" for="s-vibration-compensation">Resonance compensation before print</label>
+              </div>
               <div class="modal-field">
                 <label id="lbl-file-ready-mode">Nach Upload: Druckstart-Verhalten</label>
                 <select id="s-file-ready-mode">