feat(badges): rainbow animation option for punch-out hole markers

Adds left/right/center_rainbow to punch_holes cfg_json. When enabled,
applies a CSS hue-rotate animation (2.5s loop) to the marker div using
a saturated red base color so the full visible spectrum appears. Template
form shows a Rainbow checkbox per slot; hides color pickers when active.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/ae_events/types/ae_badge_template_cfg.ts

@@ -64,14 +64,17 @@ export interface BadgeTemplateCfg {
         left?: boolean;
         right?: boolean;
         center?: boolean;
-        fg?: string;         // shared fallback stroke/line color
+        fg?: string;             // shared fallback stroke/line color
-        bg?: string;         // shared fallback fill color
+        bg?: string;             // shared fallback fill color
         left_fg?: string;
         left_bg?: string;
+        left_rainbow?: boolean;  // animated hue-rotate; overrides fg/bg base color with saturated red
         right_fg?: string;
         right_bg?: string;
+        right_rainbow?: boolean;
         center_fg?: string;
         center_bg?: string;
+        center_rainbow?: boolean;
     };
 
     // Allow arbitrary extra keys to preserve forward-compatibility.

src/routes/events/[event_id]/(badges)/badges/[badge_id]/ae_comp__badge_obj_view.svelte

@@ -333,16 +333,23 @@ let punch_holes_right  = $derived(!!template_cfg?.punch_holes?.right);
 let punch_holes_center = $derived(!!template_cfg?.punch_holes?.center);
 
 // Per-slot colors: slot-specific override → shared fallback → component default.
-const PH_DEFAULT_FG = '#777777';
+// When rainbow is on and no explicit fg/bg is set, use a saturated base color so
-const PH_DEFAULT_BG = 'rgba(255,255,255,0.4)';
+// hue-rotate produces a full visible spectrum (gray has no hue to rotate).
+const PH_DEFAULT_FG  = '#777777';
+const PH_DEFAULT_BG  = 'rgba(255,255,255,0.4)';
+const PH_RAINBOW_FG  = '#ff2200'; // saturated red → full spectrum via hue-rotate
+const PH_RAINBOW_BG  = 'rgba(255,34,0,0.25)';
+let punch_holes_left_rainbow   = $derived(!!template_cfg?.punch_holes?.left_rainbow);
+let punch_holes_right_rainbow  = $derived(!!template_cfg?.punch_holes?.right_rainbow);
+let punch_holes_center_rainbow = $derived(!!template_cfg?.punch_holes?.center_rainbow);
 let punch_holes_colors = $derived.by(() => {
     const ph = template_cfg?.punch_holes;
     const shared_fg = ph?.fg || PH_DEFAULT_FG;
     const shared_bg = ph?.bg || PH_DEFAULT_BG;
     return {
-        left:   { fg: ph?.left_fg   || shared_fg, bg: ph?.left_bg   || shared_bg },
+        left:   { fg: ph?.left_fg   || (ph?.left_rainbow   ? PH_RAINBOW_FG : shared_fg), bg: ph?.left_bg   || (ph?.left_rainbow   ? PH_RAINBOW_BG : shared_bg) },
-        right:  { fg: ph?.right_fg  || shared_fg, bg: ph?.right_bg  || shared_bg },
+        right:  { fg: ph?.right_fg  || (ph?.right_rainbow  ? PH_RAINBOW_FG : shared_fg), bg: ph?.right_bg  || (ph?.right_rainbow  ? PH_RAINBOW_BG : shared_bg) },
-        center: { fg: ph?.center_fg || shared_fg, bg: ph?.center_bg || shared_bg }
+        center: { fg: ph?.center_fg || (ph?.center_rainbow ? PH_RAINBOW_FG : shared_fg), bg: ph?.center_bg || (ph?.center_rainbow ? PH_RAINBOW_BG : shared_bg) }
     };
 });
 
@@ -694,6 +701,7 @@ const code_to_icon: {
                  registration variance (slots are only 3mm tall, registration matters). -->
             {#if punch_holes_left}
                 <div class="punch_hole_marker pointer-events-none absolute"
+                     class:punch_hole_rainbow={punch_holes_left_rainbow}
                      aria-hidden="true"
                      style="top: calc(0.25in + 1mm); left: calc(0.375in + 1mm); width: calc(0.625in - 2mm); height: calc(0.125in - 2mm); z-index: 10;">
                     <svg width="100%" height="100%" viewBox="0 0 50 8" preserveAspectRatio="none" xmlns="http://www.w3.org/2000/svg">
@@ -705,6 +713,7 @@ const code_to_icon: {
             {/if}
             {#if punch_holes_right}
                 <div class="punch_hole_marker pointer-events-none absolute"
+                     class:punch_hole_rainbow={punch_holes_right_rainbow}
                      aria-hidden="true"
                      style="top: calc(0.25in + 1mm); right: calc(0.375in + 1mm); width: calc(0.625in - 2mm); height: calc(0.125in - 2mm); z-index: 10;">
                     <svg width="100%" height="100%" viewBox="0 0 50 8" preserveAspectRatio="none" xmlns="http://www.w3.org/2000/svg">
@@ -716,6 +725,7 @@ const code_to_icon: {
             {/if}
             {#if punch_holes_center}
                 <div class="punch_hole_marker pointer-events-none absolute"
+                     class:punch_hole_rainbow={punch_holes_center_rainbow}
                      aria-hidden="true"
                      style="top: calc(0.25in + 1mm); left: 50%; transform: translateX(-50%); width: calc(0.625in - 2mm); height: calc(0.125in - 2mm); z-index: 10;">
                     <svg width="100%" height="100%" viewBox="0 0 50 8" preserveAspectRatio="none" xmlns="http://www.w3.org/2000/svg">
@@ -1325,6 +1335,20 @@ const code_to_icon: {
 
 
 <style>
+/*
+ * Punch-hole rainbow animation: continuously rotates the hue of the marker div.
+ * A saturated base color (PH_RAINBOW_FG) is used so the full visible spectrum appears.
+ * On print the animation freezes at whatever frame the browser captures — this is fine,
+ * the marker still shows in some vivid color and remains within the hole boundary.
+ */
+@keyframes ae_punch_hole_rainbow {
+    from { filter: hue-rotate(0deg); }
+    to   { filter: hue-rotate(360deg); }
+}
+.punch_hole_rainbow {
+    animation: ae_punch_hole_rainbow 2.5s linear infinite;
+}
+
 /*
      * Force light-mode rendering on the badge print area.
      * Badges print on physical card stock (white by default, or a defined color set by

src/routes/events/[event_id]/(badges)/templates/ae_comp__badge_template_form.svelte

@@ -76,13 +76,16 @@ let cfg_header_padding_left   = $state('');
 let cfg_punch_holes_left = $state(false);
 let cfg_punch_holes_right = $state(false);
 let cfg_punch_holes_center = $state(false);
-// Per-slot colors. Empty = use component default (#777777 fg, semi-transparent white bg).
+// Per-slot colors and rainbow. Empty color = use component default.
-let cfg_punch_holes_left_fg = $state('');
+let cfg_punch_holes_left_fg      = $state('');
-let cfg_punch_holes_left_bg = $state('');
+let cfg_punch_holes_left_bg      = $state('');
-let cfg_punch_holes_right_fg = $state('');
+let cfg_punch_holes_left_rainbow = $state(false);
-let cfg_punch_holes_right_bg = $state('');
+let cfg_punch_holes_right_fg      = $state('');
-let cfg_punch_holes_center_fg = $state('');
+let cfg_punch_holes_right_bg      = $state('');
-let cfg_punch_holes_center_bg = $state('');
+let cfg_punch_holes_right_rainbow = $state(false);
+let cfg_punch_holes_center_fg      = $state('');
+let cfg_punch_holes_center_bg      = $state('');
+let cfg_punch_holes_center_rainbow = $state(false);
 // Header bottom border. Empty color = no border.
 let cfg_header_border_color = $state('');
 let cfg_header_border_width = $state('');
@@ -185,12 +188,15 @@ async function load_template(id: string) {
             cfg_punch_holes_left   = parsed_cfg?.punch_holes?.left   ?? false;
             cfg_punch_holes_right  = parsed_cfg?.punch_holes?.right  ?? false;
             cfg_punch_holes_center = parsed_cfg?.punch_holes?.center ?? false;
-            cfg_punch_holes_left_fg   = parsed_cfg?.punch_holes?.left_fg   ?? '';
+            cfg_punch_holes_left_fg      = parsed_cfg?.punch_holes?.left_fg      ?? '';
-            cfg_punch_holes_left_bg   = parsed_cfg?.punch_holes?.left_bg   ?? '';
+            cfg_punch_holes_left_bg      = parsed_cfg?.punch_holes?.left_bg      ?? '';
-            cfg_punch_holes_right_fg  = parsed_cfg?.punch_holes?.right_fg  ?? '';
+            cfg_punch_holes_left_rainbow = parsed_cfg?.punch_holes?.left_rainbow ?? false;
-            cfg_punch_holes_right_bg  = parsed_cfg?.punch_holes?.right_bg  ?? '';
+            cfg_punch_holes_right_fg      = parsed_cfg?.punch_holes?.right_fg      ?? '';
-            cfg_punch_holes_center_fg = parsed_cfg?.punch_holes?.center_fg ?? '';
+            cfg_punch_holes_right_bg      = parsed_cfg?.punch_holes?.right_bg      ?? '';
-            cfg_punch_holes_center_bg = parsed_cfg?.punch_holes?.center_bg ?? '';
+            cfg_punch_holes_right_rainbow = parsed_cfg?.punch_holes?.right_rainbow ?? false;
+            cfg_punch_holes_center_fg      = parsed_cfg?.punch_holes?.center_fg      ?? '';
+            cfg_punch_holes_center_bg      = parsed_cfg?.punch_holes?.center_bg      ?? '';
+            cfg_punch_holes_center_rainbow = parsed_cfg?.punch_holes?.center_rainbow ?? false;
             cfg_header_border_color = parsed_cfg.header_border_color ?? '';
             cfg_header_border_width = parsed_cfg.header_border_width ?? '';
             cfg_header_padding_top    = parsed_cfg.header_padding_top    ?? '';
@@ -282,12 +288,15 @@ async function handle_submit() {
             right:  cfg_punch_holes_right,
             center: cfg_punch_holes_center
         };
-        if (cfg_punch_holes_left_fg.trim())   ph.left_fg   = cfg_punch_holes_left_fg.trim();
+        if (cfg_punch_holes_left_fg.trim())    ph.left_fg       = cfg_punch_holes_left_fg.trim();
-        if (cfg_punch_holes_left_bg.trim())   ph.left_bg   = cfg_punch_holes_left_bg.trim();
+        if (cfg_punch_holes_left_bg.trim())    ph.left_bg       = cfg_punch_holes_left_bg.trim();
-        if (cfg_punch_holes_right_fg.trim())  ph.right_fg  = cfg_punch_holes_right_fg.trim();
+        if (cfg_punch_holes_left_rainbow)      ph.left_rainbow  = true;
-        if (cfg_punch_holes_right_bg.trim())  ph.right_bg  = cfg_punch_holes_right_bg.trim();
+        if (cfg_punch_holes_right_fg.trim())   ph.right_fg      = cfg_punch_holes_right_fg.trim();
-        if (cfg_punch_holes_center_fg.trim()) ph.center_fg = cfg_punch_holes_center_fg.trim();
+        if (cfg_punch_holes_right_bg.trim())   ph.right_bg      = cfg_punch_holes_right_bg.trim();
-        if (cfg_punch_holes_center_bg.trim()) ph.center_bg = cfg_punch_holes_center_bg.trim();
+        if (cfg_punch_holes_right_rainbow)     ph.right_rainbow = true;
+        if (cfg_punch_holes_center_fg.trim())  ph.center_fg       = cfg_punch_holes_center_fg.trim();
+        if (cfg_punch_holes_center_bg.trim())  ph.center_bg       = cfg_punch_holes_center_bg.trim();
+        if (cfg_punch_holes_center_rainbow)    ph.center_rainbow  = true;
         cfg_obj.punch_holes = ph;
     } else {
         delete cfg_obj.punch_holes;
@@ -431,35 +440,43 @@ function toggle_cfg_controls_auth_editable(key: string) {
                         Markers help attendees know where to push out the perforations.
                         Leave colors blank to use defaults (gray stroke, semi-transparent white fill).
                     </p>
-                    {#snippet hole_colors(label: string, enabled: boolean, fg: string, bg: string, on_fg: (v: string) => void, on_bg: (v: string) => void)}
+                    {#snippet hole_colors(label: string, enabled: boolean, fg: string, bg: string, rainbow: boolean, on_fg: (v: string) => void, on_bg: (v: string) => void, on_rainbow: (v: boolean) => void)}
                         <div class="space-y-1 rounded border border-surface-200-800 p-2">
                             <label class="label flex items-center gap-2 font-medium">
                                 <input type="checkbox" checked={enabled} onchange={(e) => { if (e.target instanceof HTMLInputElement) { if (label === 'Left') cfg_punch_holes_left = e.target.checked; else if (label === 'Right') cfg_punch_holes_right = e.target.checked; else cfg_punch_holes_center = e.target.checked; } }} class="checkbox" />
                                 <span>{label} slot</span>
                             </label>
                             {#if enabled}
-                                <div class="grid grid-cols-2 gap-2 pl-6">
+                                <div class="pl-6 space-y-2">
-                                    <label class="label">
+                                    <label class="label flex items-center gap-2">
-                                        <span class="text-xs">Stroke / line (fg)</span>
+                                        <input type="checkbox" checked={rainbow} onchange={(e) => { if (e.target instanceof HTMLInputElement) on_rainbow(e.target.checked); }} class="checkbox" />
-                                        <div class="flex items-center gap-1">
+                                        <span class="text-sm">🌈 Rainbow</span>
-                                            <input type="color" value={fg || '#777777'} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_fg(e.target.value); }} class="w-8 h-7 p-0" />
-                                            <input type="text" value={fg} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_fg(e.target.value); }} class="input input-sm w-24" placeholder="#777777" />
-                                        </div>
                                     </label>
-                                    <label class="label">
+                                    {#if !rainbow}
-                                        <span class="text-xs">Fill (bg)</span>
+                                        <div class="grid grid-cols-2 gap-2">
-                                        <div class="flex items-center gap-1">
+                                            <label class="label">
-                                            <input type="color" value={bg || '#ffffff'} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_bg(e.target.value); }} class="w-8 h-7 p-0" />
+                                                <span class="text-xs">Stroke / line (fg)</span>
-                                            <input type="text" value={bg} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_bg(e.target.value); }} class="input input-sm w-24" placeholder="#ffffff" />
+                                                <div class="flex items-center gap-1">
+                                                    <input type="color" value={fg || '#777777'} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_fg(e.target.value); }} class="w-8 h-7 p-0" />
+                                                    <input type="text" value={fg} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_fg(e.target.value); }} class="input input-sm w-24" placeholder="#777777" />
+                                                </div>
+                                            </label>
+                                            <label class="label">
+                                                <span class="text-xs">Fill (bg)</span>
+                                                <div class="flex items-center gap-1">
+                                                    <input type="color" value={bg || '#ffffff'} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_bg(e.target.value); }} class="w-8 h-7 p-0" />
+                                                    <input type="text" value={bg} oninput={(e) => { if (e.target instanceof HTMLInputElement) on_bg(e.target.value); }} class="input input-sm w-24" placeholder="#ffffff" />
+                                                </div>
+                                            </label>
                                         </div>
-                                    </label>
+                                    {/if}
                                 </div>
                             {/if}
                         </div>
                     {/snippet}
-                    {@render hole_colors('Left',   cfg_punch_holes_left,   cfg_punch_holes_left_fg,   cfg_punch_holes_left_bg,   (v) => cfg_punch_holes_left_fg = v,   (v) => cfg_punch_holes_left_bg = v)}
+                    {@render hole_colors('Left',   cfg_punch_holes_left,   cfg_punch_holes_left_fg,   cfg_punch_holes_left_bg,   cfg_punch_holes_left_rainbow,   (v) => cfg_punch_holes_left_fg = v,   (v) => cfg_punch_holes_left_bg = v,   (v) => cfg_punch_holes_left_rainbow = v)}
-                    {@render hole_colors('Right',  cfg_punch_holes_right,  cfg_punch_holes_right_fg,  cfg_punch_holes_right_bg,  (v) => cfg_punch_holes_right_fg = v,  (v) => cfg_punch_holes_right_bg = v)}
+                    {@render hole_colors('Right',  cfg_punch_holes_right,  cfg_punch_holes_right_fg,  cfg_punch_holes_right_bg,  cfg_punch_holes_right_rainbow,  (v) => cfg_punch_holes_right_fg = v,  (v) => cfg_punch_holes_right_bg = v,  (v) => cfg_punch_holes_right_rainbow = v)}
-                    {@render hole_colors('Center', cfg_punch_holes_center, cfg_punch_holes_center_fg, cfg_punch_holes_center_bg, (v) => cfg_punch_holes_center_fg = v, (v) => cfg_punch_holes_center_bg = v)}
+                    {@render hole_colors('Center', cfg_punch_holes_center, cfg_punch_holes_center_fg, cfg_punch_holes_center_bg, cfg_punch_holes_center_rainbow, (v) => cfg_punch_holes_center_fg = v, (v) => cfg_punch_holes_center_bg = v, (v) => cfg_punch_holes_center_rainbow = v)}
                 </div>
 
                 <label class="label">