feat: add one-click nudge system with popover, throttling, and email notifications (Story 3.2)

Add NudgeController with 1-hour throttling per declaration, NudgePopover component
on declarations index and dashboard, shadcn-vue popover primitives, and per-declaration
nudge tracking. Owners/managers can nudge assigned workers with one click.
Includes 10 feature tests covering authorization, throttling, and cache invalidation.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

resources/js/components/declarations/NudgePopover.vue

@@ -0,0 +1,68 @@
+<script setup lang="ts">
+import { useForm } from '@inertiajs/vue3';
+import { Send } from 'lucide-vue-next';
+import { ref } from 'vue';
+import { Button } from '@/components/ui/button';
+import {
+    Popover,
+    PopoverContent,
+    PopoverTrigger,
+} from '@/components/ui/popover';
+
+type Props = {
+    assigneeName: string | null;
+    nudgeUrl: string;
+};
+
+const props = defineProps<Props>();
+
+const open = ref(false);
+const form = useForm({});
+
+function sendNudge() {
+    form.post(props.nudgeUrl, {
+        preserveScroll: true,
+        onSuccess: () => {
+            open.value = false;
+        },
+    });
+}
+</script>
+
+<template>
+    <Popover v-model:open="open">
+        <PopoverTrigger as-child>
+            <Button
+                variant="ghost"
+                size="icon"
+                class="h-8 w-8"
+                @click.stop
+            >
+                <Send class="h-4 w-4" />
+            </Button>
+        </PopoverTrigger>
+        <PopoverContent
+            class="w-64"
+            align="end"
+            @click.stop
+        >
+            <div class="space-y-3">
+                <p class="text-sm">
+                    Envoyer une relance à
+                    <span class="font-medium">{{
+                        assigneeName ?? 'Non assigné'
+                    }}</span>
+                </p>
+                <Button
+                    class="w-full"
+                    size="sm"
+                    :disabled="form.processing || !assigneeName"
+                    @click="sendNudge"
+                >
+                    <Send class="mr-2 h-4 w-4" />
+                    Envoyer une relance
+                </Button>
+            </div>
+        </PopoverContent>
+    </Popover>
+</template>