Initial import: shopdb-flask multi-site asset platform

Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin
framework so sister GE Aerospace sites can adopt it. Product version
0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests.

Key entry points:
- docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook
  (own-site and subpath deployment methods)
- docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify
- docs/IMPORT-API.md - schema-agnostic legacy data import contract
- scripts/site_imports/wjf/ - West Jefferson reference import loader
- docs/adr/ - twelve accepted architecture decision records

frontend/src/components/PaginationBar.vue

@@ -0,0 +1,83 @@
+<template>
+  <div class="pagination-bar" v-if="totalPages > 1 || showPerPage">
+    <div class="pagination-info">
+      <select
+        v-if="showPerPage"
+        :value="perPage"
+        class="perpage-select"
+        @change="$emit('update:perPage', Number($event.target.value))"
+      >
+        <option v-for="opt in perPageOptions" :key="opt" :value="opt">
+          {{ opt }} per page
+        </option>
+      </select>
+    </div>
+
+    <div class="pagination" v-if="totalPages > 1">
+      <button :disabled="page === 1" @click="$emit('update:page', page - 1)">
+        Prev
+      </button>
+
+      <button
+        v-for="p in visiblePages"
+        :key="p"
+        :class="{ active: p === page, ellipsis: p === '...' }"
+        :disabled="p === '...'"
+        @click="p !== '...' && $emit('update:page', p)"
+      >
+        {{ p }}
+      </button>
+
+      <button :disabled="page === totalPages" @click="$emit('update:page', page + 1)">
+        Next
+      </button>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { computed } from 'vue'
+
+const props = defineProps({
+  page: { type: Number, required: true },
+  totalPages: { type: Number, required: true },
+  perPage: { type: Number, default: 20 },
+  showPerPage: { type: Boolean, default: true }
+})
+
+defineEmits(['update:page', 'update:perPage'])
+
+const perPageOptions = [10, 20, 50, 100]
+
+const visiblePages = computed(() => {
+  const total = props.totalPages
+  const current = props.page
+  const pages = []
+
+  if (total <= 7) {
+    for (let i = 1; i <= total; i++) pages.push(i)
+    return pages
+  }
+
+  pages.push(1)
+
+  if (current > 3) {
+    pages.push('...')
+  }
+
+  const start = Math.max(2, current - 1)
+  const end = Math.min(total - 1, current + 1)
+
+  for (let i = start; i <= end; i++) {
+    pages.push(i)
+  }
+
+  if (current < total - 2) {
+    pages.push('...')
+  }
+
+  pages.push(total)
+
+  return pages
+})
+</script>