feat(managed-ne): tag stats cards and bulk ops by tag

Add tags/remark to import template, stats/ids-by-tag APIs, per-tag overview sub-cards, and bulk proxy/connect-test dialogs filtered by tag.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/i18n/en.ts

@@ -144,6 +144,25 @@ const en = {
     keywordPh: "name / IP / user / tags",
     allVendors: "All vendors",
     allConnectStatus: "All connect status",
+    stats: {
+      title: "Overview",
+      total: "{{n}} NEs managed",
+      pass: "Connected",
+      fail: "Failed",
+      unknown: "Untested",
+      testing: "Testing",
+      batchProxy: "Batch add proxy",
+      batchTest: "Batch connect-test",
+      tagFilter: "Filter by tag",
+      all: "All",
+      allTag: "All (no tag filter)",
+      noTag: "No tags",
+      tagStats: "Top tags",
+      confirm: "Apply to {{n}} NE(s). Continue?",
+      proxyDone: "Proxy applied to {{n}} NE(s)",
+      testDone: "Connect-test submitted for {{n}} NE(s)",
+      loadingIds: "Loading…",
+    },
     col: {
       name: "Name",
       vendor: "Vendor",