chore(i18n): finalize round-6 keys for batch/cache/endpoint/usage

Adds the remaining keys produced by parallel agents A4, A6, A8, A9:
- common: batch-related labels (BatchDetailModal, BatchListTab,
  FileDetailModal, FilesListTab, page) + profile/leaderboard
- cache: hit rate, latency, retry, avg chars
- endpoint: token saver, API endpoints, copy URL, cloud/local labels
- usage: noSpend, activeSessions, quotaAlerts, budget timing
- skills: install/marketplace/filter
- proxyRegistry/quotaShare/mcpDashboard: misc labels

Hardcoded total: 60 → 48. Real missing keys: 0 (modePack remaining is a
false positive — combos.modePack exists but the audit can't resolve it
since IntelligentComboPanel receives t as a prop).

src/app/(dashboard)/dashboard/batch/FilesListTab.tsx

@@ -131,7 +131,7 @@ export default function FilesListTab({
       <div className="flex flex-wrap gap-3 p-4 rounded-xl bg-[var(--color-surface)] border border-[var(--color-border)]">
         <input
           type="text"
-          placeholder="Search by ID or filename…"
+          placeholder={t("batchFilesListSearchPlaceholder")}
           value={searchQuery}
           onChange={(e) => setSearchQuery(e.target.value)}
           className="flex-1 min-w-[200px] px-3 py-2 rounded-lg text-sm bg-[var(--color-bg)] border border-[var(--color-border)] text-[var(--color-text-main)] placeholder:text-[var(--color-text-muted)] focus:outline-2 focus:outline-[var(--color-accent)]"
@@ -151,7 +151,7 @@ export default function FilesListTab({
 
       {/* Table */}
       <div className="overflow-x-auto overflow-y-hidden rounded-xl border border-[var(--color-border)]">
-        <table className="w-full text-sm" role="table" aria-label="Files">
+        <table className="w-full text-sm" role="table" aria-label={t("batchFilesListFilesTable")}>
           <thead>
             <tr className="bg-[var(--color-bg-alt)] border-b border-[var(--color-border)]">
               <th className="text-left px-4 py-3 font-medium text-[var(--color-text-muted)] uppercase text-xs tracking-wider">

src/app/(dashboard)/dashboard/batch/page.tsx

@@ -1,12 +1,14 @@
 "use client";
 
 import { useState, useEffect, useCallback, useRef } from "react";
+import { useTranslations } from "next-intl";
 import BatchListTab from "./BatchListTab";
 import { FileRecord } from "@/lib/db/files";
 import { BatchRecord } from "@/lib/db/batches";
 import { mapBatchApiToRecord, mapFileApiToRecord } from "./batch-utils";
 
 export default function BatchPage() {
+  const t = useTranslations("common");
   const [batches, setBatches] = useState<BatchRecord[]>([]);
   const [files, setFiles] = useState<FileRecord[]>([]);
   const [batchesTotal, setBatchesTotal] = useState(0);
@@ -174,7 +176,7 @@ export default function BatchPage() {
           onRefresh={() => fetchData(false)}
         />
         {loadingMore && batchesCount > 0 && (
-          <div className="text-center text-sm">Loading more…</div>
+          <div className="text-center text-sm">{t("batchPageLoadingMore")}</div>
         )}
         <div ref={bottomRefBatches} className="h-10" />
       </div>

src/app/(dashboard)/dashboard/cache/components/IdempotencyLayer.tsx

@@ -62,7 +62,7 @@ export default function IdempotencyLayer({
               <button
                 onClick={onRetry}
                 className="self-start text-sm px-3 py-1 rounded bg-surface/50 hover:bg-surface/80 transition-colors"
-                aria-label="Retry"
+                aria-label={t("retry")}
               >
                 Retry
               </button>

src/app/(dashboard)/dashboard/cache/components/ReasoningCacheTab.tsx

@@ -336,7 +336,7 @@ export default function ReasoningCacheTab() {
                 <tr className="border-b border-border/20 text-left text-[11px] uppercase tracking-[0.12em] text-text-muted">
                   <th className="px-4 py-3">Model</th>
                   <th className="px-4 py-3">{t("reasoningEntries")}</th>
-                  <th className="px-4 py-3">Avg Chars</th>
+                  <th className="px-4 py-3">{t("reasoningAvgChars")}</th>
                   <th className="px-4 py-3">{t("reasoningChars")}</th>
                 </tr>
               </thead>

src/app/(dashboard)/dashboard/endpoint/EndpointPageClient.tsx

@@ -1335,7 +1335,7 @@ export default function APIPageClient({ machineId }: Readonly<APIPageClientProps
               cloud
             </span>
             <div className="flex-1 min-w-0">
-              <span className="text-sm font-medium">Cloud OmniRoute</span>
+              <span className="text-sm font-medium">{t("cloudOmniroute")}</span>
             </div>
             <span
               className={`inline-flex items-center gap-1.5 px-2 py-0.5 rounded-full text-xs font-medium border shrink-0 ${
@@ -2387,7 +2387,7 @@ function EndpointCard({
         <button
           onClick={() => void copy(fullUrl, copyId)}
           className="shrink-0 flex items-center justify-center size-6 rounded hover:bg-sidebar transition-colors"
-          title="Copy URL"
+          title={t("copyUrl")}
         >
           <span className="material-symbols-outlined text-[12px] text-text-muted">
             {copied === copyId ? "check" : "content_copy"}

src/app/(dashboard)/dashboard/settings/components/ProxyRegistryManager.tsx

@@ -849,7 +849,7 @@ export default function ProxyRegistryManager() {
         onClose={() => {
           if (!bulkSaving) setBulkOpen(false);
         }}
-        title="Bulk Proxy Assignment"
+        title={t("bulkProxyAssignment")}
         maxWidth="lg"
       >
         <div className="flex flex-col gap-3">

src/app/(dashboard)/dashboard/usage/components/BudgetTab.tsx

@@ -960,7 +960,7 @@ function BudgetRowExpanded({
         </div>
         <div className="grid grid-cols-1 md:grid-cols-3 gap-3 items-end">
           <div>
-            <label className="text-[11px] text-text-muted block mb-1">Reset interval</label>
+            <label className="text-[11px] text-text-muted block mb-1">{t("resetInterval")}</label>
             <select
               value={form.resetInterval}
               onChange={(e) =>
@@ -974,7 +974,7 @@ function BudgetRowExpanded({
             </select>
           </div>
           <Input
-            label="Reset time (UTC)"
+            label={t("resetTimeUtc")}
             type="time"
             value={form.resetTime}
             onChange={(e) => setForm({ ...form, resetTime: e.target.value })}

src/i18n/messages/en.json

@@ -702,7 +702,10 @@
     "leaderboardLoading": "Loading leaderboard...",
     "batchFileDetailCopyId": "Copy ID",
     "batchFileDetailClose": "Close",
-    "batchFileDetailFailedToLoad": "Failed to load file contents"
+    "batchFileDetailFailedToLoad": "Failed to load file contents",
+    "batchFilesListSearchPlaceholder": "Search by ID or filename…",
+    "batchFilesListFilesTable": "Files",
+    "batchPageLoadingMore": "Loading more…"
   },
   "sidebar": {
     "home": "Home",
@@ -2505,7 +2508,10 @@
     "apiEndpointsCatalogUnavailable": "API catalog unavailable",
     "apiEndpointsSearchPlaceholder": "Search endpoints...",
     "apiEndpointsRequiresAuth": "Requires auth",
-    "apiEndpointsNoMatch": "No endpoints match your filter"
+    "apiEndpointsNoMatch": "No endpoints match your filter",
+    "localServer": "Local Server",
+    "cloudOmniroute": "Cloud OmniRoute",
+    "copyUrl": "Copy URL"
   },
   "endpoints": {
     "tabProxy": "Endpoint Proxy",
@@ -2724,7 +2730,8 @@
     "q": "Q",
     "filterSkillsPlaceholder": "Filter skills by name, description, or tag",
     "allModes": "All modes",
-    "skillsMarketplace": "Skills Marketplace"
+    "skillsMarketplace": "Skills Marketplace",
+    "installSkill": "Install Skill"
   },
   "health": {
     "title": "System Health",
@@ -5150,7 +5157,8 @@
     "budgetMonthlyDollar": "Monthly $",
     "budgetWarnAtPct": "Warn at %",
     "quotaAlerts": "Quota alerts",
-    "quotaTableRefreshing": "⟳ Refreshing..."
+    "quotaTableRefreshing": "⟳ Refreshing...",
+    "noSpendLast30Days": "No spend in last 30 days"
   },
   "modals": {
     "waitingAuth": "Waiting for Authorization",
@@ -5914,7 +5922,10 @@
     "reasoningNoData": "No reasoning entries cached yet. Entries appear when thinking models use tool calling.",
     "cachePerformanceRetry": "Retry",
     "cachePerformanceHitRate": "Hit Rate",
-    "cachePerformanceAvgLatency": "Avg Latency (ms)"
+    "cachePerformanceAvgLatency": "Avg Latency (ms)",
+    "cachePerformanceP95Latency": "p95 Latency (ms)",
+    "retry": "Retry",
+    "reasoningAvgChars": "Avg Chars"
   },
   "proxyConfigModal": {
     "levelGlobal": "Global",
@@ -6095,7 +6106,8 @@
     "bulkImportErrorInvalidPort": "Invalid PORT (must be 1-65535)",
     "bulkImportErrorInvalidType": "Invalid TYPE (use http, https, or socks5)",
     "bulkImportErrorInvalidStatus": "Invalid STATUS (use active or inactive)",
-    "clearAssignment": "(clear assignment)"
+    "clearAssignment": "(clear assignment)",
+    "bulkProxyAssignment": "Bulk Proxy Assignment"
   },
   "playground": {
     "title": "Model Playground",