feat: add dataset review workspace navigation

frontend/src/lib/components/layout/sidebarNavigation.js

@@ -69,6 +69,12 @@ export function buildSidebarCategories(i18nState, user) {
           requiredPermission: "plugin:migration",
           requiredAction: "READ",
         },
+        {
+          label: nav.dataset_review_workspace,
+          path: "/datasets/review",
+          requiredPermission: "plugin:migration",
+          requiredAction: "READ",
+        },
       ],
     },
     {

frontend/src/lib/i18n/locales/en.json

@@ -45,6 +45,7 @@
     "datasets": "Datasets",
     "overview": "Overview",
     "all_datasets": "All Datasets",
+    "dataset_review_workspace": "Review Workspace",
     "health_center": "Health Center",
     "storage": "Storage",
     "backups": "Backups",

frontend/src/lib/i18n/locales/ru.json

@@ -45,6 +45,7 @@
     "datasets": "Датасеты",
     "overview": "Обзор",
     "all_datasets": "Все датасеты",
+    "dataset_review_workspace": "Review Workspace",
     "health_center": "Центр здоровья",
     "storage": "Хранилище",
     "backups": "Бэкапы",

frontend/src/routes/datasets/review/+page.svelte

@@ -0,0 +1,118 @@
+<!-- [DEF:DatasetReviewWorkspaceEntry:Page] -->
+<!-- @COMPLEXITY: 3 -->
+<!-- @SEMANTICS: dataset-review, workspace-entry, source-intake, session-bootstrap -->
+<!-- @PURPOSE: Entry route for Dataset Review Workspace that allows starting a new resumable review session before navigating to a specific session id route. -->
+<!-- @LAYER: UI -->
+<!-- @RELATION: [CALLS] -> [api.postApi()](frontend/src/routes/datasets/review/+page.svelte:66) -->
+<!-- @RELATION: [BINDS_TO] -> [SourceIntakePanel](frontend/src/lib/components/dataset-review/SourceIntakePanel.svelte) -->
+<!-- @RELATION: [BINDS_TO] -> [environmentContextStore](frontend/src/routes/datasets/review/+page.svelte:24) -->
+<!-- @UX_STATE: Empty -> Show source intake for Superset link or dataset reference. -->
+<!-- @UX_STATE: Submitting -> Disable controls and show startup feedback. -->
+<!-- @UX_STATE: Error -> Inline error shown while keeping intake values editable. -->
+<!-- @UX_RECOVERY: Users can correct invalid input in place and retry without losing environment selection. -->
+<script>
+  import { fromStore } from "svelte/store";
+  import SourceIntakePanel from "$lib/components/dataset-review/SourceIntakePanel.svelte";
+  import { t } from "$lib/i18n";
+  import { api } from "$lib/api.js";
+  import {
+    environmentContextStore,
+    initializeEnvironmentContext,
+  } from "$lib/stores/environmentContext.js";
+
+  const environmentContextState = fromStore(environmentContextStore);
+
+  let isBootstrapping = $state(true);
+  let isSubmitting = $state(false);
+  let submitError = $state("");
+  let intakeAcknowledgment = $state("");
+
+  const environments = $derived(environmentContextState.current?.environments || []);
+  const selectedEnvironmentId = $derived(
+    environmentContextState.current?.selectedEnvId || "",
+  );
+
+  function buildSessionUrl(sessionId) {
+    return `/datasets/review/${encodeURIComponent(String(sessionId))}`;
+  }
+
+  async function bootstrap() {
+    isBootstrapping = true;
+    try {
+      await initializeEnvironmentContext();
+    } finally {
+      isBootstrapping = false;
+    }
+  }
+
+  async function handleSourceSubmit(payload) {
+    isSubmitting = true;
+    submitError = "";
+    intakeAcknowledgment =
+      payload.source_kind === "superset_link"
+        ? $t.dataset_review?.source?.recognized_link_hint
+        : $t.dataset_review?.source?.dataset_selection_acknowledged;
+
+    try {
+      const summary = await api.postApi("/dataset-orchestration/sessions", payload);
+      if (!summary?.session_id) {
+        throw new Error($t.dataset_review?.source?.submit_failed || "Failed to start review");
+      }
+      window.location.href = buildSessionUrl(summary.session_id);
+    } catch (error) {
+      submitError =
+        error?.message ||
+        $t.dataset_review?.source?.submit_failed ||
+        $t.common?.error;
+      throw error;
+    } finally {
+      isSubmitting = false;
+    }
+  }
+
+  bootstrap();
+</script>
+
+<div class="mx-auto w-full max-w-7xl space-y-5 px-4 py-6">
+  <div class="flex flex-col gap-3 lg:flex-row lg:items-start lg:justify-between">
+    <div>
+      <p class="text-xs font-semibold uppercase tracking-[0.2em] text-blue-700">
+        {$t.dataset_review?.workspace?.eyebrow}
+      </p>
+      <h1 class="text-2xl font-bold text-slate-900">
+        {$t.dataset_review?.workspace?.title}
+      </h1>
+      <p class="mt-1 max-w-3xl text-sm text-slate-600">
+        {$t.dataset_review?.workspace?.description}
+      </p>
+    </div>
+
+    <div class="flex flex-wrap items-center gap-2">
+      <span class="rounded-full bg-slate-100 px-3 py-1 text-xs font-medium text-slate-700">
+        {$t.dataset_review?.workspace?.state_label}: {$t.dataset_review?.workspace?.state?.empty || "Empty"}
+      </span>
+    </div>
+  </div>
+
+  {#if isBootstrapping}
+    <div class="rounded-2xl border border-slate-200 bg-white p-6 text-sm text-slate-500 shadow-sm">
+      {$t.dataset_review?.workspace?.loading}
+    </div>
+  {:else}
+    <SourceIntakePanel
+      environments={environments}
+      selectedEnvironmentId={selectedEnvironmentId}
+      submitting={isSubmitting}
+      acknowledgment={intakeAcknowledgment}
+      onsubmit={handleSourceSubmit}
+    />
+
+    {#if submitError}
+      <div class="rounded-2xl border border-red-200 bg-red-50 px-4 py-4 text-sm text-red-700">
+        {submitError}
+      </div>
+    {/if}
+  {/if}
+</div>
+
+<!-- [/DEF:DatasetReviewWorkspaceEntry:Page] -->