app/api/routers/admin_dbops.py

@@ -5,7 +5,7 @@ import logging
 from fastapi import APIRouter, Depends, Path, Query, Request
 from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.api.deps import get_api_admin_user
+from app.api.deps import get_api_admin_user, get_api_current_user
 from app.api.errors import ApiException
 from app.api.responses import success_payload
 from app.api.schemas import (
@@ -185,7 +185,7 @@ async def get_pdf_queue(
     offset: int | None = Query(default=None, ge=0),
     status: str | None = Query(default=None),
     db_session: AsyncSession = Depends(get_db_session),
-    admin_user: User = Depends(get_api_admin_user),
+    current_user: User = Depends(get_api_current_user),
 ):
     normalized_status = (status or "").strip().lower() or None
     resolved_page, resolved_limit, resolved_offset = _resolve_pdf_queue_paging(
@@ -204,7 +204,7 @@ async def get_pdf_queue(
         logger,
         "info",
         "api.admin.db.pdf_queue_listed",
-        admin_user_id=int(admin_user.id),
+        user_id=int(current_user.id),
         page=int(resolved_page),
         page_size=int(resolved_limit),
         offset=int(resolved_offset),

app/api/routers/scholars.py

@@ -261,11 +261,18 @@ async def delete_scholar(
             code="scholar_not_found",
             message="Scholar not found.",
         )
+    try:
         await scholar_service.delete_scholar(
             db_session,
             profile=profile,
             upload_dir=settings.scholar_image_upload_dir,
         )
+    except scholar_service.ScholarServiceError as exc:
+        raise ApiException(
+            status_code=409,
+            code="scholar_delete_failed",
+            message=str(exc),
+        ) from exc
     structured_log(
         logger, "info", "api.scholars.deleted", user_id=current_user.id, scholar_profile_id=scholar_profile_id
     )

app/services/scholars/application.py

@@ -125,7 +125,11 @@ async def delete_scholar(
         _safe_remove_upload(upload_root, profile.profile_image_upload_path)
 
     await db_session.delete(profile)
+    try:
         await db_session.commit()
+    except IntegrityError as exc:
+        await db_session.rollback()
+        raise ScholarServiceError("Unable to delete scholar due to a database constraint.") from exc
 
 
 async def hydrate_profile_metadata(

frontend/src/features/scholars/components/ScholarBatchAdd.test.ts

@@ -2,10 +2,144 @@
 import { describe, expect, it } from "vitest";
 import { mount } from "@vue/test-utils";
 import ScholarBatchAdd from "./ScholarBatchAdd.vue";
+import {
+  parseScholarIds,
+  parseScholarTokens,
+  extractScholarIdFromUrl,
+  validateTokenAsId,
+} from "./scholar-batch-parsing";
 
 const defaultProps = { saving: false, loading: false };
 
-describe("ScholarBatchAdd", () => {
+describe("parseScholarIds (unit)", () => {
+  it("parses a single bare ID", () => {
+    expect(parseScholarIds("A-UbBTPM15wL")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("parses multiple IDs separated by commas", () => {
+    expect(parseScholarIds("A-UbBTPM15wL, B-UbBTPM15wL")).toEqual(["A-UbBTPM15wL", "B-UbBTPM15wL"]);
+  });
+
+  it("deduplicates IDs", () => {
+    expect(parseScholarIds("A-UbBTPM15wL\nA-UbBTPM15wL")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("extracts ID from standard Google Scholar URL", () => {
+    expect(parseScholarIds("https://scholar.google.com/citations?hl=en&user=A-UbBTPM15wL")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("extracts ID from URL with trailing slash", () => {
+    expect(parseScholarIds("https://scholar.google.com/citations?user=A-UbBTPM15wL/")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("extracts ID from URL with fragment", () => {
+    expect(parseScholarIds("https://scholar.google.com/citations?user=A-UbBTPM15wL#section")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("extracts ID from URL with extra query params", () => {
+    expect(parseScholarIds("https://scholar.google.com/citations?hl=en&user=A-UbBTPM15wL&view_op=list_works&sortby=pubdate")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("handles URL-encoded characters in non-ID parts", () => {
+    expect(parseScholarIds("https://scholar.google.com/citations?hl=en&user=A-UbBTPM15wL&label=%E4%B8%AD%E6%96%87")).toEqual(["A-UbBTPM15wL"]);
+  });
+
+  it("rejects malformed IDs (too short)", () => {
+    expect(parseScholarIds("ABC123")).toEqual([]);
+  });
+
+  it("rejects malformed IDs (too long)", () => {
+    expect(parseScholarIds("ABCDEF1234567")).toEqual([]);
+  });
+
+  it("rejects IDs with special characters", () => {
+    expect(parseScholarIds("ABCDEF12345!")).toEqual([]);
+  });
+
+  it("rejects IDs with embedded whitespace", () => {
+    expect(parseScholarIds("ABC DEF12345")).toEqual([]);
+  });
+
+  it("handles mixed valid and invalid tokens", () => {
+    expect(parseScholarIds("A-UbBTPM15wL, invalid, B-UbBTPM15wL")).toEqual(["A-UbBTPM15wL", "B-UbBTPM15wL"]);
+  });
+
+  it("returns empty array for empty string", () => {
+    expect(parseScholarIds("")).toEqual([]);
+  });
+
+  it("returns empty array for whitespace only", () => {
+    expect(parseScholarIds("   ")).toEqual([]);
+  });
+});
+
+describe("extractScholarIdFromUrl", () => {
+  it("returns null for non-URL strings", () => {
+    expect(extractScholarIdFromUrl("not-a-url")).toBeNull();
+  });
+
+  it("returns null for URL without user param", () => {
+    expect(extractScholarIdFromUrl("https://scholar.google.com/citations?hl=en")).toBeNull();
+  });
+
+  it("extracts from URL with trailing slashes", () => {
+    expect(extractScholarIdFromUrl("https://scholar.google.com/citations?user=A-UbBTPM15wL///")).toBe("A-UbBTPM15wL");
+  });
+
+  it("strips fragment before parsing", () => {
+    expect(extractScholarIdFromUrl("https://scholar.google.com/citations?user=A-UbBTPM15wL#foo")).toBe("A-UbBTPM15wL");
+  });
+
+  it("returns null when user param is invalid length", () => {
+    expect(extractScholarIdFromUrl("https://scholar.google.com/citations?user=short")).toBeNull();
+  });
+});
+
+describe("validateTokenAsId", () => {
+  it("returns null for valid 12-char ID", () => {
+    expect(validateTokenAsId("ABCDEF123456")).toBeNull();
+  });
+
+  it("detects wrong length", () => {
+    expect(validateTokenAsId("ABC")).toContain("12 characters");
+  });
+
+  it("detects invalid characters", () => {
+    expect(validateTokenAsId("ABCDEF12345!")).toContain("invalid characters");
+  });
+
+  it("detects whitespace", () => {
+    expect(validateTokenAsId("ABC DEF12345")).toContain("whitespace");
+  });
+
+  it("detects empty input", () => {
+    expect(validateTokenAsId("")).toContain("empty");
+  });
+});
+
+describe("parseScholarTokens (per-token errors)", () => {
+  it("marks invalid tokens with error messages", () => {
+    const tokens = parseScholarTokens("A-UbBTPM15wL, short, B-UbBTPM15wL");
+    expect(tokens).toHaveLength(3);
+    expect(tokens[0].id).toBe("A-UbBTPM15wL");
+    expect(tokens[0].error).toBeNull();
+    expect(tokens[1].id).toBeNull();
+    expect(tokens[1].error).toContain("12 characters");
+    expect(tokens[2].id).toBe("B-UbBTPM15wL");
+  });
+
+  it("marks duplicate tokens", () => {
+    const tokens = parseScholarTokens("A-UbBTPM15wL, A-UbBTPM15wL");
+    expect(tokens[1].error).toBe("duplicate");
+  });
+
+  it("marks bad URL tokens", () => {
+    const tokens = parseScholarTokens("https://scholar.google.com/citations?hl=en");
+    expect(tokens[0].error).toContain("could not extract");
+  });
+});
+
+describe("ScholarBatchAdd (component)", () => {
   it("renders the heading and input", () => {
     const wrapper = mount(ScholarBatchAdd, { props: defaultProps });
     expect(wrapper.text()).toContain("Add Scholar Profiles");
@@ -73,4 +207,18 @@ describe("ScholarBatchAdd", () => {
     const wrapper = mount(ScholarBatchAdd, { props: { ...defaultProps, saving: true } });
     expect(wrapper.text()).toContain("Adding...");
   });
+
+  it("shows validation errors for invalid tokens", async () => {
+    const wrapper = mount(ScholarBatchAdd, { props: defaultProps });
+    await wrapper.find("textarea").setValue("A-UbBTPM15wL, bad!");
+    const errors = wrapper.find("[data-testid='validation-errors']");
+    expect(errors.exists()).toBe(true);
+  });
+
+  it("shows skipped count alongside valid count", async () => {
+    const wrapper = mount(ScholarBatchAdd, { props: defaultProps });
+    await wrapper.find("textarea").setValue("A-UbBTPM15wL, tooshort");
+    expect(wrapper.text()).toContain("1 valid");
+    expect(wrapper.text()).toContain("1 skipped");
+  });
 });

frontend/src/features/scholars/components/ScholarBatchAdd.vue

@@ -3,6 +3,7 @@ import { computed, ref } from "vue";
 import AppButton from "@/components/ui/AppButton.vue";
 import AppCard from "@/components/ui/AppCard.vue";
 import AppHelpHint from "@/components/ui/AppHelpHint.vue";
+import { parseScholarTokens } from "./scholar-batch-parsing";
 
 defineProps<{
   saving: boolean;
@@ -15,38 +16,13 @@ const emit = defineEmits<{
 
 const scholarBatchInput = ref("");
 
-const SCHOLAR_ID_PATTERN = /^[a-zA-Z0-9_-]{12}$/;
+const parsedTokens = computed(() => parseScholarTokens(scholarBatchInput.value));
-const URL_USER_PARAM_PATTERN = /(?:\?|&)user=([a-zA-Z0-9_-]{12})(?:&|#|$)/i;
+const validIds = computed(() => parsedTokens.value.filter((t) => t.id !== null));
-
+const invalidTokens = computed(() => parsedTokens.value.filter((t) => t.id === null));
-function parseScholarIds(raw: string): string[] {
+const parsedBatchCount = computed(() => validIds.value.length);
-  const ordered: string[] = [];
-  const seen = new Set<string>();
-  const tokens = raw.split(/[\s,;]+/).map((v) => v.trim()).filter((v) => v.length > 0);
-  for (const token of tokens) {
-    let candidate: string | null = null;
-    if (SCHOLAR_ID_PATTERN.test(token)) candidate = token;
-    if (!candidate) {
-      const directParamMatch = token.match(URL_USER_PARAM_PATTERN);
-      if (directParamMatch) candidate = directParamMatch[1];
-    }
-    if (!candidate && token.includes("scholar.google")) {
-      try {
-        const parsed = new URL(token);
-        const userParam = parsed.searchParams.get("user");
-        if (userParam && SCHOLAR_ID_PATTERN.test(userParam)) candidate = userParam;
-      } catch (_error) { /* Ignore non-URL tokens. */ }
-    }
-    if (!candidate || seen.has(candidate)) continue;
-    seen.add(candidate);
-    ordered.push(candidate);
-  }
-  return ordered;
-}
-
-const parsedBatchCount = computed(() => parseScholarIds(scholarBatchInput.value).length);
 
 function onSubmit(): void {
-  const ids = parseScholarIds(scholarBatchInput.value);
+  const ids = validIds.value.map((t) => t.id!);
   if (ids.length > 0) {
     emit("add-scholars", ids);
     scholarBatchInput.value = "";
@@ -76,11 +52,33 @@ function onSubmit(): void {
         />
       </label>
 
-      <div class="flex flex-wrap items-center justify-between gap-2">
+      <div v-if="parsedTokens.length > 0" class="space-y-1">
         <p class="text-xs text-secondary">
-          Parsed IDs: <strong class="text-ink-primary">{{ parsedBatchCount }}</strong>
+          <strong class="text-ink-primary">{{ parsedBatchCount }}</strong> valid ID{{ parsedBatchCount === 1 ? "" : "s" }}
+          <template v-if="invalidTokens.length > 0">
+            · <span class="text-state-warning-text">{{ invalidTokens.length }} skipped</span>
+          </template>
         </p>
-        <AppButton type="submit" :disabled="saving || loading">
+        <ul v-if="invalidTokens.length > 0" class="space-y-0.5" data-testid="validation-errors">
+          <li
+            v-for="item in invalidTokens.slice(0, 5)"
+            :key="item.index"
+            class="text-xs text-state-warning-text"
+          >
+            #{{ item.index }}: {{ item.error }}
+            <code class="ml-1 break-all text-ink-muted">{{ item.raw.length > 60 ? item.raw.slice(0, 57) + "..." : item.raw }}</code>
+          </li>
+          <li v-if="invalidTokens.length > 5" class="text-xs text-state-warning-text">
+            +{{ invalidTokens.length - 5 }} more skipped
+          </li>
+        </ul>
+      </div>
+      <div v-else class="text-xs text-secondary">
+        Parsed IDs: <strong class="text-ink-primary">0</strong>
+      </div>
+
+      <div class="flex flex-wrap items-center justify-end gap-2">
+        <AppButton type="submit" :disabled="saving || loading || parsedBatchCount === 0">
           {{ saving ? "Adding..." : "Add scholars" }}
         </AppButton>
       </div>

frontend/src/features/scholars/components/ScholarSettingsModal.vue

@@ -47,7 +47,14 @@ function scholarPublicationsRoute(profile: ScholarProfile): { name: string; quer
           :image-url="scholar.profile_image_url"
         />
         <div class="min-w-0 space-y-1">
-          <p class="truncate text-sm font-semibold text-ink-primary">{{ scholarLabel(scholar) }}</p>
+          <p class="truncate text-sm font-semibold text-ink-primary">
+            {{ scholarLabel(scholar) }}
+            <span
+              v-if="!scholar.baseline_completed"
+              class="ml-1.5 inline-flex items-center rounded-full border border-state-warning-border bg-state-warning-bg px-1.5 py-0.5 text-[10px] font-medium text-state-warning-text"
+              title="This scholar hasn't been scraped yet. Publications will appear after the next run."
+            >Pending</span>
+          </p>
           <p class="text-xs text-secondary">ID: <code>{{ scholar.scholar_id }}</code></p>
           <div class="flex flex-wrap items-center gap-3">
             <RouterLink :to="scholarPublicationsRoute(scholar)" class="link-inline text-xs">

frontend/src/features/scholars/components/ScholarStatusBadges.vue

@@ -0,0 +1,29 @@
+<script setup lang="ts">
+defineProps<{
+  baselineCompleted: boolean;
+  lastRunStatus: string | null;
+}>();
+</script>
+
+<template>
+  <span
+    v-if="!baselineCompleted"
+    class="ml-1.5 inline-flex items-center rounded-full border border-state-warning-border bg-state-warning-bg px-1.5 py-0.5 text-[10px] font-medium text-state-warning-text"
+    title="This scholar hasn't been scraped yet. Publications will appear after the next run."
+  >Pending</span>
+  <span
+    v-if="lastRunStatus === 'failed'"
+    class="ml-1.5 inline-flex items-center rounded-full border border-state-danger-border bg-state-danger-bg px-1.5 py-0.5 text-[10px] font-medium text-state-danger-text"
+    title="The last scrape run for this scholar failed."
+  >Failed</span>
+  <span
+    v-else-if="lastRunStatus === 'partial'"
+    class="ml-1.5 inline-flex items-center rounded-full border border-state-warning-border bg-state-warning-bg px-1.5 py-0.5 text-[10px] font-medium text-state-warning-text"
+    title="The last scrape run for this scholar completed with partial results."
+  >Partial</span>
+  <span
+    v-else-if="lastRunStatus === 'success'"
+    class="ml-1.5 inline-flex items-center rounded-full border border-state-success-border bg-state-success-bg px-1.5 py-0.5 text-[10px] font-medium text-state-success-text"
+    title="The last scrape run for this scholar completed successfully."
+  >OK</span>
+</template>

frontend/src/features/scholars/components/scholar-batch-parsing.ts

@@ -0,0 +1,76 @@
+const SCHOLAR_ID_PATTERN = /^[a-zA-Z0-9_-]{12}$/;
+
+export interface ParsedToken {
+  index: number;
+  raw: string;
+  id: string | null;
+  error: string | null;
+}
+
+export function extractScholarIdFromUrl(token: string): string | null {
+  const cleaned = token.replace(/\/+$/, "").replace(/#.*$/, "");
+  try {
+    const parsed = new URL(cleaned);
+    const userParam = parsed.searchParams.get("user");
+    if (!userParam) return null;
+    const decoded = decodeURIComponent(userParam).trim();
+    if (SCHOLAR_ID_PATTERN.test(decoded)) return decoded;
+    return null;
+  } catch {
+    return null;
+  }
+}
+
+export function validateTokenAsId(token: string): string | null {
+  const trimmed = token.trim();
+  if (!trimmed) return "empty input";
+  if (/\s/.test(trimmed)) return "contains whitespace";
+  if (trimmed.length !== 12) return `must be 12 characters (got ${trimmed.length})`;
+  if (!/^[a-zA-Z0-9_-]+$/.test(trimmed)) {
+    return "contains invalid characters (only a-z, A-Z, 0-9, _ and - allowed)";
+  }
+  return null;
+}
+
+export function parseScholarTokens(raw: string): ParsedToken[] {
+  const tokens = raw.split(/[\s,;]+/).map((v) => v.trim()).filter((v) => v.length > 0);
+  const results: ParsedToken[] = [];
+  const seen = new Set<string>();
+
+  for (let i = 0; i < tokens.length; i++) {
+    const token = tokens[i];
+
+    if (SCHOLAR_ID_PATTERN.test(token)) {
+      if (seen.has(token)) {
+        results.push({ index: i + 1, raw: token, id: null, error: "duplicate" });
+        continue;
+      }
+      seen.add(token);
+      results.push({ index: i + 1, raw: token, id: token, error: null });
+      continue;
+    }
+
+    if (token.includes("scholar.google") || token.startsWith("http")) {
+      const extracted = extractScholarIdFromUrl(token);
+      if (extracted) {
+        if (seen.has(extracted)) {
+          results.push({ index: i + 1, raw: token, id: null, error: "duplicate" });
+          continue;
+        }
+        seen.add(extracted);
+        results.push({ index: i + 1, raw: token, id: extracted, error: null });
+        continue;
+      }
+      results.push({ index: i + 1, raw: token, id: null, error: "could not extract scholar ID from URL" });
+      continue;
+    }
+
+    const reason = validateTokenAsId(token);
+    results.push({ index: i + 1, raw: token, id: null, error: reason ?? "invalid scholar ID" });
+  }
+  return results;
+}
+
+export function parseScholarIds(raw: string): string[] {
+  return parseScholarTokens(raw).filter((t) => t.id !== null).map((t) => t.id!);
+}

frontend/src/features/settings/SettingsAdminPanel.vue

@@ -1,7 +1,7 @@
 <script setup lang="ts">
-import { onMounted, ref, watch } from "vue";
+import { onMounted, watch } from "vue";
+import { ref } from "vue";
 
-import AsyncStateGate from "@/components/patterns/AsyncStateGate.vue";
 import RequestStateAlerts from "@/components/patterns/RequestStateAlerts.vue";
 import AdminIntegritySection from "@/features/settings/components/AdminIntegritySection.vue";
 import AdminPdfQueueSection from "@/features/settings/components/AdminPdfQueueSection.vue";
@@ -18,7 +18,6 @@ const props = defineProps<{
   section: "users" | "integrity" | "repairs" | "pdf";
 }>();
 
-const loading = ref(true);
 const { errorMessage, errorRequestId, successMessage, clearAlerts, assignError } = useRequestState();
 
 const usersRef = ref<InstanceType<typeof AdminUsersSection> | null>(null);
@@ -26,34 +25,21 @@ const integrityRef = ref<InstanceType<typeof AdminIntegritySection> | null>(null
 const repairsRef = ref<InstanceType<typeof AdminRepairsSection> | null>(null);
 const pdfQueueRef = ref<InstanceType<typeof AdminPdfQueueSection> | null>(null);
 
-async function refreshForSection(): Promise<void> {
-  if (props.section === SECTION_USERS && usersRef.value) {
-    await usersRef.value.load();
-    return;
-  }
-  if (props.section === SECTION_INTEGRITY && integrityRef.value) {
-    await integrityRef.value.load();
-    return;
-  }
-  if (props.section === SECTION_REPAIRS) {
-    await usersRef.value?.load();
-    await repairsRef.value?.load();
-    return;
-  }
-  if (props.section === SECTION_PDF && pdfQueueRef.value) {
-    await pdfQueueRef.value.load();
-  }
-}
-
 async function loadSection(): Promise<void> {
-  loading.value = true;
   clearAlerts();
   try {
-    await refreshForSection();
+    if (props.section === SECTION_USERS && usersRef.value) {
+      await usersRef.value.load();
+    } else if (props.section === SECTION_INTEGRITY && integrityRef.value) {
+      await integrityRef.value.load();
+    } else if (props.section === SECTION_REPAIRS) {
+      await usersRef.value?.load();
+      await repairsRef.value?.load();
+    } else if (props.section === SECTION_PDF && pdfQueueRef.value) {
+      await pdfQueueRef.value.load();
+    }
   } catch (error) {
     assignError(error, "Unable to load admin data.");
-  } finally {
-    loading.value = false;
   }
 }
 
@@ -72,11 +58,9 @@ watch(() => props.section, loadSection);
       @dismiss-success="successMessage = null"
     />
 
-    <AsyncStateGate :loading="loading" :loading-lines="10" :show-empty="false">
     <AdminUsersSection v-if="props.section === SECTION_USERS || props.section === SECTION_REPAIRS" v-show="props.section === SECTION_USERS" ref="usersRef" />
     <AdminIntegritySection v-if="props.section === SECTION_INTEGRITY" ref="integrityRef" />
     <AdminRepairsSection v-if="props.section === SECTION_REPAIRS" ref="repairsRef" :users="usersRef?.users ?? []" />
     <AdminPdfQueueSection v-if="props.section === SECTION_PDF" ref="pdfQueueRef" />
-    </AsyncStateGate>
   </section>
 </template>

frontend/src/features/settings/components/AdminPdfQueueSection.test.ts

@@ -1,6 +1,8 @@
 // @vitest-environment happy-dom
 import { describe, expect, it, vi, beforeEach } from "vitest";
 import { mount, flushPromises } from "@vue/test-utils";
+import { setActivePinia, createPinia } from "pinia";
+import { useAuthStore } from "@/stores/auth";
 import AdminPdfQueueSection from "./AdminPdfQueueSection.vue";
 
 vi.mock("@/features/admin_dbops", () => ({
@@ -36,6 +38,9 @@ function buildQueueItem(overrides: Record<string, unknown> = {}) {
 
 describe("AdminPdfQueueSection", () => {
   beforeEach(() => {
+    setActivePinia(createPinia());
+    const auth = useAuthStore();
+    auth.$patch({ state: "authenticated", user: { id: 1, email: "admin@test.com", is_admin: true, is_active: true } });
     mockedListQueue.mockReset();
   });
 

frontend/src/features/settings/components/AdminPdfQueueSection.vue

@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { computed, ref } from "vue";
+import { useAuthStore } from "@/stores/auth";
 import AppBadge from "@/components/ui/AppBadge.vue";
 import AppButton from "@/components/ui/AppButton.vue";
 import AppCard from "@/components/ui/AppCard.vue";
@@ -17,6 +18,7 @@ import {
 import { useRequestState } from "@/composables/useRequestState";
 
 const { errorMessage, errorRequestId, successMessage, clearAlerts, assignError, setSuccess } = useRequestState();
+const auth = useAuthStore();
 
 const refreshingPdfQueue = ref(false);
 const requeueingPublicationId = ref<number | null>(null);
@@ -162,7 +164,7 @@ defineExpose({ load });
           <option value="50">50 / page</option>
           <option value="100">100 / page</option>
         </AppSelect>
-        <AppButton variant="secondary" class="!min-h-8 whitespace-nowrap !px-2.5 !py-1 !text-xs" :disabled="requeueingAllPdfs" title="Queue all missing PDFs" @click="onRequeueAllPdfs">
+        <AppButton v-if="auth.isAdmin" variant="secondary" class="!min-h-8 whitespace-nowrap !px-2.5 !py-1 !text-xs" :disabled="requeueingAllPdfs" title="Queue all missing PDFs" @click="onRequeueAllPdfs">
           {{ requeueingAllPdfs ? "Queueing..." : "Queue all" }}
         </AppButton>
         <AppRefreshButton variant="secondary" size="sm" :loading="refreshingPdfQueue" title="Refresh PDF queue" loading-title="Refreshing PDF queue" @click="refreshPdfQueue" />
@@ -194,7 +196,7 @@ defineExpose({ load });
           <td>{{ formatTimestamp(item.last_attempt_at) }}</td>
           <td>{{ formatTimestamp(item.resolved_at) }}</td>
           <td>
-            <AppButton variant="ghost" :disabled="requeueingPublicationId === item.publication_id || !canRequeuePdf(item)" @click="onRequeuePdf(item)">
+            <AppButton v-if="auth.isAdmin" variant="ghost" :disabled="requeueingPublicationId === item.publication_id || !canRequeuePdf(item)" @click="onRequeuePdf(item)">
               {{ requeueingPublicationId === item.publication_id ? "Requeueing..." : "Requeue" }}
             </AppButton>
           </td>

frontend/src/pages/DashboardPage.vue

@@ -404,7 +404,7 @@ watch(
                     </div>
                     <div class="flex items-center gap-2">
                       <AppButton
-                        v-if="auth.isAdmin && runStatus.isLikelyRunning"
+                        v-if="runStatus.isLikelyRunning"
                         variant="danger"
                         :disabled="!activeRunId || isCancelAnimating"
                         @click="onCancelRun"
@@ -420,7 +420,6 @@ watch(
                         </span>
                       </AppButton>
                       <AppButton
-                        v-if="auth.isAdmin"
                         :disabled="isStartBlocked"
                         :title="startCheckDisabledReason || undefined"
                         :class="isStartCheckAnimating ? 'shadow-[0_0_0_1px_var(--color-state-info-border)]' : ''"
@@ -495,6 +494,11 @@ watch(
                       <template v-else>
                         Processed {{ displayedLatestRun.scholar_count }} scholars and discovered
                         {{ displayedLatestRun.new_publication_count }} new publications.
+                        <template v-if="displayedLatestRun.failed_count > 0 || displayedLatestRun.partial_count > 0">
+                          <span class="text-state-warning-text">
+                            {{ displayedLatestRun.failed_count > 0 ? `${displayedLatestRun.failed_count} failed` : "" }}{{ displayedLatestRun.failed_count > 0 && displayedLatestRun.partial_count > 0 ? ", " : "" }}{{ displayedLatestRun.partial_count > 0 ? `${displayedLatestRun.partial_count} partial` : "" }}.
+                          </span>
+                        </template>
                       </template>
                     </p>
                   </div>
@@ -528,6 +532,9 @@ watch(
                         </div>
                         <span class="text-xs text-secondary">
                           {{ formatDate(run.start_dt) }} • {{ run.new_publication_count }} new
+                          <template v-if="run.failed_count > 0">
+                            • <span class="text-state-warning-text">{{ run.failed_count }} failed</span>
+                          </template>
                         </span>
                       </li>
                     </ul>

frontend/src/pages/ScholarsPage.vue

@@ -31,6 +31,7 @@ import ScholarAvatar from "@/features/scholars/components/ScholarAvatar.vue";
 import ScholarBatchAdd from "@/features/scholars/components/ScholarBatchAdd.vue";
 import ScholarNameSearch from "@/features/scholars/components/ScholarNameSearch.vue";
 import ScholarSettingsModal from "@/features/scholars/components/ScholarSettingsModal.vue";
+import ScholarStatusBadges from "@/features/scholars/components/ScholarStatusBadges.vue";
 import { ApiRequestError } from "@/lib/api/errors";
 import { useRunStatusStore } from "@/stores/run_status";
 
@@ -505,7 +506,10 @@ watch(
                     <div class="flex items-start gap-3">
                       <ScholarAvatar :label="item.display_name" :scholar-id="item.scholar_id" :image-url="item.profile_image_url" />
                       <div class="min-w-0 flex-1 space-y-1">
-                        <p class="truncate text-sm font-semibold text-ink-primary">{{ scholarLabel(item) }}</p>
+                        <p class="truncate text-sm font-semibold text-ink-primary">
+                          {{ scholarLabel(item) }}
+                          <ScholarStatusBadges :baseline-completed="item.baseline_completed" :last-run-status="item.last_run_status" />
+                        </p>
                         <div class="flex flex-wrap items-center gap-3">
                           <RouterLink :to="scholarPublicationsRoute(item)" class="link-inline text-xs">Publications</RouterLink>
                           <a :href="scholarProfileUrl(item.scholar_id)" target="_blank" rel="noreferrer" class="link-inline text-xs">Open profile</a>
@@ -529,7 +533,10 @@ watch(
                           <div class="flex items-start gap-3">
                             <ScholarAvatar :label="item.display_name" :scholar-id="item.scholar_id" :image-url="item.profile_image_url" />
                             <div class="grid min-w-0 gap-1">
-                              <strong class="truncate text-ink-primary">{{ scholarLabel(item) }}</strong>
+                              <strong class="truncate text-ink-primary">
+                                {{ scholarLabel(item) }}
+                                <ScholarStatusBadges :baseline-completed="item.baseline_completed" :last-run-status="item.last_run_status" />
+                              </strong>
                               <div class="flex flex-wrap items-center gap-3">
                                 <RouterLink :to="scholarPublicationsRoute(item)" class="link-inline text-xs">Publications</RouterLink>
                                 <a :href="scholarProfileUrl(item.scholar_id)" target="_blank" rel="noreferrer" class="link-inline text-xs">Open profile</a>

frontend/src/pages/SettingsPage.vue

@@ -47,7 +47,7 @@ const savingScholarHttp = ref(false);
 const updatingPassword = ref(false);
 
 const autoRunEnabled = ref(false);
-const runIntervalMinutes = ref("60");
+const runIntervalHours = ref("1");
 const requestDelaySeconds = ref("2");
 const navVisiblePages = ref<string[]>([]);
 const openalexApiKey = ref("");
@@ -77,13 +77,13 @@ const tabItems = computed<AppTabItem[]>(() => {
   const tabs: AppTabItem[] = [
     { id: TAB_CHECKING, label: "Checking" },
     { id: TAB_ACCOUNT, label: "Account" },
+    { id: TAB_ADMIN_PDF, label: "PDF Queue" },
   ];
   if (auth.isAdmin) {
     tabs.push(
       { id: TAB_ADMIN_USERS, label: "Users" },
       { id: TAB_ADMIN_INTEGRITY, label: "Integrity" },
       { id: TAB_ADMIN_REPAIRS, label: "Repairs" },
-      { id: TAB_ADMIN_PDF, label: "PDF Queue" },
       { id: TAB_ADMIN_INTEGRATIONS, label: "Integrations" },
     );
   }
@@ -138,7 +138,7 @@ function hydrateSettings(settings: UserSettings): void {
   manualRunAllowed.value = Boolean(settings.policy?.manual_run_allowed ?? true);
 
   autoRunEnabled.value = Boolean(settings.auto_run_enabled) && automationAllowed.value;
-  runIntervalMinutes.value = String(settings.run_interval_minutes);
+  runIntervalHours.value = String(Number(settings.run_interval_minutes) / 60);
   requestDelaySeconds.value = String(settings.request_delay_seconds);
   navVisiblePages.value = normalizeUserNavVisiblePages(settings.nav_visible_pages);
 
@@ -168,6 +168,18 @@ function parseBoundedInteger(value: string, label: string, minimum: number): num
   return parsed;
 }
 
+function parseHoursToMinutes(value: string, minMinutes: number): number {
+  const hours = Number(value);
+  if (!Number.isFinite(hours) || hours <= 0) {
+    throw new Error("Check interval must be a positive number of hours.");
+  }
+  const minutes = Math.round(hours * 60);
+  if (minutes < minMinutes) {
+    throw new Error(`Check interval must be at least ${minMinutes / 60} hours.`);
+  }
+  return minutes;
+}
+
 async function loadSettings(): Promise<void> {
   loading.value = true;
   errorMessage.value = null;
@@ -225,9 +237,8 @@ async function onSaveSettings(): Promise<void> {
   try {
     const payload: UserSettingsUpdate = {
       auto_run_enabled: autoRunEnabled.value,
-      run_interval_minutes: parseBoundedInteger(
+      run_interval_minutes: parseHoursToMinutes(
-        runIntervalMinutes.value,
+        runIntervalHours.value,
-        "Check interval (minutes)",
         minCheckIntervalMinutes.value,
       ),
       request_delay_seconds: parseBoundedInteger(
@@ -357,11 +368,11 @@ onMounted(async () => {
 
             <label class="grid gap-2 text-sm font-medium text-ink-secondary">
               <span class="inline-flex items-center gap-1">
-                Check interval (minutes)
+                Check interval (hours)
                 <AppHelpHint text="Minimum is controlled by server policy." />
               </span>
-              <AppInput v-model="runIntervalMinutes" inputmode="numeric" />
+              <AppInput v-model="runIntervalHours" inputmode="decimal" />
-              <span class="text-xs text-secondary">Minimum: {{ minCheckIntervalMinutes }}</span>
+              <span class="text-xs text-secondary">Minimum: {{ minCheckIntervalMinutes / 60 }} hours</span>
             </label>
 
             <label class="grid gap-2 text-sm font-medium text-ink-secondary">

tests/integration/test_api_admin.py

@@ -340,10 +340,11 @@ async def test_api_admin_dbops_forbidden_for_non_admin_and_validates_scope(db_se
     assert forbidden_integrity.status_code == 403
     assert forbidden_integrity.json()["error"]["code"] == "forbidden"
 
-    forbidden_pdf_queue = client.get("/api/v1/admin/db/pdf-queue")
+    # PDF queue listing is accessible to all authenticated users (not admin-only).
-    assert forbidden_pdf_queue.status_code == 403
+    allowed_pdf_queue = client.get("/api/v1/admin/db/pdf-queue")
-    assert forbidden_pdf_queue.json()["error"]["code"] == "forbidden"
+    assert allowed_pdf_queue.status_code == 200
 
+    # But requeue actions still require admin.
     forbidden_requeue = client.post(
         "/api/v1/admin/db/pdf-queue/1/requeue",
         headers=headers,

tests/integration/test_api_scholars.py

@@ -70,6 +70,110 @@ async def test_api_scholars_crud_flow(db_session: AsyncSession) -> None:
     assert delete_response.json()["data"]["message"] == "Scholar deleted."
 
 
+@pytest.mark.integration
+@pytest.mark.db
+@pytest.mark.asyncio
+async def test_api_delete_scholar_returns_404_for_nonexistent(db_session: AsyncSession) -> None:
+    await insert_user(
+        db_session,
+        email="api-delete-404@example.com",
+        password="api-password",
+    )
+
+    client = TestClient(app)
+    login_user(client, email="api-delete-404@example.com", password="api-password")
+    headers = api_csrf_headers(client)
+
+    response = client.delete("/api/v1/scholars/999999", headers=headers)
+    assert response.status_code == 404
+    assert response.json()["error"]["code"] == "scholar_not_found"
+
+
+@pytest.mark.integration
+@pytest.mark.db
+@pytest.mark.asyncio
+async def test_api_delete_scholar_cascades_linked_publications(db_session: AsyncSession) -> None:
+    user_id = await insert_user(
+        db_session,
+        email="api-delete-cascade@example.com",
+        password="api-password",
+    )
+    scholar_result = await db_session.execute(
+        text(
+            """
+            INSERT INTO scholar_profiles (user_id, scholar_id, display_name, is_enabled)
+            VALUES (:user_id, :scholar_id, :display_name, true)
+            RETURNING id
+            """
+        ),
+        {"user_id": user_id, "scholar_id": "delCASCADE01", "display_name": "Cascade Test"},
+    )
+    scholar_profile_id = int(scholar_result.scalar_one())
+    pub_result = await db_session.execute(
+        text(
+            """
+            INSERT INTO publications (fingerprint_sha256, title_raw, title_normalized, citation_count)
+            VALUES (:fingerprint, :title_raw, :title_normalized, 0)
+            RETURNING id
+            """
+        ),
+        {
+            "fingerprint": f"{(user_id + 7000):064x}",
+            "title_raw": "Cascade Publication",
+            "title_normalized": "cascadepublication",
+        },
+    )
+    publication_id = int(pub_result.scalar_one())
+    await db_session.execute(
+        text(
+            """
+            INSERT INTO scholar_publications (scholar_profile_id, publication_id, is_read)
+            VALUES (:scholar_profile_id, :publication_id, false)
+            """
+        ),
+        {"scholar_profile_id": scholar_profile_id, "publication_id": publication_id},
+    )
+    await db_session.commit()
+
+    client = TestClient(app)
+    login_user(client, email="api-delete-cascade@example.com", password="api-password")
+    headers = api_csrf_headers(client)
+
+    delete_response = client.delete(f"/api/v1/scholars/{scholar_profile_id}", headers=headers)
+    assert delete_response.status_code == 200
+    assert delete_response.json()["data"]["message"] == "Scholar deleted."
+
+    link_result = await db_session.execute(
+        text("SELECT count(*) FROM scholar_publications WHERE scholar_profile_id = :id"),
+        {"id": scholar_profile_id},
+    )
+    assert int(link_result.scalar_one()) == 0
+
+
+@pytest.mark.integration
+@pytest.mark.db
+@pytest.mark.asyncio
+async def test_api_create_scholar_rejects_corrupted_id(db_session: AsyncSession) -> None:
+    await insert_user(
+        db_session,
+        email="api-bad-id@example.com",
+        password="api-password",
+    )
+
+    client = TestClient(app)
+    login_user(client, email="api-bad-id@example.com", password="api-password")
+    headers = api_csrf_headers(client)
+
+    for bad_id in ["short", "ABCDEF12345!", "", "   ", "AB CD EF1234"]:
+        response = client.post(
+            "/api/v1/scholars",
+            json={"scholar_id": bad_id},
+            headers=headers,
+        )
+        assert response.status_code == 400, f"Expected 400 for scholar_id={bad_id!r}"
+        assert response.json()["error"]["code"] == "invalid_scholar"
+
+
 @pytest.mark.integration
 @pytest.mark.db
 @pytest.mark.asyncio

tests/unit/test_scholar_validators.py

@@ -42,6 +42,34 @@ class TestValidateScholarId:
         with pytest.raises(ScholarServiceError, match="12"):
             validate_scholar_id("ABCDEF12345!")
 
+    def test_rejects_empty_string(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("")
+
+    def test_rejects_whitespace_only(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("   ")
+
+    def test_rejects_embedded_spaces(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("ABCDEF 12345")
+
+    def test_rejects_tab_characters(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("ABCDEF\t12345")
+
+    def test_rejects_url_as_id(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("https://scholar.google.com/citations?user=ABCDEF123456")
+
+    def test_rejects_newline_in_id(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("ABCDEF\n12345")
+
+    def test_rejects_unicode_characters(self) -> None:
+        with pytest.raises(ScholarServiceError, match="12"):
+            validate_scholar_id("ABCDEF12345\u00e9")
+
 
 class TestNormalizeDisplayName:
     def test_returns_stripped_name(self) -> None: