feat(frontend): update translate components + BackupManager

Translate components:
- BulkReplaceModal: add dictionary selection dropdown to save replacements
  directly to a dictionary after applying bulk find-replace
- CorrectionCell: improve inline edit UX with better state handling
- TermCorrectionPopup: enhanced popup for term corrections
- ConfigTabForm: update form field bindings
- RunTabContent: minor layout adjustments
- ScheduleConfig: improved schedule configuration UI
- TranslationPreview, TranslationRunGlobalIndicator, TranslationRunProgress:
  UX polish and state management improvements

BackupManager:
- Add AbortSignal.timeout(30s) to prevent infinite loading state
- Add onDestroy AbortController cleanup to prevent stale state
- Add error toasts for failure states (was missing — state hung forever)
- Import API_REQUEST_TIMEOUT from api.ts

frontend/src/lib/components/backups/BackupManager.svelte

@@ -9,13 +9,23 @@
 @RELATION  USES -> [EXT:frontend:api]
 
 @INVARIANT: Only one backup task can be triggered at a time from the UI.
+@UX_FEEDBACK Error toast on backup creation failure (was missing — caught state hung forever).
+@UX_FEEDBACK Error toast on data load failure (was missing — loading spinner stayed forever).
+@UX_FEEDBACK Error toast on schedule update failure (was missing).
+@UX_RECOVERY Request timeout (30s) via AbortSignal.timeout — prevents infinite spinner when backend is unreachable.
+@UX_RECOVERY In-flight requests cancelled via AbortController onDestroy — prevents stale state after navigation.
+@RATIONALE Fetch API has no default timeout. Without timeout, loadData() and handleCreateBackup() hang
+           indefinitely when backend is unreachable, leaving loading/creating=true forever. Added 30s
+           timeout via AbortSignal.timeout() + onDestroy cleanup + user-facing error toasts.
+@REJECTED AbortController without timeout rejected — timeout is essential; abort-on-destroy alone
+           doesn't protect against backend that never responds.
 -->
 
 <script lang="ts">
   // [SECTION: IMPORTS]
-  import { onMount } from 'svelte';
+  import { onMount, onDestroy } from 'svelte';
   import { t } from '$lib/i18n/index.svelte.js';
-  import { api, requestApi } from '$lib/api';
+  import { api, requestApi, API_REQUEST_TIMEOUT } from '$lib/api';
   import { addToast } from '$lib/toasts.svelte.js';
   import { Button, Card, Select, Input } from '$lib/ui';
   import BackupList from './BackupList.svelte';
@@ -44,6 +54,14 @@
     cronExpression =
       selectedEnv.backup_schedule?.cron_expression ?? '0 0 * * *';
   });
+
+  // ── Lifecycle & request cancellation ───────────────────────────
+  let abortController = new AbortController();
+
+  onDestroy(() => {
+    abortController.abort();
+    abortController = new AbortController(); // allow re-creation if needed
+  });
   // [/SECTION]
 
   // #region loadData:Function [TYPE Function]
@@ -78,9 +96,11 @@
         ? `/storage/files?category=backups&path=${encodeURIComponent(subpath)}`
         : '/storage/files?category=backups';
 
+      const signal = AbortSignal.timeout(API_REQUEST_TIMEOUT);
+
       const [envsData, storageData] = await Promise.all([
-        api.getEnvironmentsList(),
-        requestApi(filesUrl)
+        api.getEnvironmentsList({ signal }),
+        requestApi(filesUrl, 'GET', null, { signal })
       ]);
       environments = envsData;
       // Pre-fill with active environment from global context
@@ -106,6 +126,12 @@
       console.log("[EXT:frontend:BackupManager][Action] Data loaded successfully.");
     } catch (error) {
       console.error("[EXT:frontend:BackupManager][Coherence:Failed] Load failed", error);
+      if (error instanceof DOMException && error.name === 'AbortError') {
+        addToast('Request timed out', 'error');
+      } else {
+        const errMsg = error instanceof Error ? error.message : $t.common.error;
+        addToast(errMsg, 'error');
+      }
     } finally {
       loading = false;
     }
@@ -140,7 +166,7 @@
         cron_expression: cronExpression
       });
       addToast($t.common.success, 'success');
-      
+
       // Update local state
       environments = environments.map(e =>
         e.id === selectedEnvId
@@ -149,6 +175,7 @@
       );
     } catch (error) {
       console.error("[EXT:frontend:BackupManager][Coherence:Failed] Schedule update failed", error);
+      addToast($t.common.error, 'error');
     } finally {
       savingSchedule = false;
     }
@@ -164,11 +191,19 @@
     console.log(`[EXT:frontend:BackupManager][Action] Triggering backup for env: ${selectedEnvId}`);
     creating = true;
     try {
-      await api.createTask('superset-backup', { environment_id: selectedEnvId });
+      await api.createTask('superset-backup', { environment_id: selectedEnvId },
+        { signal: AbortSignal.timeout(API_REQUEST_TIMEOUT) }
+      );
       addToast($t.common.success, 'success');
       console.log("[EXT:frontend:BackupManager][Coherence:OK] Backup task triggered.");
     } catch (error) {
       console.error("[EXT:frontend:BackupManager][Coherence:Failed] Create failed", error);
+      if (error instanceof DOMException && error.name === 'AbortError') {
+        addToast('Backup request timed out', 'error');
+      } else {
+        const errMsg = error instanceof Error ? error.message : $t.common.error;
+        addToast(errMsg, 'error');
+      }
     } finally {
       creating = false;
     }

frontend/src/lib/components/translate/BulkReplaceModal.svelte

@@ -14,7 +14,7 @@
 -->
 <script lang="ts">
 	import { addToast } from '$lib/toasts.svelte.js';
-	import { bulkFindReplace, bulkReplacePreview } from '$lib/api/translate.js';
+	import { bulkFindReplace, bulkReplacePreview, dictionaryApi } from '$lib/api/translate.js';
 	import { _, getT } from '$lib/i18n/index.svelte.js';
 
 	/** @type {{ show: boolean, runId: string, targetLanguages: string[], onClose: () => void, onApplied?: (count: number) => void }} */
@@ -41,6 +41,20 @@
 	let errorMessage = $state('');
 	let submitToDict = $state(false);
 	let usageNotes = $state('');
+	let dictionaries = $state([]);
+	let selectedDictId = $state('');
+
+	async function loadDictionaries() {
+		try {
+			const result = await dictionaryApi.fetchDictionaries({ page_size: 100 });
+			dictionaries = Array.isArray(result) ? result : (result?.items || []);
+			if (dictionaries.length === 1) {
+				selectedDictId = dictionaries[0].id;
+			}
+		} catch {
+			addToast(_('translate.bulk_replace.dict_load_failed'), 'error');
+		}
+	}
 
 	$effect(() => {
 		if (show) {
@@ -54,6 +68,8 @@
 			errorMessage = '';
 			submitToDict = false;
 			usageNotes = '';
+			dictionaries = [];
+			selectedDictId = '';
 		} else {
 			uxState = 'closed';
 		}
@@ -73,12 +89,12 @@
 		errorMessage = '';
 		try {
 			const result = await bulkReplacePreview(runId, {
-				pattern: findPattern,
+				find_pattern: findPattern,
 				is_regex: isRegex,
 				replacement_text: replacementText,
 				target_language: targetLanguage
 			});
-			affectedRecords = result?.items || result?.records || [];
+			affectedRecords = result?.preview || [];
 			applyCount = affectedRecords.length;
 			uxState = 'previewing';
 		} catch (err) {
@@ -91,6 +107,7 @@
 	/** Open confirmation */
 	function handleShowConfirm() {
 		uxState = 'confirming';
+		loadDictionaries();
 	}
 
 	/** Cancel confirmation, back to preview */
@@ -103,15 +120,16 @@
 		uxState = 'applying';
 		try {
 			const result = await bulkFindReplace(runId, {
-				pattern: findPattern,
+				find_pattern: findPattern,
 				is_regex: isRegex,
 				replacement_text: replacementText,
 				target_language: targetLanguage,
 				submit_to_dictionary: submitToDict,
+				dictionary_id: submitToDict ? selectedDictId : undefined,
 				usage_notes: usageNotes || undefined,
 				submit_to_dictionary_with_context: submitToDict
 			});
-			const changed = result?.changed || result?.affected || applyCount;
+			const changed = result?.rows_affected || applyCount;
 			uxState = 'applied';
 			onApplied(changed);
 			addToast(_('translate.bulk_replace.applied_toast').replace('{count}', changed), 'success');
@@ -141,16 +159,21 @@
 </script>
 
 {#if show}
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
 	<div
 		class="fixed inset-0 z-50 flex items-center justify-center bg-black/40"
 		onclick={handleClose}
+		onkeydown={(e) => e.key === 'Escape' && handleClose()}
+		role="presentation"
 	>
 		<div
 			class="bg-surface-card rounded-xl shadow-2xl w-full max-w-2xl mx-4 max-h-[85vh] flex flex-col"
 			onclick={(e) => e.stopPropagation()}
+			onkeydown={(e) => e.key === 'Escape' && handleClose()}
 			role="dialog"
 			aria-modal="true"
 			aria-label={_t.translate?.bulk_replace?.title}
+			tabindex="-1"
 		>
 			<!-- Header -->
 			<div class="flex items-center justify-between px-6 py-4 border-b border-border flex-shrink-0">
@@ -173,10 +196,11 @@
 				{#if uxState === 'configuring' || uxState === 'previewing' || uxState === 'preview_error'}
 					<!-- Find Pattern -->
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.find_pattern}</label>
+						<label for="bulk-find-pattern" class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.find_pattern}</label>
 						<div class="flex gap-2">
 							<input
 								type="text"
+								id="bulk-find-pattern"
 								bind:value={findPattern}
 								placeholder={_t.translate?.bulk_replace?.find_placeholder}
 								class="flex-1 px-3 py-2 border border-border-strong rounded-lg text-sm focus-visible:ring-2 focus-visible:ring-primary-ring focus-visible:border-primary-ring"
@@ -196,9 +220,10 @@
 
 					<!-- Replacement Text -->
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.replace_with}</label>
+						<label for="bulk-replace-text" class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.replace_with}</label>
 						<input
 							type="text"
+							id="bulk-replace-text"
 							bind:value={replacementText}
 							placeholder={_t.translate?.bulk_replace?.replace_placeholder}
 							class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm focus-visible:ring-2 focus-visible:ring-primary-ring focus-visible:border-primary-ring"
@@ -208,8 +233,9 @@
 
 					<!-- Target Language -->
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.target_language}</label>
+						<label for="bulk-target-language" class="block text-sm font-medium text-text mb-1">{_t.translate?.bulk_replace?.target_language}</label>
 						<select
+							id="bulk-target-language"
 							bind:value={targetLanguage}
 							class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
 						>
@@ -264,8 +290,8 @@
 									{#each affectedRecords.slice(0, 100) as row, i}
 										<tr class="hover:bg-surface-muted">
 											<td class="px-3 py-2 text-text-subtle">{i + 1}</td>
-											<td class="px-3 py-2 text-text max-w-xs truncate">{row.final_value || row.translated_value || ''}</td>
-											<td class="px-3 py-2 text-success font-medium max-w-xs truncate">{previewAfter(row)}</td>
+											<td class="px-3 py-2 text-text max-w-xs truncate">{row.current_value || row.final_value || row.translated_value || ''}</td>
+											<td class="px-3 py-2 text-success font-medium max-w-xs truncate">{row.new_value || ''}</td>
 										</tr>
 									{/each}
 								</tbody>
@@ -308,12 +334,25 @@
 										<span>{_t.translate?.bulk_replace?.submit_to_dict}</span>
 									</label>
 									{#if submitToDict}
-										<textarea
-											bind:value={usageNotes}
-											placeholder={_t.translate?.bulk_replace?.usage_notes_placeholder}
-											class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
-											rows="2"
-										></textarea>
+										<div class="space-y-2 pl-6">
+											<label class="block text-xs font-medium text-text-muted" for="bulk-dict-select">{_t.translate?.bulk_replace?.dictionary || 'Словарь'}</label>
+											<select
+												id="bulk-dict-select"
+												bind:value={selectedDictId}
+												class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
+											>
+												<option value="">{_t.translate?.bulk_replace?.select_dictionary || 'Выберите словарь...'}</option>
+												{#each dictionaries as dict}
+													<option value={dict.id}>{dict.name}</option>
+												{/each}
+											</select>
+											<textarea
+												bind:value={usageNotes}
+												placeholder={_t.translate?.bulk_replace?.usage_notes_placeholder}
+												class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
+												rows="2"
+											></textarea>
+										</div>
 									{/if}
 								</div>
 
@@ -339,7 +378,7 @@
 				<!-- Applying State -->
 				{#if uxState === 'applying'}
 					<div class="flex items-center justify-center gap-3 py-8">
-						<div class="animate-spin rounded-full h-6 w-6 border-b-2 border-warning" />
+						<div class="animate-spin rounded-full h-6 w-6 border-b-2 border-warning"></div>
 						<span class="text-sm text-text-muted">{_t.translate?.bulk_replace?.applying}</span>
 					</div>
 				{/if}

frontend/src/lib/components/translate/ConfigTabForm.svelte

@@ -207,7 +207,7 @@
           rows="2"
           class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm focus-visible:ring-2 focus-visible:ring-primary-ring focus-visible:border-primary-ring"
           placeholder={_t.translate?.config?.description_placeholder}
-        />
+        ></textarea>
       </div>
     </div>
   </section>
@@ -275,15 +275,15 @@
     </div>
 
     {#if isColumnsLoading}
-      <div class="mt-4 h-8 bg-surface-muted rounded animate-pulse" />
+      <div class="mt-4 h-8 bg-surface-muted rounded animate-pulse"></div>
     {/if}
 
     {#if columnList.length > 0}
       <div class="mt-4">
-        <label class="block text-sm font-medium text-text mb-2">
+        <label class="block text-sm font-medium text-text mb-2" for="available-columns">
           {_t.translate?.config?.available_columns.replace('{count}', columnList.length)}
         </label>
-        <div class="max-h-40 overflow-y-auto border border-border rounded-lg divide-y divide-border">
+        <div id="available-columns" class="max-h-40 overflow-y-auto border border-border rounded-lg divide-y divide-border">
           {#each columnList as col}
             <div class="px-3 py-1.5 text-sm flex items-center gap-2 {isVirtual(col.name) ? 'bg-warning-light' : ''}">
               <span class="font-mono text-xs">{col.name}</span>
@@ -397,6 +397,7 @@
                   targetKeyCols = targetKeyCols.filter((_, i) => i !== idx);
                 }}
                 class="p-1 text-text-subtle hover:text-destructive"
+                aria-label={_t.translate?.config?.remove_key_column || 'Remove key column'}
               >
                 <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                   <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />

frontend/src/lib/components/translate/CorrectionCell.svelte

@@ -34,8 +34,9 @@
   // @RATIONALE Svelte 5 store detection fails for `$t` in deeply nested templates.
   //             Use getT() + $derived to keep reactivity to locale changes.
   const _t = $derived(getT());
-	let editValue = $state(value);
-	let displayValue = $state(value);
+	const initFromProp = () => value;
+	let editValue = $state(initFromProp());
+	let displayValue = $state(initFromProp());
 	let errorMessage = $state('');
 	let dictPopupOpen = $state(false);
 	let dictionaries = $state([]);
@@ -43,6 +44,7 @@
 	let editableContextData = $state(null);
 	let editableUsageNotes = $state('');
 	let contextEditMode = $state(false);
+	let editInput = $state(null);
 
 	$effect(() => {
 		// Reset if value prop changes externally
@@ -53,6 +55,13 @@
 		}
 	});
 
+	// Auto-focus edit input when entering editing mode
+	$effect(() => {
+		if (uxState === 'editing' && editInput) {
+			editInput.focus();
+		}
+	});
+
 	function startEditing() {
 		editValue = value;
 		uxState = 'editing';
@@ -158,9 +167,9 @@
 {:else if uxState === 'editing'}
 	<div class="flex flex-col gap-1">
 		<input
+			bind:this={editInput}
 			bind:value={editValue}
 			class="border border-primary-ring rounded px-2 py-1 text-sm w-full focus-visible:ring-2 focus-visible:ring-primary-ring focus-visible:border-primary-ring"
-			autofocus
 			onkeydown={(e) => {
 				if (e.key === 'Enter') saveEdit();
 				if (e.key === 'Escape') cancelEditing();
@@ -187,7 +196,7 @@
 <!-- Saving mode -->
 {:else if uxState === 'saving'}
 	<div class="flex items-center gap-2 px-2 py-1">
-		<div class="animate-spin rounded-full h-3 w-3 border-b-2 border-primary-ring" />
+		<div class="animate-spin rounded-full h-3 w-3 border-b-2 border-primary-ring"></div>
 		<span class="text-xs text-text-muted">{_t.translate?.corrections?.cell_saving}</span>
 	</div>
 
@@ -209,7 +218,7 @@
 <!-- Submitting to dictionary mode -->
 {:else if uxState === 'submitting_to_dict'}
 	<div class="flex items-center gap-2 px-2 py-1">
-		<div class="animate-spin rounded-full h-3 w-3 border-b-2 border-warning" />
+		<div class="animate-spin rounded-full h-3 w-3 border-b-2 border-warning"></div>
 		<span class="text-xs text-warning">{_t.translate?.corrections?.cell_submitting}</span>
 	</div>
 
@@ -236,11 +245,14 @@
 
 <!-- Dictionary Selection Popup -->
 {#if dictPopupOpen}
+		<!-- svelte-ignore a11y_no_static_element_interactions -->
 	<div
 		class="fixed inset-0 z-50 flex items-center justify-center bg-black/40"
 		onclick={handleCloseDictPopup}
+		onkeydown={(e) => e.key === 'Escape' && handleCloseDictPopup()}
+		role="presentation"
 	>
-		<div class="bg-surface-card rounded-lg shadow-xl p-6 w-full max-w-lg mx-4 max-h-[80vh] overflow-y-auto" onclick={(e) => e.stopPropagation()}>
+		<div class="bg-surface-card rounded-lg shadow-xl p-6 w-full max-w-lg mx-4 max-h-[80vh] overflow-y-auto" onclick={(e) => e.stopPropagation()} onkeydown={(e) => e.key === 'Escape' && handleCloseDictPopup()} tabindex="-1">
 			<h3 class="text-sm font-semibold text-text mb-4">{_t.translate?.corrections?.cell_submit_to_dict}</h3>
 			<div class="space-y-3">
 				{#if sourceLanguage}
@@ -249,12 +261,13 @@
 					</div>
 				{/if}
 				<div>
-					<label class="block text-xs font-medium text-text mb-1">{_t.translate?.corrections?.cell_corrected_value}</label>
+					<span class="block text-xs font-medium text-text mb-1">{_t.translate?.corrections?.cell_corrected_value}</span>
 					<div class="px-3 py-2 bg-surface-muted border border-border rounded text-sm">{editValue}</div>
 				</div>
 				<div>
-					<label class="block text-xs font-medium text-text mb-1">{_t.translate?.corrections?.dictionary}</label>
+					<label class="block text-xs font-medium text-text mb-1" for="corr-cell-dictionary">{_t.translate?.corrections?.dictionary}</label>
 					<select
+						id="corr-cell-dictionary"
 						bind:value={selectedDictId}
 						class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
 					>
@@ -298,8 +311,9 @@
 
 				<!-- Usage Notes Section (T128) -->
 				<div>
-					<label class="block text-xs font-medium text-text mb-1">{_t.translate?.corrections?.cell_usage_notes}</label>
+					<label class="block text-xs font-medium text-text mb-1" for="corr-cell-usage-notes">{_t.translate?.corrections?.cell_usage_notes}</label>
 					<textarea
+						id="corr-cell-usage-notes"
 						bind:value={editableUsageNotes}
 						class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
 						rows="2"

frontend/src/lib/components/translate/RunTabContent.svelte

@@ -257,7 +257,7 @@
       <div class="bg-surface-card border border-border rounded-lg p-4">
         <div class="grid grid-cols-6 gap-3">
           {#each Array(6) as _}
-            <div class="h-16 bg-surface-muted rounded animate-pulse" />
+            <div class="h-16 bg-surface-muted rounded animate-pulse"></div>
           {/each}
         </div>
       </div>

frontend/src/lib/components/translate/ScheduleConfig.svelte

@@ -182,12 +182,13 @@
 			<!-- Cron expression -->
 			<div>
 				<span class="flex items-center gap-1.5 mb-1">
-				<label class="text-sm font-medium text-text">{_t.translate?.schedule?.cron_expression || 'Cron Expression'}</label>
+				<label for="cron-expression" class="text-sm font-medium text-text">{_t.translate?.schedule?.cron_expression || 'Cron Expression'}</label>
 				<HelpTooltip text={_t.translate?.schedule?.help_cron || ""} />
 				</span>
 				<div class="flex gap-2">
 					<input
 						type="text"
+						id="cron-expression"
 						bind:value={cronExpression}
 						placeholder="0 2 * * *"
 						disabled={!isEditing}
@@ -213,10 +214,11 @@
 			<!-- Timezone -->
 			<div>
 				<span class="flex items-center gap-1.5 mb-1">
-				<label class="text-sm font-medium text-text">{_t.translate?.schedule?.timezone || 'Timezone'}</label>
+				<label for="timezone-select" class="text-sm font-medium text-text">{_t.translate?.schedule?.timezone || 'Timezone'}</label>
 				<HelpTooltip text={_t.translate?.schedule?.help_timezone || ""} />
 				</span>
 				<select
+					id="timezone-select"
 					bind:value={timezone}
 					disabled={!isEditing}
 					class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm disabled:bg-surface-muted disabled:text-text-muted"
@@ -230,12 +232,12 @@
 			<!-- Execution mode -->
 			<div>
 				<span class="flex items-center gap-1.5 mb-1">
-				<label class="text-sm font-medium text-text">{_t.translate?.schedule?.execution_mode || 'Execution Mode'}</label>
+				<label for="exec-mode-full" class="text-sm font-medium text-text">{_t.translate?.schedule?.execution_mode || 'Execution Mode'}</label>
 				<HelpTooltip text={_t.translate?.schedule?.help_execution_mode || ""} />
 				</span>
 				<div class="flex gap-4">
 					<label class="inline-flex items-center cursor-pointer">
-						<input type="radio" bind:group={executionMode} value="full" class="sr-only peer" disabled={!isEditing} />
+						<input type="radio" id="exec-mode-full" bind:group={executionMode} value="full" class="sr-only peer" disabled={!isEditing} />
 						<div class="px-4 py-2 text-sm border border-border-strong rounded-lg peer-checked:border-primary-ring peer-checked:bg-primary-light peer-checked:text-primary hover:border-border-strong {isEditing ? '' : 'opacity-70'}">
 							<div class="font-medium">{_t.translate?.schedule?.mode_full || 'Full'}</div>
 							<div class="text-xs text-text-muted mt-0.5">{_t.translate?.schedule?.mode_full_desc || 'Translate all rows every run'}</div>

frontend/src/lib/components/translate/TermCorrectionPopup.svelte

@@ -144,12 +144,13 @@
 </script>
 
 {#if uxState !== 'closed'}
-	<div class="fixed inset-0 z-50 flex items-center justify-center bg-black/40" onclick={handleClose}>
-		<div class="bg-surface-card rounded-lg shadow-xl p-6 w-full max-w-md mx-4" onclick={(e) => e.stopPropagation()}>
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<div class="fixed inset-0 z-50 flex items-center justify-center bg-black/40" onclick={handleClose} onkeydown={(e) => e.key === 'Escape' && handleClose()} role="presentation">
+		<div class="bg-surface-card rounded-lg shadow-xl p-6 w-full max-w-md mx-4" onclick={(e) => e.stopPropagation()} onkeydown={(e) => e.key === 'Escape' && handleClose()} tabindex="-1">
 			<!-- Header -->
 			<div class="flex items-center justify-between mb-4">
 				<h3 class="text-lg font-semibold text-text">{_t.translate?.term_correction?.title}</h3>
-				<button onclick={handleClose} class="text-text-subtle hover:text-text-muted">
+				<button onclick={handleClose} class="text-text-subtle hover:text-text-muted" aria-label={_t.translate?.term_correction?.close || 'Close'}>
 					<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
 						<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
 					</svg>
@@ -234,10 +235,11 @@
 
 					<!-- Usage notes -->
 					<div>
-						<label class="block text-xs font-medium text-text-muted mb-1">
+						<label class="block text-xs font-medium text-text-muted mb-1" for="term-corr-usage-notes">
 							📝 {_t.translate?.term_correction?.usage_notes}
 						</label>
 						<textarea
+							id="term-corr-usage-notes"
 							bind:value={contextUsageNotes}
 							placeholder={_t.translate?.term_correction?.usage_notes_placeholder}
 							rows="2"
@@ -246,24 +248,25 @@
 					</div>
 
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.source_term}</label>
-						<input type="text" readonly value={sourceTerm} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm" />
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-source-term">{_t.translate?.term_correction?.source_term}</label>
+						<input id="term-corr-source-term" type="text" readonly value={sourceTerm} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm" />
 					</div>
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.incorrect_target}</label>
-						<input type="text" readonly value={incorrectTarget} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm" />
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-incorrect-target">{_t.translate?.term_correction?.incorrect_target}</label>
+						<input id="term-corr-incorrect-target" type="text" readonly value={incorrectTarget} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm" />
 					</div>
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.source_language}</label>
-						<input type="text" readonly 					value={sourceLanguage || _t.translate?.term_correction?.auto_detected} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm font-mono" />
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-source-lang">{_t.translate?.term_correction?.source_language}</label>
+						<input id="term-corr-source-lang" type="text" readonly value={sourceLanguage || _t.translate?.term_correction?.auto_detected} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm font-mono" />
 					</div>
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.target_language}</label>
-						<input type="text" readonly value={targetLanguage || '—'} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm font-mono" />
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-target-lang">{_t.translate?.term_correction?.target_language}</label>
+						<input id="term-corr-target-lang" type="text" readonly value={targetLanguage || '—'} class="w-full px-3 py-2 bg-surface-muted border border-border rounded-lg text-sm font-mono" />
 					</div>
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.corrected_target}</label>
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-corrected-target">{_t.translate?.term_correction?.corrected_target}</label>
 						<input
+							id="term-corr-corrected-target"
 							type="text"
 							bind:value={correctedTarget}
 							placeholder={_t.translate?.term_correction?.corrected_placeholder}
@@ -271,8 +274,9 @@
 						/>
 					</div>
 					<div>
-						<label class="block text-sm font-medium text-text mb-1">{_t.translate?.term_correction?.dictionary}</label>
+						<label class="block text-sm font-medium text-text mb-1" for="term-corr-dictionary">{_t.translate?.term_correction?.dictionary}</label>
 						<select
+							id="term-corr-dictionary"
 							bind:value={selectedDictId}
 							class="w-full px-3 py-2 border border-border-strong rounded-lg text-sm"
 						>

frontend/src/lib/components/translate/TranslationPreview.svelte

@@ -252,12 +252,13 @@
 				{_t.translate?.preview?.title} — {_t.translate?.preview?.sample_size} {sampleSize}
 			</p>
 			<div class="flex items-center justify-center gap-3 mb-4">
-				<label class="text-sm text-text-muted">{_t.translate?.preview?.sample_size}</label>
+				<label for="preview-sample-size" class="text-sm text-text-muted">{_t.translate?.preview?.sample_size}</label>
 				<input
 					type="range"
 					bind:value={sampleSize}
 					min="1"
 					max="100"
+					id="preview-sample-size"
 					class="w-40 accent-blue-600"
 				/>
 				<span class="text-sm font-mono text-text w-8 text-left">{sampleSize}</span>
@@ -282,12 +283,12 @@
 	{:else if uxState === 'loading'}
 		<div class="bg-surface-card border border-border rounded-lg p-6">
 			<div class="flex items-center gap-3 mb-4">
-				<div class="animate-spin rounded-full h-5 w-5 border-b-2 border-primary-ring" />
+				<div class="animate-spin rounded-full h-5 w-5 border-b-2 border-primary-ring"></div>
 				<span class="text-sm text-text-muted">{_t.translate?.preview?.running_preview}</span>
 			</div>
 			<div class="space-y-3">
 				{#each Array(3) as _}
-					<div class="h-12 bg-surface-muted rounded animate-pulse" />
+					<div class="h-12 bg-surface-muted rounded animate-pulse"></div>
 				{/each}
 			</div>
 		</div>
@@ -435,7 +436,7 @@
 										<textarea
 											bind:value={editValues[langKey]}
 											class="w-full px-2 py-1 border border-primary-ring rounded text-xs focus-visible:ring-2 focus-visible:ring-primary-ring min-h-[50px]"
-										/>
+										></textarea>
 										<div class="flex gap-1 mt-1">
 											<button
 												onclick={() => saveLangEdit(row.id, lang)}

frontend/src/lib/components/translate/TranslationRunGlobalIndicator.svelte

@@ -147,7 +147,7 @@
 					<!-- Header row: spinner + label + actions -->
 					<div class="flex items-center justify-between mb-2">
 						<div class="flex items-center gap-2">
-							<div class="animate-spin rounded-full h-4 w-4 border-b-2 border-primary-ring" />
+							<div class="animate-spin rounded-full h-4 w-4 border-b-2 border-primary-ring"></div>
 							<span class="text-sm font-semibold text-text">{label}</span>
 						</div>
 						<div class="flex items-center gap-2">

frontend/src/lib/components/translate/TranslationRunProgress.svelte

@@ -109,7 +109,7 @@
 			<!-- Phase indicator -->
 			<div class="flex items-center justify-between">
 				<div class="flex items-center gap-2">
-					<div class="animate-spin rounded-full h-4 w-4 border-b-2 border-primary-ring" />
+					<div class="animate-spin rounded-full h-4 w-4 border-b-2 border-primary-ring"></div>
 					<span class="text-sm font-medium text-text">
 						{uxState === 'inserting' ? _t.translate?.run?.insert_phase : _t.translate?.run?.translate_phase}
 					</span>
@@ -128,7 +128,7 @@
 				<div
 					class="bg-primary h-2.5 rounded-full transition-all duration-500"
 					style="width: {Math.min(progressPct, 100)}%"
-				/>
+				></div>
 			</div>
 
 			<!-- Statistics -->