Settings flow rework, purge sessions, confirmation gate

Settings flow:
- Each section has its own Save button — no ambiguous shared button
- Appearance & Defaults: Save covers welcome message + output formats
- Privacy & Data: Save covers privacy toggle + retention hours
- Security: Change Password button is self-contained
- Bottom note clarifies all settings reset on server restart

Purge improvements:
- Now clears orphaned sessions (sessions with no remaining jobs)
- 'Sure?' confirmation gate on manual purge (3s timeout revert)
- Purge result shows sessions_deleted count
- Cleaner result display: 'X jobs removed' instead of 'Rows deleted: X'

SSE broker:
- publish_all() broadcasts to all sessions (used for purge)

backend/app/services/purge.py

@@ -93,6 +93,20 @@ async def run_purge(
 
     await db.commit()
 
+    # Clean up orphaned sessions (sessions with no remaining jobs)
+    if purge_all:
+        orphan_cursor = await db.execute(
+            """
+            DELETE FROM sessions
+            WHERE id NOT IN (SELECT DISTINCT session_id FROM jobs)
+            """
+        )
+        sessions_deleted = orphan_cursor.rowcount
+        await db.commit()
+        logger.info("Purge: removed %d orphaned sessions", sessions_deleted)
+    else:
+        sessions_deleted = 0
+
     # Count skipped active jobs for observability
     active_cursor = await db.execute(
         "SELECT COUNT(*) FROM jobs WHERE status IN ('queued', 'extracting', 'downloading')"
@@ -105,6 +119,7 @@ async def run_purge(
         "files_deleted": files_deleted,
         "files_missing": files_missing,
         "active_skipped": active_skipped,
+        "sessions_deleted": sessions_deleted,
         "deleted_job_ids": deleted_job_ids,
     }
 

frontend/src/components/AdminPanel.vue

@@ -23,6 +23,9 @@ const defaultAudioFormat = ref('auto')
 const settingsSaved = ref(false)
 const privacyMode = ref(false)
 const privacyRetentionHours = ref(24)
+const privacySaved = ref(false)
+const purgeConfirming = ref(false)
+let purgeConfirmTimer: ReturnType<typeof setTimeout> | null = null
 
 // Change password state
 const currentPassword = ref('')
@@ -70,14 +73,35 @@ async function saveSettings() {
     welcome_message: welcomeMessage.value,
     default_video_format: defaultVideoFormat.value,
     default_audio_format: defaultAudioFormat.value,
+  })
+  if (ok) {
+    await configStore.loadConfig()
+    settingsSaved.value = true
+    setTimeout(() => { settingsSaved.value = false }, 3000)
+  }
+}
+
+async function savePrivacy() {
+  privacySaved.value = false
+  const ok = await store.updateSettings({
     privacy_mode: privacyMode.value,
     privacy_retention_hours: privacyRetentionHours.value,
   })
   if (ok) {
-    // Reload public config so main page picks up new defaults
     await configStore.loadConfig()
-    settingsSaved.value = true
+    privacySaved.value = true
-    setTimeout(() => { settingsSaved.value = false }, 3000)
+    setTimeout(() => { privacySaved.value = false }, 3000)
+  }
+}
+
+function handlePurgeClick() {
+  if (purgeConfirming.value) {
+    purgeConfirming.value = false
+    if (purgeConfirmTimer) clearTimeout(purgeConfirmTimer)
+    store.triggerPurge()
+  } else {
+    purgeConfirming.value = true
+    purgeConfirmTimer = setTimeout(() => { purgeConfirming.value = false }, 3000)
   }
 }
 
@@ -290,18 +314,11 @@ function formatFilesize(bytes: number | null): string {
           </div>
 
           <div class="settings-actions">
-            <button
+            <button @click="saveSettings" :disabled="store.isLoading" class="btn-save">
-              @click="saveSettings"
+              {{ store.isLoading ? 'Saving…' : 'Save' }}
-              :disabled="store.isLoading"
-              class="btn-save"
-            >
-              {{ store.isLoading ? 'Saving…' : 'Save Settings' }}
             </button>
             <span v-if="settingsSaved" class="save-confirm">✓ Saved</span>
           </div>
-          <p class="field-hint" style="margin-top: var(--space-sm);">
-            Changes are applied immediately but reset on server restart.
-          </p>
         </div>
 
         <hr class="settings-divider" />
@@ -320,7 +337,7 @@ function formatFilesize(bytes: number | null): string {
             </label>
             <p class="field-hint">
               Automatically purge download history, files, and session data
-              after the retention period. Changes are saved with the button above.
+              after the retention period.
             </p>
             <div v-if="privacyMode" class="retention-setting">
               <label class="retention-label">Retention period</label>
@@ -340,24 +357,33 @@ function formatFilesize(bytes: number | null): string {
             </div>
           </div>
 
-          <div class="settings-field" style="margin-top: var(--space-md);">
+          <div class="settings-actions">
+            <button @click="savePrivacy" :disabled="store.isLoading" class="btn-save">
+              {{ store.isLoading ? 'Saving…' : 'Save' }}
+            </button>
+            <span v-if="privacySaved" class="save-confirm">✓ Saved</span>
+          </div>
+
+          <div class="settings-field" style="margin-top: var(--space-lg);">
             <label>Manual Purge</label>
             <p class="field-hint">
               Immediately clear all completed and failed downloads — removes
-              database records and files from disk. Active downloads are never affected.
+              database records, files from disk, and orphaned sessions.
+              Active downloads are never affected.
             </p>
             <button
-              @click="store.triggerPurge()"
+              @click="handlePurgeClick"
               :disabled="store.isLoading"
               class="btn-purge"
+              :class="{ 'btn-confirm': purgeConfirming }"
             >
-              {{ store.isLoading ? 'Purging…' : 'Run Purge Now' }}
+              {{ store.isLoading ? 'Purging…' : purgeConfirming ? 'Sure?' : 'Run Purge Now' }}
             </button>
             <div v-if="store.purgeResult" class="purge-result">
-              <p>Rows deleted: {{ store.purgeResult.rows_deleted }}</p>
+              <p>{{ store.purgeResult.rows_deleted }} jobs removed</p>
-              <p>Files deleted: {{ store.purgeResult.files_deleted }}</p>
+              <p>{{ store.purgeResult.files_deleted }} files deleted</p>
-              <p>Files already gone: {{ store.purgeResult.files_missing }}</p>
+              <p v-if="store.purgeResult.sessions_deleted">{{ store.purgeResult.sessions_deleted }} sessions cleared</p>
-              <p>Active jobs skipped: {{ store.purgeResult.active_skipped }}</p>
+              <p v-if="store.purgeResult.active_skipped">{{ store.purgeResult.active_skipped }} active jobs skipped</p>
             </div>
           </div>
         </div>
@@ -414,6 +440,10 @@ function formatFilesize(bytes: number | null): string {
             </div>
           </div>
         </div>
+
+        <p class="field-hint" style="margin-top: var(--space-lg);">
+          All settings are applied immediately but reset on server restart.
+        </p>
       </div>
     </template>
   </div>
@@ -532,12 +562,18 @@ h3 {
   color: var(--color-bg);
   font-weight: 600;
   margin-top: var(--space-md);
+  min-width: 130px;
+  transition: background-color 0.15s;
 }
 
 .btn-purge:hover:not(:disabled) {
   background: var(--color-error);
 }
 
+.btn-purge.btn-confirm {
+  background: var(--color-error);
+}
+
 .purge-result {
   margin-top: var(--space-md);
   padding: var(--space-md);

frontend/src/stores/admin.ts

@@ -23,6 +23,7 @@ interface PurgeResult {
   files_deleted: number
   files_missing: number
   active_skipped: number
+  sessions_deleted?: number
 }
 
 export const useAdminStore = defineStore('admin', () => {