feat: robust automatic DB migration for Docker deployments

Backup before migration (pg_dump/SQLite copy), DB connection wait with
retries, idempotent prisma migrate deploy, old backup cleanup (keep 5),
and server refuses to start if migration fails.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

memento-note/app/actions/title-suggestions.ts

@@ -4,6 +4,7 @@ import { auth } from '@/auth'
 import { titleSuggestionService } from '@/lib/ai/services/title-suggestion.service'
 import { prisma } from '@/lib/prisma'
 import { revalidatePath } from 'next/cache'
+import { createNoteHistorySnapshot, isNoteHistoryEnabledForUser } from '@/lib/note-history'
 
 export interface GenerateTitlesResponse {
   suggestions: Array<{
@@ -82,6 +83,19 @@ export async function applyTitleSuggestion(
       }
     })
 
+    try {
+      const historyEnabled = await isNoteHistoryEnabledForUser(session.user.id)
+      if (historyEnabled) {
+        await createNoteHistorySnapshot({
+          noteId,
+          userId: session.user.id,
+          reason: 'title-suggestion',
+        })
+      }
+    } catch (snapshotError) {
+      console.error('[HISTORY] Failed to create snapshot after title suggestion:', snapshotError)
+    }
+
     revalidatePath('/')
     revalidatePath(`/note/${noteId}`)
   } catch (error) {