feat: add Weekly Check-in feature with models, UI components, and session management for enhanced team collaboration

prisma/schema.prisma

@@ -25,6 +25,10 @@ model User {
   yearReviewSessions      YearReviewSession[]
   sharedYearReviewSessions YRSessionShare[]
   yearReviewSessionEvents  YRSessionEvent[]
+  // Weekly Check-in relations
+  weeklyCheckInSessions      WeeklyCheckInSession[]
+  sharedWeeklyCheckInSessions WCISessionShare[]
+  weeklyCheckInSessionEvents  WCISessionEvent[]
   // Teams & OKRs relations
   createdTeams  Team[]
   teamMembers   TeamMember[]
@@ -365,3 +369,88 @@ model KeyResult {
   @@index([okrId])
   @@index([okrId, order])
 }
+
+// ============================================
+// Weekly Check-in Workshop
+// ============================================
+
+enum WeeklyCheckInCategory {
+  WENT_WELL      // Ce qui s'est bien passé
+  WENT_WRONG     // Ce qui s'est mal passé
+  CURRENT_FOCUS  // Les enjeux du moment (je me concentre sur ...)
+  NEXT_FOCUS     // Les prochains enjeux
+}
+
+enum Emotion {
+  PRIDE         // Fierté
+  JOY           // Joie
+  SATISFACTION  // Satisfaction
+  GRATITUDE     // Gratitude
+  CONFIDENCE    // Confiance
+  FRUSTRATION   // Frustration
+  WORRY         // Inquiétude
+  DISAPPOINTMENT // Déception
+  EXCITEMENT    // Excitement
+  ANTICIPATION  // Anticipation
+  DETERMINATION // Détermination
+  NONE          // Aucune émotion
+}
+
+model WeeklyCheckInSession {
+  id          String              @id @default(cuid())
+  title       String
+  participant String              // Nom du participant
+  date        DateTime            @default(now())
+  userId      String
+  user        User                @relation(fields: [userId], references: [id], onDelete: Cascade)
+  items       WeeklyCheckInItem[]
+  shares      WCISessionShare[]
+  events      WCISessionEvent[]
+  createdAt   DateTime            @default(now())
+  updatedAt   DateTime            @updatedAt
+
+  @@index([userId])
+  @@index([date])
+}
+
+model WeeklyCheckInItem {
+  id          String                @id @default(cuid())
+  content     String
+  category    WeeklyCheckInCategory
+  emotion     Emotion               @default(NONE)
+  order       Int                   @default(0)
+  sessionId   String
+  session     WeeklyCheckInSession  @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  createdAt   DateTime              @default(now())
+  updatedAt   DateTime              @updatedAt
+
+  @@index([sessionId])
+  @@index([sessionId, category])
+}
+
+model WCISessionShare {
+  id        String              @id @default(cuid())
+  sessionId String
+  session   WeeklyCheckInSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  userId    String
+  user      User                @relation(fields: [userId], references: [id], onDelete: Cascade)
+  role      ShareRole           @default(EDITOR)
+  createdAt DateTime            @default(now())
+
+  @@unique([sessionId, userId])
+  @@index([sessionId])
+  @@index([userId])
+}
+
+model WCISessionEvent {
+  id        String              @id @default(cuid())
+  sessionId String
+  session   WeeklyCheckInSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  userId    String
+  user      User                @relation(fields: [userId], references: [id], onDelete: Cascade)
+  type      String              // ITEM_CREATED, ITEM_UPDATED, ITEM_DELETED, etc.
+  payload   String              // JSON payload
+  createdAt DateTime            @default(now())
+
+  @@index([sessionId, createdAt])
+}