chore: update project configuration by adding Prisma dependencies, generating Prisma client, and updating .gitignore; remove package-lock.json

prisma/schema.prisma

@@ -0,0 +1,84 @@
+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "sqlite"
+}
+
+model User {
+  id        String    @id @default(cuid())
+  email     String    @unique
+  name      String?
+  password  String
+  sessions  Session[]
+  createdAt DateTime  @default(now())
+  updatedAt DateTime  @updatedAt
+}
+
+model Session {
+  id           String     @id @default(cuid())
+  title        String
+  collaborator String
+  date         DateTime   @default(now())
+  userId       String
+  user         User       @relation(fields: [userId], references: [id], onDelete: Cascade)
+  items        SwotItem[]
+  actions      Action[]
+  createdAt    DateTime   @default(now())
+  updatedAt    DateTime   @updatedAt
+
+  @@index([userId])
+}
+
+enum SwotCategory {
+  STRENGTH
+  WEAKNESS
+  OPPORTUNITY
+  THREAT
+}
+
+model SwotItem {
+  id          String       @id @default(cuid())
+  content     String
+  category    SwotCategory
+  order       Int          @default(0)
+  sessionId   String
+  session     Session      @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  actionLinks ActionLink[]
+  createdAt   DateTime     @default(now())
+  updatedAt   DateTime     @updatedAt
+
+  @@index([sessionId])
+}
+
+model Action {
+  id          String       @id @default(cuid())
+  title       String
+  description String?
+  priority    Int          @default(0)
+  status      String       @default("todo")
+  dueDate     DateTime?
+  sessionId   String
+  session     Session      @relation(fields: [sessionId], references: [id], onDelete: Cascade)
+  links       ActionLink[]
+  createdAt   DateTime     @default(now())
+  updatedAt   DateTime     @updatedAt
+
+  @@index([sessionId])
+}
+
+model ActionLink {
+  id         String   @id @default(cuid())
+  actionId   String
+  action     Action   @relation(fields: [actionId], references: [id], onDelete: Cascade)
+  swotItemId String
+  swotItem   SwotItem @relation(fields: [swotItemId], references: [id], onDelete: Cascade)
+
+  @@unique([actionId, swotItemId])
+  @@index([actionId])
+  @@index([swotItemId])
+}