feat: expenses, report and day log commands

prisma/schema.prisma

@@ -0,0 +1,39 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider  = "postgresql"
+  url       = env("POSTGRES_PRISMA_URL") // uses connection pooling
+  directUrl = env("POSTGRES_URL_NON_POOLING") // uses a direct connection
+}
+
+model Expense {
+  id          String   @id @default(cuid())
+  description String
+  cost        Float
+  deleted     Boolean  @default(false)
+  createdAt   DateTime @default(now())
+  updatedAt   DateTime @updatedAt
+  categoryId  String
+  category    Category @relation(fields: [categoryId], references: [id])
+
+  @@index([categoryId])
+}
+
+model Category {
+  id        String    @id @default(cuid())
+  name      String    @unique
+  createdAt DateTime  @default(now())
+  expenses  Expense[]
+}
+
+model DayLog {
+  id        String   @id @default(cuid())
+  date      DateTime @unique // When querying, ensure date is set to midnight UTC
+  comments  Json
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  @@index([date])
+}