Initial commit: Inner OS v1

Full-stack inner development operating system built on Next.js 16 + Prisma 7 + PostgreSQL + OpenAI + Clerk.
Generates personalized daily mental training tasks, collects reflection, updates user state, and provides internal reward feedback.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

prisma/schema.prisma

@@ -0,0 +1,126 @@
+generator client {
+  provider = "prisma-client"
+  output   = "../src/generated/prisma"
+}
+
+datasource db {
+  provider = "postgresql"
+}
+
+enum TaskType {
+  attention_training
+  emotion_awareness
+  stress_regulation
+  cognitive_clarity
+  integration
+}
+
+enum TaskStatus {
+  pending
+  completed
+  expired
+}
+
+enum RewardEventType {
+  daily_completion
+  streak_3
+  streak_7
+  streak_14
+  streak_30
+  stage_up
+  first_session
+}
+
+model User {
+  id         String    @id // Clerk user ID
+  email      String    @unique
+  createdAt  DateTime  @default(now()) @map("created_at")
+
+  state         UserState?     @relation("UserState")
+  sessions      Session[]
+  tasks         Task[]
+  rewardEvents  RewardEvent[]
+  weeklySummary WeeklySummary?
+
+  @@map("users")
+}
+
+model UserState {
+  id                      String   @id @default(uuid())
+  userId                  String   @unique @map("user_id")
+  attentionLevel          Int      @default(50) @map("attention_level")
+  emotionStability        Int      @default(50) @map("emotion_stability")
+  stressLevel             Int      @default(50) @map("stress_level")
+  practiceStage           Int      @default(0) @map("practice_stage")
+  consistencyScore        Int      @default(0) @map("consistency_score")
+  streakDays              Int      @default(0) @map("streak_days")
+  totalSessionsCompleted  Int      @default(0) @map("total_sessions_completed")
+  onboardingCompleted     Boolean  @default(false) @map("onboarding_completed")
+  lastSessionDate         DateTime? @map("last_session_date")
+  updatedAt               DateTime @updatedAt @map("updated_at")
+
+  user User @relation("UserState", fields: [userId], references: [id], onDelete: Cascade)
+
+  @@map("user_states")
+}
+
+model Session {
+  id              String    @id @default(uuid())
+  userId          String    @map("user_id")
+  taskType        TaskType  @map("task_type")
+  taskDescription String    @map("task_description")
+  durationSeconds Int       @default(300) @map("duration_seconds")
+  completed       Boolean   @default(false)
+  focusScore      Int?      @map("focus_score")
+  emotionScore    Int?      @map("emotion_score")
+  notes           String?
+  createdAt       DateTime  @default(now()) @map("created_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId, createdAt])
+  @@map("sessions")
+}
+
+model Task {
+  id          String     @id @default(uuid())
+  userId      String     @map("user_id")
+  type        TaskType
+  difficulty  Int        @default(1)
+  duration    Int        @default(5)
+  description String
+  reasonJson  String     @default("{}") @map("reason_json")
+  status      TaskStatus @default(pending)
+  createdAt   DateTime   @default(now()) @map("created_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId, createdAt])
+  @@index([userId, status])
+  @@map("tasks")
+}
+
+model RewardEvent {
+  id        String          @id @default(uuid())
+  userId    String          @map("user_id")
+  type      RewardEventType
+  message   String
+  createdAt DateTime        @default(now()) @map("created_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId, createdAt])
+  @@map("reward_events")
+}
+
+model WeeklySummary {
+  id        String    @id @default(uuid())
+  userId    String    @unique @map("user_id")
+  summary   String?
+  weekStart DateTime  @map("week_start")
+  createdAt DateTime  @default(now()) @map("created_at")
+
+  user User @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@map("weekly_summaries")
+}