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>

src/app/api/user/state/route.ts

@@ -0,0 +1,71 @@
+import { auth } from "@clerk/nextjs/server";
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/prisma";
+
+export async function GET() {
+  const { userId } = await auth();
+  if (!userId) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+  const state = await prisma.userState.findUnique({
+    where: { userId },
+    select: {
+      attentionLevel: true,
+      emotionStability: true,
+      stressLevel: true,
+      practiceStage: true,
+      consistencyScore: true,
+      streakDays: true,
+      totalSessionsCompleted: true,
+      onboardingCompleted: true,
+      lastSessionDate: true,
+    },
+  });
+
+  if (!state) {
+    return NextResponse.json({
+      state: null,
+      hasStarted: false,
+    });
+  }
+
+  return NextResponse.json({
+    state,
+    hasStarted: true,
+  });
+}
+
+export async function PATCH(req: Request) {
+  const { userId } = await auth();
+  if (!userId) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+  const body = await req.json().catch(() => null);
+  if (!body || typeof body !== "object") {
+    return NextResponse.json({ error: "Invalid request body" }, { status: 400 });
+  }
+
+  const { onboardingCompleted } = body as { onboardingCompleted?: boolean };
+
+  const state = await prisma.userState.upsert({
+    where: { userId },
+    create: {
+      userId,
+      onboardingCompleted: onboardingCompleted ?? false,
+    },
+    update: {
+      ...(onboardingCompleted !== undefined ? { onboardingCompleted } : {}),
+    },
+    select: {
+      attentionLevel: true,
+      emotionStability: true,
+      stressLevel: true,
+      practiceStage: true,
+      consistencyScore: true,
+      streakDays: true,
+      totalSessionsCompleted: true,
+      onboardingCompleted: true,
+      lastSessionDate: true,
+    },
+  });
+
+  return NextResponse.json({ state });
+}