Add internal seed endpoint for demo data

Creates 3 proposals (ranking/voting/passed) with votes and final
votes from 3 demo users showing governance lifecycle.

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

src/app/api/internal/seed/route.ts

@@ -0,0 +1,136 @@
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/prisma";
+
+/**
+ * Internal seed endpoint — populates the demo space with sample proposals
+ * and votes. Only reachable from Docker network.
+ *
+ * POST /api/internal/seed { space: "demo" }
+ */
+export async function POST(request: Request) {
+  const body = await request.json();
+  const spaceSlug: string = body.space?.trim();
+  if (!spaceSlug) {
+    return NextResponse.json({ error: "Missing space" }, { status: 400 });
+  }
+
+  const space = await prisma.space.findUnique({ where: { slug: spaceSlug } });
+  if (!space) {
+    return NextResponse.json({ error: "Space not found" }, { status: 404 });
+  }
+
+  // Check if already seeded
+  const existingProposals = await prisma.proposal.count({ where: { spaceId: space.id } });
+  if (existingProposals > 0) {
+    return NextResponse.json({ status: "already_seeded", proposals: existingProposals });
+  }
+
+  // Create demo users (rvote requires email)
+  const alice = await prisma.user.upsert({
+    where: { email: "alice@demo.rspace.online" },
+    update: {},
+    create: { email: "alice@demo.rspace.online", name: "Alice", did: "did:demo:alice" },
+  });
+  const bob = await prisma.user.upsert({
+    where: { email: "bob@demo.rspace.online" },
+    update: {},
+    create: { email: "bob@demo.rspace.online", name: "Bob", did: "did:demo:bob" },
+  });
+  const charlie = await prisma.user.upsert({
+    where: { email: "charlie@demo.rspace.online" },
+    update: {},
+    create: { email: "charlie@demo.rspace.online", name: "Charlie", did: "did:demo:charlie" },
+  });
+
+  // Add as space members with credits
+  for (const user of [alice, bob, charlie]) {
+    await prisma.spaceMember.upsert({
+      where: { userId_spaceId: { userId: user.id, spaceId: space.id } },
+      update: {},
+      create: { userId: user.id, spaceId: space.id, role: "MEMBER", credits: 100 },
+    });
+  }
+
+  const now = new Date();
+  const weekFromNow = new Date(Date.now() + 7 * 86400000);
+
+  // Proposal 1: Active voting (high engagement)
+  const prop1 = await prisma.proposal.create({
+    data: {
+      spaceId: space.id,
+      title: "Increase community meeting frequency to biweekly",
+      description:
+        "Monthly meetings aren't enough to keep momentum. Proposing we switch to biweekly 30-minute check-ins to stay aligned on community projects and share progress.",
+      authorId: alice.id,
+      status: "VOTING",
+      score: 15,
+      votingEndsAt: weekFromNow,
+    },
+  });
+
+  await prisma.vote.createMany({
+    data: [
+      { proposalId: prop1.id, userId: alice.id, weight: 8, creditCost: 64 },
+      { proposalId: prop1.id, userId: bob.id, weight: 5, creditCost: 25 },
+      { proposalId: prop1.id, userId: charlie.id, weight: 2, creditCost: 4 },
+    ],
+  });
+
+  // Proposal 2: In ranking phase (newer)
+  const prop2 = await prisma.proposal.create({
+    data: {
+      spaceId: space.id,
+      title: "Allocate $500 from treasury for public art project",
+      description:
+        "Let's commission a local artist to create a mural for our community space. This would make the entrance more welcoming and showcase our values. Budget covers materials + artist stipend.",
+      authorId: bob.id,
+      status: "RANKING",
+      score: 3,
+    },
+  });
+
+  await prisma.vote.createMany({
+    data: [
+      { proposalId: prop2.id, userId: bob.id, weight: 3, creditCost: 9 },
+    ],
+  });
+
+  // Proposal 3: Passed (shows completed governance)
+  const prop3 = await prisma.proposal.create({
+    data: {
+      spaceId: space.id,
+      title: "Adopt transparent decision-making framework",
+      description:
+        "All community decisions over $100 should go through quadratic voting. This ensures fair representation — those who care more can express stronger preferences, while preventing whale dominance.",
+      authorId: charlie.id,
+      status: "PASSED",
+      score: 22,
+      votingEndsAt: new Date(Date.now() - 3 * 86400000),
+    },
+  });
+
+  await prisma.vote.createMany({
+    data: [
+      { proposalId: prop3.id, userId: alice.id, weight: 10, creditCost: 100 },
+      { proposalId: prop3.id, userId: bob.id, weight: 7, creditCost: 49 },
+      { proposalId: prop3.id, userId: charlie.id, weight: 5, creditCost: 25 },
+    ],
+  });
+
+  await prisma.finalVote.createMany({
+    data: [
+      { proposalId: prop3.id, userId: alice.id, vote: "YES" },
+      { proposalId: prop3.id, userId: bob.id, vote: "YES" },
+      { proposalId: prop3.id, userId: charlie.id, vote: "ABSTAIN" },
+    ],
+  });
+
+  return NextResponse.json({
+    status: "seeded",
+    space: spaceSlug,
+    proposals: 3,
+    votes: 7,
+    finalVotes: 3,
+    users: 3,
+  }, { status: 201 });
+}