v1.1.0: session guard on all game routes + register + sign-in screen (ISS-107)

app/api/events/route.test.ts

@@ -2,9 +2,12 @@ import fs from 'node:fs/promises';
 import os from 'node:os';
 import path from 'node:path';
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import { createSession } from '@/lib/auth';
+import { getGameDb } from '@/lib/db/client';
 import { GET } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a throwaway file so
@@ -12,6 +15,8 @@ beforeAll(async () => {
   // vitest gives each test file its own module registry (fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-events-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'events.db');
+  // v1.1.0 (ISS-107): /api/events is session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -20,8 +25,18 @@ afterAll(async () => {
 });
 
 describe('GET /api/events', () => {
+  // v1.1.0 (ISS-107): EventSource cannot set headers, so the client passes the session as a query
+  // param — this test exercises exactly that path (requireAuthSse).
+  const req = () => new Request(`http://localhost/api/events?session=${sessionId}`);
+
+  it('rejects an unauthenticated request with 401', async () => {
+    const res = await GET(new Request('http://localhost/api/events'));
+    expect(res.status).toBe(401);
+    expect(((await res.json()) as { error: string }).error).toMatch(/authentication required/i);
+  });
+
   it('streams SSE with the current snapshot as the first event', async () => {
-    const res = await GET();
+    const res = await GET(req());
     expect(res.status).toBe(200);
     expect(res.headers.get('content-type')).toContain('text/event-stream');
     expect(res.headers.get('cache-control')).toBe('no-cache');

app/api/events/route.ts

@@ -1,3 +1,4 @@
+import { requireAuthSse } from '@/lib/auth';
 import { getStateSnapshot, sseFrame } from '@/lib/game/state';
 import { subscribe } from '@/lib/sse';
 
@@ -5,12 +6,19 @@ import { subscribe } from '@/lib/sse';
 // then one after every sim tick (broadcast from lib/sim/engine.ts). One-way push; player actions
 // stay REST POSTs. Heartbeats keep idle proxies from dropping the connection. ISS-133 (v0.59.0):
 // frames carry the sseFrame projection (terminal package history dropped) — same shape as the
-// pushed frames, so a connect never costs one full-history frame.
+// pushed frames, so a connect never costs one full-history frame. v1.1.0 (ISS-107): guarded —
+// EventSource cannot set headers, so the session comes from X-Flight-Session OR ?session=
+// (requireAuthSse). ponytail: validated at CONNECT only — a session deleted/expired mid-stream keeps
+// receiving pushes until it reconnects (private infra, 7-day sessions; per-push re-validation would
+// be one indexed lookup per tick if that ever matters).
 
 const encoder = new TextEncoder();
 const HEARTBEAT_MS = 15_000;
 
-export async function GET() {
+export async function GET(req: Request) {
+  const auth = await requireAuthSse(req);
+  if (!auth.ok) return auth.response;
+
   let heartbeat: ReturnType<typeof setInterval> | null = null;
   let unsubscribe: (() => void) | null = null;
   const cleanup = () => {

app/api/market/buy-plane/route.test.ts

@@ -4,16 +4,20 @@ import path from 'node:path';
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { getLocalPlayer, updateLocalPlayerEconomy } from '@/lib/db/localPlayer';
 import { getGameDb } from '@/lib/db/client';
+import { createSession } from '@/lib/auth';
 import { PLANE_TYPES } from '@/lib/game/catalog';
 import { POST } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
   // throwaway file (fresh module registry per test file → fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-buy-api-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'buy.db');
+  // v1.1.0 (ISS-107): action routes are session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -21,7 +25,14 @@ afterAll(async () => {
   await fs.rm(dir, { recursive: true, force: true });
 });
 
-const post = (body: unknown) => POST(new Request('http://localhost/api/market/buy-plane', { method: 'POST', body: JSON.stringify(body) }));
+const post = (body: unknown) =>
+  POST(
+    new Request('http://localhost/api/market/buy-plane', {
+      method: 'POST',
+      headers: { 'X-Flight-Session': sessionId },
+      body: JSON.stringify(body),
+    }),
+  );
 
 describe('POST /api/market/buy-plane', () => {
   it('rejects a missing model, unknown fields and unknown models with 400', async () => {

app/api/market/buy-plane/route.ts

@@ -27,5 +27,5 @@ export async function POST(req: Request) {
   }
 
   const model = input.model;
-  return performAction((inst) => buyPlane(inst, model));
+  return performAction(req, (inst) => buyPlane(inst, model));
 }

app/api/market/sell-plane/route.test.ts

@@ -6,16 +6,20 @@ import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import * as schema from '@/lib/db/schema';
 import { getLocalPlayer } from '@/lib/db/localPlayer';
 import { getGameDb } from '@/lib/db/client';
+import { createSession } from '@/lib/auth';
 import { PLANE_TYPES, SELL_FRACTION } from '@/lib/game/catalog';
 import { POST } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
   // throwaway file (fresh module registry per test file → fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-sell-api-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'sell.db');
+  // v1.1.0 (ISS-107): action routes are session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -23,7 +27,14 @@ afterAll(async () => {
   await fs.rm(dir, { recursive: true, force: true });
 });
 
-const post = (body: unknown) => POST(new Request('http://localhost/api/market/sell-plane', { method: 'POST', body: JSON.stringify(body) }));
+const post = (body: unknown) =>
+  POST(
+    new Request('http://localhost/api/market/sell-plane', {
+      method: 'POST',
+      headers: { 'X-Flight-Session': sessionId },
+      body: JSON.stringify(body),
+    }),
+  );
 
 describe('POST /api/market/sell-plane', () => {
   it('rejects a missing planeId and unknown fields with 400', async () => {

app/api/market/sell-plane/route.ts

@@ -27,5 +27,5 @@ export async function POST(req: Request) {
   }
 
   const planeId = input.planeId;
-  return performAction((inst) => sellPlane(inst, planeId));
+  return performAction(req, (inst) => sellPlane(inst, planeId));
 }

app/api/packages/[id]/abandon/route.test.ts

@@ -6,15 +6,19 @@ import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import * as schema from '@/lib/db/schema';
 import { getLocalPlayer } from '@/lib/db/localPlayer';
 import { getGameDb } from '@/lib/db/client';
+import { createSession } from '@/lib/auth';
 import { POST } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
   // throwaway file (fresh module registry per test file → fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-abandon-api-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'abandon.db');
+  // v1.1.0 (ISS-107): action routes are session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -22,9 +26,11 @@ afterAll(async () => {
   await fs.rm(dir, { recursive: true, force: true });
 });
 
-const post = (id: string) => POST(new Request(`http://localhost/api/packages/${id}/abandon`, { method: 'POST' }), {
-  params: Promise.resolve({ id }),
-});
+const post = (id: string) =>
+  POST(
+    new Request(`http://localhost/api/packages/${id}/abandon`, { method: 'POST', headers: { 'X-Flight-Session': sessionId } }),
+    { params: Promise.resolve({ id }) },
+  );
 
 // Insert a LOADED package bound to the starter plane with a long deadline. Returns
 // the exact created/deadline times so tests can compute the penalty from the

app/api/packages/[id]/abandon/route.ts

@@ -7,7 +7,7 @@ import { abandonPackage, performAction } from '@/lib/game/actions';
 // id; 409 wrong status or the plane is in flight. On success returns the full
 // state snapshot.
 
-export async function POST(_req: Request, ctx: { params: Promise<{ id: string }> }) {
+export async function POST(req: Request, ctx: { params: Promise<{ id: string }> }) {
   const { id } = await ctx.params;
-  return performAction((inst) => abandonPackage(inst, id));
+  return performAction(req, (inst) => abandonPackage(inst, id));
 }

app/api/packages/[id]/load/route.test.ts

@@ -5,15 +5,19 @@ import { eq } from 'drizzle-orm';
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import * as schema from '@/lib/db/schema';
 import { getGameDb } from '@/lib/db/client';
+import { createSession } from '@/lib/auth';
 import { POST } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
   // throwaway file (fresh module registry per test file → fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-load-api-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'load.db');
+  // v1.1.0 (ISS-107): action routes are session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -22,9 +26,14 @@ afterAll(async () => {
 });
 
 const post = (id: string, body: unknown) =>
-  POST(new Request(`http://localhost/api/packages/${id}/load`, { method: 'POST', body: JSON.stringify(body) }), {
-    params: Promise.resolve({ id }),
-  });
+  POST(
+    new Request(`http://localhost/api/packages/${id}/load`, {
+      method: 'POST',
+      headers: { 'X-Flight-Session': sessionId },
+      body: JSON.stringify(body),
+    }),
+    { params: Promise.resolve({ id }) },
+  );
 
 describe('POST /api/packages/:id/load', () => {
   it('rejects a missing/non-string planeId and unknown fields with 400', async () => {

app/api/packages/[id]/load/route.ts

@@ -31,5 +31,5 @@ export async function POST(req: Request, ctx: { params: Promise<{ id: string }>
   }
 
   const planeId = input.planeId;
-  return performAction((inst) => loadPackage(inst, id, planeId));
+  return performAction(req, (inst) => loadPackage(inst, id, planeId));
 }

app/api/planes/[planeId]/fly/route.test.ts

@@ -5,15 +5,19 @@ import { eq } from 'drizzle-orm';
 import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import * as schema from '@/lib/db/schema';
 import { getGameDb } from '@/lib/db/client';
+import { createSession } from '@/lib/auth';
 import { POST } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
   // throwaway file (fresh module registry per test file → fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-fly-api-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'fly.db');
+  // v1.1.0 (ISS-107): action routes are session-guarded — mint a session for the seeded admin user.
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
 afterAll(async () => {
@@ -22,9 +26,14 @@ afterAll(async () => {
 });
 
 const post = (planeId: string, body: unknown) =>
-  POST(new Request(`http://localhost/api/planes/${planeId}/fly`, { method: 'POST', body: JSON.stringify(body) }), {
-    params: Promise.resolve({ planeId }),
-  });
+  POST(
+    new Request(`http://localhost/api/planes/${planeId}/fly`, {
+      method: 'POST',
+      headers: { 'X-Flight-Session': sessionId },
+      body: JSON.stringify(body),
+    }),
+    { params: Promise.resolve({ planeId }) },
+  );
 
 describe('POST /api/planes/:planeId/fly', () => {
   it('rejects a missing/non-string destIcao and unknown fields with 400', async () => {

app/api/planes/[planeId]/fly/route.ts

@@ -31,5 +31,5 @@ export async function POST(req: Request, ctx: { params: Promise<{ planeId: strin
   }
 
   const destIcao = input.destIcao;
-  return performAction((inst) => flyPlane(inst, planeId, destIcao));
+  return performAction(req, (inst) => flyPlane(inst, planeId, destIcao));
 }

app/api/planes/[planeId]/queue/cancel/route.ts

@@ -30,5 +30,5 @@ export async function POST(req: Request, ctx: { params: Promise<{ planeId: strin
   }
 
   const index = input.index as number;
-  return performAction((inst) => cancelQueuedLeg(inst, planeId, index));
+  return performAction(req, (inst) => cancelQueuedLeg(inst, planeId, index));
 }

app/api/planes/[planeId]/queue/route.ts

@@ -31,5 +31,5 @@ export async function POST(req: Request, ctx: { params: Promise<{ planeId: strin
   }
 
   const destIcao = input.destIcao;
-  return performAction((inst) => queueLeg(inst, planeId, destIcao));
+  return performAction(req, (inst) => queueLeg(inst, planeId, destIcao));
 }

app/api/planes/[planeId]/repair/route.ts

@@ -6,7 +6,7 @@ import { performAction, repairPlane } from '@/lib/game/actions';
 // repair is a free no-op (cost 0). 404 unknown id; 409 plane not grounded or insufficient funds.
 // On success returns the full state snapshot.
 
-export async function POST(_req: Request, ctx: { params: Promise<{ planeId: string }> }) {
+export async function POST(req: Request, ctx: { params: Promise<{ planeId: string }> }) {
   const { planeId } = await ctx.params;
-  return performAction((inst) => repairPlane(inst, planeId));
+  return performAction(req, (inst) => repairPlane(inst, planeId));
 }

app/api/register/route.test.ts

@@ -0,0 +1,70 @@
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import { getGameDb } from '@/lib/db/client';
+import { verifyPassword } from '@/lib/auth';
+import { STARTING_CASH, STARTING_REPUTATION } from '@/lib/game/seed';
+import { POST } from './route';
+
+// v1.1.0 (ISS-107) — register route tests. Same temp-DB pattern as the login route tests: the DB
+// singleton points at a throwaway file, and every created user is verified through verifyPassword().
+
+let dir: string;
+
+beforeAll(async () => {
+  dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-register-api-'));
+  process.env.FLIGHT_DB_PATH = path.join(dir, 'register.db');
+});
+
+afterAll(async () => {
+  delete process.env.FLIGHT_DB_PATH;
+  await fs.rm(dir, { recursive: true, force: true });
+});
+
+const post = (body: unknown) => POST(new Request('http://localhost/api/register', { method: 'POST', body: JSON.stringify(body) }));
+
+describe('POST /api/register', () => {
+  it('rejects malformed bodies and bad credentials with 400', async () => {
+    for (const body of [
+      {}, // missing both fields
+      { username: 'ab', password: 'longenough' }, // too short
+      { username: 'a'.repeat(21), password: 'longenough' }, // too long
+      { username: 'bad user!', password: 'longenough' }, // bad charset (space + !)
+      { username: 'validuser', password: 'short' }, // password < 8 chars
+      { username: 'validuser', password: 'longenough', bogus: 1 }, // unknown field
+    ]) {
+      const res = await post(body);
+      expect(res.status).toBe(400);
+      expect(((await res.json()) as { error: string }).error).toBeTruthy();
+    }
+  });
+
+  it('creates users + players rows sharing one id, with the starter economy, and mints a session', async () => {
+    const res = await post({ username: 'NewUser42', password: 'correct-horse-1' });
+    expect(res.status).toBe(200);
+    const body = (await res.json()) as { sessionId: string; user: { username: string; admin: boolean } };
+    expect(body.user).toEqual({ username: 'newuser42', admin: false }); // input lowercased
+    expect(body.sessionId).toMatch(/^[0-9a-f-]{36}$/);
+
+    const inst = await getGameDb();
+    const userRow = inst.raw.exec('SELECT id, password_hash FROM users WHERE username = ?', ['newuser42'])[0].values[0];
+    const playerRow = inst.raw.exec('SELECT id, provider, cash, reputation FROM players WHERE username = ?', ['newuser42'])[0].values[0];
+    expect(String(playerRow[0])).toBe(String(userRow[0])); // one UUID for both rows
+    expect(verifyPassword('correct-horse-1', String(userRow[1]))).toBe(true);
+    expect(String(playerRow[1])).toBe('local');
+    expect(Number(playerRow[2])).toBe(STARTING_CASH);
+    expect(Number(playerRow[3])).toBe(STARTING_REPUTATION);
+
+    // The minted session resolves to the new user.
+    const sess = inst.raw.exec('SELECT user_id FROM sessions WHERE id = ?', [body.sessionId])[0].values[0];
+    expect(String(sess[0])).toBe(String(userRow[0]));
+  });
+
+  it('returns 409 when the username is taken (case-insensitively)', async () => {
+    await post({ username: 'taken-user', password: 'correct-horse-1' });
+    const res = await post({ username: 'Taken-User', password: 'different-pass-2' });
+    expect(res.status).toBe(409);
+    expect(((await res.json()) as { error: string }).error).toMatch(/already taken/i);
+  });
+});

app/api/register/route.ts

@@ -0,0 +1,71 @@
+import { randomUUID } from 'node:crypto';
+import * as schema from '@/lib/db/schema';
+import { getGameDb, persist } from '@/lib/db/client';
+import { createSession, hashPassword } from '@/lib/auth';
+import { STARTING_CASH, STARTING_REPUTATION } from '@/lib/game/seed';
+
+// v1.1.0 (ISS-107) — POST /api/register
+//   body { username: string, password: string } (both required; unknown fields 400).
+//   Username: 3–20 chars of [a-z0-9_-], case-insensitive input stored lowercase → else 400.
+//   Password: min 8 chars → else 400. Creates the users row (scrypt via hashPassword — same
+//   digest shape verifyPassword() checks) AND a players row with the starter economy (the exact
+//   values seedEmpty() gives a fresh world). 409 when the username is taken. On success mints a
+//   session immediately and returns { sessionId, user } like /api/login — no second round-trip.
+
+const USERNAME_RE = /^[a-z0-9_-]{3,20}$/;
+
+export async function POST(req: Request) {
+  let body: unknown;
+  try {
+    const text = await req.text();
+    body = text ? JSON.parse(text) : undefined;
+  } catch {
+    return Response.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+  if (typeof body !== 'object' || body === null || Array.isArray(body)) {
+    return Response.json({ error: 'body must be a JSON object' }, { status: 400 });
+  }
+  const input = body as Record<string, unknown>;
+  for (const key of Object.keys(input)) {
+    if (key !== 'username' && key !== 'password') {
+      return Response.json({ error: `unknown field "${key}"` }, { status: 400 });
+    }
+  }
+  const username = typeof input.username === 'string' ? input.username.toLowerCase() : '';
+  if (!USERNAME_RE.test(username)) {
+    return Response.json(
+      { error: 'username must be 3–20 characters of a-z, 0-9, _ or -' },
+      { status: 400 },
+    );
+  }
+  const password = input.password;
+  if (typeof password !== 'string' || password.length < 8) {
+    return Response.json({ error: 'password must be at least 8 characters' }, { status: 400 });
+  }
+
+  const inst = await getGameDb();
+  const taken = inst.raw.exec('SELECT 1 FROM users WHERE username = ?', [username]);
+  if (taken[0]?.values?.length) {
+    return Response.json({ error: 'username is already taken' }, { status: 409 });
+  }
+
+  // One UUID for both rows — the account and its player share an id; requireAuth still joins on username.
+  const id = randomUUID();
+  inst.raw.run('INSERT INTO users (id, username, password_hash, admin, created_at) VALUES (?, ?, ?, 0, ?)', [
+    id,
+    username,
+    hashPassword(password),
+    Date.now(),
+  ]);
+  await inst.db.insert(schema.players).values({
+    id,
+    provider: 'local',
+    username,
+    cash: STARTING_CASH,
+    reputation: STARTING_REPUTATION,
+  });
+  await persist(inst);
+
+  const sessionId = await createSession(inst, id);
+  return Response.json({ sessionId, user: { username, admin: false } });
+}

app/api/state/route.test.ts

@@ -5,9 +5,12 @@ import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { loadAirportsGeoJson } from '@/lib/airports';
 import { haversineKm } from '@/lib/geo';
 import { FUEL_PRICE_PER_L, PLANE_TYPES, SELL_FRACTION } from '@/lib/game/catalog';
+import { createSession } from '@/lib/auth';
+import { getGameDb } from '@/lib/db/client';
 import { GET } from './route';
 
 let dir: string;
+let sessionId: string;
 
 beforeAll(async () => {
   // Point the app's DB singleton at a throwaway file so this test never
@@ -15,8 +18,14 @@ beforeAll(async () => {
   // vitest gives each test file its own module registry (fresh singleton).
   dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-state-'));
   process.env.FLIGHT_DB_PATH = path.join(dir, 'state.db');
+  // v1.1.0 (ISS-107): /api/state is session-guarded — mint a session for the seeded admin user
+  // (no password needed: createSession only inserts into sessions; the guard joins players on
+  // username → the 'local' row).
+  sessionId = await createSession(await getGameDb(), 'admin-kamilkrzywda');
 });
 
+const req = () => new Request('http://localhost/api/state', { headers: { 'X-Flight-Session': sessionId } });
+
 afterAll(async () => {
   delete process.env.FLIGHT_DB_PATH;
   await fs.rm(dir, { recursive: true, force: true });
@@ -24,7 +33,7 @@ afterAll(async () => {
 
 describe('GET /api/state', () => {
   it('returns 200 with the full snapshot shape', async () => {
-    const res = await GET();
+    const res = await GET(req());
     expect(res.status).toBe(200);
     expect(res.headers.get('content-type')).toContain('application/json');
 
@@ -75,13 +84,13 @@ describe('GET /api/state', () => {
   });
 
   it('is stable across repeated calls (same seeded DB)', async () => {
-    const a = ((await GET()).json()) as Promise<{ account: { cash: number } }>;
-    const b = ((await GET()).json()) as Promise<{ account: { cash: number } }>;
+    const a = ((await GET(req())).json()) as Promise<{ account: { cash: number } }>;
+    const b = ((await GET(req())).json()) as Promise<{ account: { cash: number } }>;
     expect((await b).account.cash).toBe((await a).account.cash);
   });
 
   it('exposes the catalog + economy constants matching lib/game/catalog.ts (v0.10.0)', async () => {
-    const body = ((await GET()).json()) as Promise<{
+    const body = ((await GET(req())).json()) as Promise<{
       catalog: Array<Record<string, unknown>>;
       fuelPricePerL: number;
       sellFraction: number;

app/api/state/route.ts

@@ -1,7 +1,12 @@
+import { requireAuth } from '@/lib/auth';
 import { tickNow } from '@/lib/sim/engine';
 import { getStateSnapshot } from '@/lib/game/state';
 
-export async function GET() {
+// v1.1.0 (ISS-107): guarded — 401 without a live X-Flight-Session. The snapshot shape is
+// unchanged; per-player snapshots are a later step.
+export async function GET(req: Request) {
+  const auth = await requireAuth(req);
+  if (!auth.ok) return auth.response;
   try {
     // Tick-on-read (v0.7.0): advance the sim clock before snapshotting so every
     // read reflects current game time (expiry/finalize/spawn run inside the tick).

app/api/test/mint-player-session/route.test.ts

@@ -0,0 +1,75 @@
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest';
+import { getGameDb } from '@/lib/db/client';
+import { POST } from './route';
+
+// v1.1.0 (ISS-107) — the e2e session-mint hook. CI runs unit tests with FLIGHT_TEST_HOOKS=1 set
+// (docker-compose.ci.yml), so the gate test stubs the env explicitly instead of relying on absence.
+
+let dir: string;
+
+beforeAll(async () => {
+  dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-mint-'));
+  process.env.FLIGHT_DB_PATH = path.join(dir, 'mint.db');
+});
+
+afterAll(async () => {
+  vi.unstubAllEnvs();
+  delete process.env.FLIGHT_DB_PATH;
+  await fs.rm(dir, { recursive: true, force: true });
+});
+
+const post = (body?: unknown) =>
+  POST(
+    new Request('http://localhost/api/test/mint-player-session', {
+      method: 'POST',
+      body: body === undefined ? undefined : JSON.stringify(body),
+    }),
+  );
+
+describe('POST /api/test/mint-player-session', () => {
+  it('404s when FLIGHT_TEST_HOOKS is not "1" (like its /api/test/* siblings)', async () => {
+    vi.stubEnv('FLIGHT_TEST_HOOKS', '');
+    const res = await post();
+    expect(res.status).toBe(404);
+  });
+
+  it('creates the default test account + player row and mints a session when enabled', async () => {
+    vi.stubEnv('FLIGHT_TEST_HOOKS', '1');
+    const res = await post(); // no body → DEFAULT_USERNAME
+    expect(res.status).toBe(200);
+    const body = (await res.json()) as { sessionId: string };
+    expect(body.sessionId).toMatch(/^[0-9a-f-]{36}$/);
+
+    const inst = await getGameDb();
+    const userRow = inst.raw.exec("SELECT id FROM users WHERE username = 'e2e-tester'")[0].values[0];
+    expect(userRow.length).toBe(1);
+    const playerRow = inst.raw.exec("SELECT id, cash FROM players WHERE username = 'e2e-tester'")[0].values[0];
+    expect(String(playerRow[0])).toBe(String(userRow[0])); // one UUID for both rows
+
+    // The minted session resolves to the new user.
+    const sess = inst.raw.exec('SELECT user_id FROM sessions WHERE id = ?', [body.sessionId])[0].values[0];
+    expect(String(sess[0])).toBe(String(userRow[0]));
+  });
+
+  it('is idempotent — re-minting an existing username mints another session, no duplicate rows', async () => {
+    vi.stubEnv('FLIGHT_TEST_HOOKS', '1');
+    const count = async () => Number((await getGameDb()).raw.exec("SELECT COUNT(*) FROM users WHERE username = 'e2e-tester'")[0].values[0][0]);
+    expect(await count()).toBe(1);
+
+    const res = await post();
+    expect(res.status).toBe(200);
+    expect(await count()).toBe(1); // still one account…
+  });
+
+  it('rejects bad usernames and unknown fields with 400', async () => {
+    vi.stubEnv('FLIGHT_TEST_HOOKS', '1');
+    for (const body of [{ username: 'x' }, { username: 'BAD USER!' }, { bogus: 1 }]) {
+      const res = await post(body);
+      expect(res.status).toBe(400);
+      expect(((await res.json()) as { error: string }).error).toBeTruthy();
+    }
+  });
+});

app/api/test/mint-player-session/route.ts

@@ -0,0 +1,77 @@
+import { randomUUID } from 'node:crypto';
+import * as schema from '@/lib/db/schema';
+import { getGameDb, persist } from '@/lib/db/client';
+import { createSession, hashPassword } from '@/lib/auth';
+import { STARTING_CASH, STARTING_REPUTATION } from '@/lib/game/seed';
+
+// TEST-ONLY hook (v1.1.0, ISS-107) — mints a session for a test player so the e2e suite can hit
+// the guarded game routes WITHOUT any real credentials in test code (same reason as its sibling
+// /api/test/admin-session). Creates the users + players rows if missing — idempotent across
+// container restarts, since the CI DB volume persists. Disabled unless FLIGHT_TEST_HOOKS=1; every
+// other deployment 404s here, like its /api/test/* siblings.
+//
+// POST /api/test/mint-player-session
+//   body { username?: string } — defaults to 'e2e-tester'; must match the register rules when given.
+//   Returns { sessionId }.
+
+const DEFAULT_USERNAME = 'e2e-tester';
+// Test-only credential for the minted users row — e2e never logs in with it (sessions are minted
+// server-side); a fixed value keeps the row debuggable from the admin panel.
+const TEST_PASSWORD = 'e2e-mint-password-42';
+
+export async function POST(req: Request) {
+  if (process.env.FLIGHT_TEST_HOOKS !== '1') {
+    return Response.json({ error: 'test hooks disabled' }, { status: 404 });
+  }
+
+  let body: unknown = {};
+  try {
+    const text = await req.text();
+    body = text ? JSON.parse(text) : {};
+  } catch {
+    return Response.json({ error: 'invalid JSON body' }, { status: 400 });
+  }
+  if (typeof body !== 'object' || body === null || Array.isArray(body)) {
+    return Response.json({ error: 'body must be a JSON object' }, { status: 400 });
+  }
+  const input = body as Record<string, unknown>;
+  for (const key of Object.keys(input)) {
+    if (key !== 'username') {
+      return Response.json({ error: `unknown field "${key}"` }, { status: 400 });
+    }
+  }
+  let username = DEFAULT_USERNAME;
+  if (input.username !== undefined) {
+    if (typeof input.username !== 'string' || !/^[a-z0-9_-]{3,20}$/.test(input.username)) {
+      return Response.json(
+        { error: 'username must be 3–20 characters of a-z, 0-9, _ or -' },
+        { status: 400 },
+      );
+    }
+    username = input.username;
+  }
+
+  const inst = await getGameDb();
+  let res = inst.raw.exec('SELECT id FROM users WHERE username = ?', [username]);
+  let userId = res[0]?.values?.[0]?.[0];
+  if (typeof userId !== 'string') {
+    // New test account — one UUID for both rows, starter economy like a fresh world.
+    const id = randomUUID();
+    inst.raw.run('INSERT INTO users (id, username, password_hash, admin, created_at) VALUES (?, ?, ?, 0, ?)', [
+      id,
+      username,
+      hashPassword(TEST_PASSWORD),
+      Date.now(),
+    ]);
+    await inst.db.insert(schema.players).values({
+      id,
+      provider: 'local',
+      username,
+      cash: STARTING_CASH,
+      reputation: STARTING_REPUTATION,
+    });
+    userId = id;
+  }
+  const sessionId = await createSession(inst, userId); // persists the rows + session together
+  return Response.json({ sessionId });
+}

app/globals.css

@@ -727,3 +727,74 @@ body {
 .admin-row-actions {
   white-space: nowrap;
 }
+
+/* v1.1.0 (ISS-107) — full-screen sign-in / create-account screen, same dark slate theme as the panes. */
+.sign-in {
+  position: fixed;
+  inset: 0;
+  z-index: 50;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 14px;
+  background: rgba(15, 23, 42, 0.97);
+  color: #f8fafc;
+}
+
+.sign-in h1 {
+  margin: 0;
+  font-size: 22px;
+  letter-spacing: 0.06em;
+}
+
+.sign-in form {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  width: 300px;
+  padding: 14px;
+  border: 1px solid rgba(148, 163, 184, 0.3);
+  border-radius: 6px;
+  background: rgba(30, 41, 59, 0.6);
+}
+
+.sign-in label {
+  font-size: 12px;
+  color: #cbd5e1;
+}
+
+.sign-in input {
+  font-size: 13px;
+  padding: 5px 8px;
+  border-radius: 4px;
+  border: 1px solid rgba(148, 163, 184, 0.4);
+  background: rgba(15, 23, 42, 0.9);
+  color: #f8fafc;
+}
+
+.sign-in .pane-btn {
+  margin-top: 6px;
+  padding: 5px 10px;
+}
+
+.sign-in-divider {
+  margin: 0;
+  font-size: 12px;
+  color: #94a3b8;
+}
+
+.sign-in-error {
+  margin: 0;
+  font-size: 13px;
+  color: #fca5a5;
+}
+
+.sign-in-loading {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  margin: 0;
+  color: #cbd5e1;
+}

app/page.tsx

@@ -4,8 +4,10 @@ import dynamic from 'next/dynamic';
 import { useEffect, useRef, useState } from 'react';
 import LeftPane from '@/components/LeftPane';
 import RightPane from '@/components/RightPane';
+import SignInScreen from '@/components/SignInScreen';
 import ToastStack from '@/components/Toasts';
 import type { HoverTarget } from '@/components/hoverTypes';
+import { clearStoredSession, sessionHeaders, storedSession } from '@/lib/authClient';
 import { useGameState } from '@/lib/useGameState';
 import { useToasts } from '@/lib/useToasts';
 import { diffSnapshots } from '@/lib/deriveEvents';
@@ -13,6 +15,50 @@ import { diffSnapshots } from '@/lib/deriveEvents';
 const Map = dynamic(() => import('@/components/Map'), { ssr: false });
 
 export default function Home() {
+  // v1.1.0 (ISS-107): auth gate — null while checking the stored session on mount, then either
+  // the sign-in screen or the game shell. The shell only mounts once authenticated, so its state
+  // feed never polls an unauthenticated /api/state.
+  const [authed, setAuthed] = useState<boolean | null>(null);
+
+  useEffect(() => {
+    const sid = storedSession();
+    if (!sid) {
+      setAuthed(false);
+      return;
+    }
+    let cancelled = false;
+    fetch('/api/me', { headers: sessionHeaders(sid), cache: 'no-store' })
+      .then((res) => {
+        if (cancelled) return;
+        if (!res.ok) clearStoredSession(); // stale/expired id — drop it and show sign-in
+        setAuthed(res.ok);
+      })
+      .catch(() => {
+        if (!cancelled) setAuthed(false); // network error → let the user try to sign in
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
+  if (authed === null) {
+    return (
+      <div className="app-shell">
+        <p data-testid="auth-checking" className="sign-in-loading">
+          Loading…
+        </p>
+      </div>
+    );
+  }
+  if (!authed) {
+    return <SignInScreen onAuthed={() => setAuthed(true)} />;
+  }
+
+  // The admin panel's Log out cleared the session — drop back to sign-in (ISS-107).
+  return <AppShell onLogout={() => setAuthed(false)} />;
+}
+
+function AppShell({ onLogout }: { onLogout: () => void }) {
   // Single polling source for the whole shell (v0.9.0): one /api/state loop, snapshot passed
   // down as props so later panes can share it without extra poll loops. applySnapshot (v0.10.0)
   // lets a pane push an action endpoint's full response snapshot in immediately.
@@ -49,7 +95,7 @@ export default function Home() {
       {/* v0.11.0 — the same polled snapshot drives the map's plane markers + route lines;
           ISS-010 (v0.18.0) — applySnapshot lets the airport popup's Relocate row push its
           action response into the shared state, exactly like RightPane does */}
-      <Map state={state} hovered={hovered} applySnapshot={applySnapshot} />
+      <Map state={state} hovered={hovered} applySnapshot={applySnapshot} onLogout={onLogout} />
       <RightPane state={state} loading={loading} applySnapshot={applySnapshot} onHover={setHovered} onError={onError} />
       <ToastStack toasts={toasts} onDismiss={dismiss} />
     </div>