Gate password sign-in on email verification

Unverified password identities were able to open sessions after
signing out. Reject sign-in with EMAIL_NOT_VERIFIED and add a
resend-confirmation flow so users can complete verification.

Signed-off-by: Émile Ré <emile@probo.com>

e2e/console/email_verification_test.go

@@ -0,0 +1,111 @@
+// Copyright (c) 2026 Probo Inc <hello@probo.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+package console_test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.probo.inc/probo/e2e/internal/testutil"
+)
+
+func TestEmailVerification_PasswordSignInRequiresVerifiedEmail(t *testing.T) {
+	t.Parallel()
+
+	client := testutil.NewUnauthenticatedClient(t)
+
+	uniqueID := fmt.Sprintf("%d", time.Now().UnixNano())
+	email := fmt.Sprintf("unverified-%s@e2e.probo.test", uniqueID)
+	password := "TestPassword123!"
+	fullName := fmt.Sprintf("Unverified User %s", uniqueID)
+
+	const signUpMutation = `
+		mutation($input: SignUpInput!) {
+			signUp(input: $input) {
+				identity { id }
+			}
+		}
+	`
+
+	var signUpResult struct {
+		SignUp struct {
+			Identity struct {
+				ID string `json:"id"`
+			} `json:"identity"`
+		} `json:"signUp"`
+	}
+
+	err := client.ExecuteConnect(signUpMutation, map[string]any{
+		"input": map[string]any{
+			"email":    email,
+			"password": password,
+			"fullName": fullName,
+		},
+	}, &signUpResult)
+	require.NoError(t, err, "signUp should succeed for unverified identity")
+	require.NotEmpty(t, signUpResult.SignUp.Identity.ID)
+
+	client.SignOut()
+
+	err = client.SignIn(email, password)
+	testutil.RequireErrorCode(t, err, "EMAIL_NOT_VERIFIED")
+
+	client.ResendVerificationEmail(email)
+
+	token := client.GetEmailConfirmationToken(email)
+	require.NotEmpty(t, token)
+
+	const verifyMutation = `
+		mutation($input: VerifyEmailInput!) {
+			verifyEmail(input: $input) {
+				success
+			}
+		}
+	`
+
+	var verifyResult struct {
+		VerifyEmail struct {
+			Success bool `json:"success"`
+		} `json:"verifyEmail"`
+	}
+
+	err = client.ExecuteConnect(verifyMutation, map[string]any{
+		"input": map[string]any{
+			"token": token,
+		},
+	}, &verifyResult)
+	require.NoError(t, err, "verifyEmail should succeed")
+	assert.True(t, verifyResult.VerifyEmail.Success)
+
+	err = client.SignIn(email, password)
+	require.NoError(t, err, "signIn should succeed after email verification")
+}
+
+func TestEmailVerification_ResendIsEnumerationSafe(t *testing.T) {
+	t.Parallel()
+
+	client := testutil.NewUnauthenticatedClient(t)
+
+	client.ResendVerificationEmail(fmt.Sprintf("missing-%d@e2e.probo.test", time.Now().UnixNano()))
+}