Add policy, intake, and payment history to the admin student detail view

The student-administration spec deferred three detail-view sections until
Payments landed. Adds them now: policy-acceptance history (title, version,
context, date), intake answers (label, answer, context), and — gated on
manage_billing — payment history with HST breakdown and receipt numbers.

New Auth\StudentHistory builds the display rows from per-student queries
added to AcceptanceRepository, AnswerRepository, and PaymentRepository;
the Payment model now carries created_at so unpaid rows still have a date.

Closes #69

Co-Authored-By: Claude Fable 5 <[email protected]>

tests/Unit/Auth/StudentHistoryTest.php

@@ -0,0 +1,180 @@
+<?php
+declare(strict_types=1);
+
+namespace Unsupervised\Schedular\Tests\Unit\Auth;
+
+use Mockery;
+use Unsupervised\Schedular\Auth\StudentHistory;
+use Unsupervised\Schedular\Payment\Payment;
+use Unsupervised\Schedular\Payment\PaymentRepository;
+use Unsupervised\Schedular\Policy\AcceptanceRepository;
+use Unsupervised\Schedular\Policy\Policy;
+use Unsupervised\Schedular\Policy\PolicyAcceptance;
+use Unsupervised\Schedular\Policy\PolicyRepository;
+use Unsupervised\Schedular\Policy\PolicyVersion;
+use Unsupervised\Schedular\Policy\PolicyVersionRepository;
+use Unsupervised\Schedular\Registration\Answer;
+use Unsupervised\Schedular\Registration\AnswerRepository;
+use Unsupervised\Schedular\Registration\Question;
+use Unsupervised\Schedular\Registration\QuestionRepository;
+use Unsupervised\Schedular\Tests\Unit\TestCase;
+
+class StudentHistoryTest extends TestCase
+{
+    private AcceptanceRepository&Mockery\MockInterface $acceptances;
+    private PolicyRepository&Mockery\MockInterface $policies;
+    private PolicyVersionRepository&Mockery\MockInterface $policyVersions;
+    private AnswerRepository&Mockery\MockInterface $answers;
+    private QuestionRepository&Mockery\MockInterface $questions;
+    private PaymentRepository&Mockery\MockInterface $payments;
+    private StudentHistory $history;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->acceptances    = Mockery::mock(AcceptanceRepository::class);
+        $this->policies       = Mockery::mock(PolicyRepository::class);
+        $this->policyVersions = Mockery::mock(PolicyVersionRepository::class);
+        $this->answers        = Mockery::mock(AnswerRepository::class);
+        $this->questions      = Mockery::mock(QuestionRepository::class);
+        $this->payments       = Mockery::mock(PaymentRepository::class);
+
+        $this->history = new StudentHistory(
+            $this->acceptances,
+            $this->policies,
+            $this->policyVersions,
+            $this->answers,
+            $this->questions,
+            $this->payments
+        );
+    }
+
+    public function testPolicyAcceptancesResolvePolicyTitleAndVersion(): void
+    {
+        $this->acceptances->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new PolicyAcceptance(9, 5, PolicyAcceptance::REG_ACCOUNT, 5, null, '2026-06-02 09:00:00', 1),
+        ]);
+        $this->policyVersions->shouldReceive('findById')->with(9)
+            ->andReturn(new PolicyVersion(2, 3, null, PolicyVersion::STATUS_PUBLISHED, id: 9));
+        $this->policies->shouldReceive('findById')->with(2)
+            ->andReturn(new Policy('Waiver', 'waiver', 9, Policy::SCOPE_SIGNUP, 2));
+
+        $rows = $this->history->policyAcceptances(5);
+
+        self::assertSame(
+            [
+                [
+                    'policy'      => 'Waiver',
+                    'version'     => 'v3',
+                    'context'     => 'Account signup',
+                    'accepted_at' => '2026-06-02 09:00:00',
+                ],
+            ],
+            $rows
+        );
+    }
+
+    public function testPolicyAcceptancesFallBackWhenVersionIsGone(): void
+    {
+        $this->acceptances->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new PolicyAcceptance(9, 5, PolicyAcceptance::REG_LESSON, 12),
+        ]);
+        $this->policyVersions->shouldReceive('findById')->with(9)->andReturn(null);
+
+        $rows = $this->history->policyAcceptances(5);
+
+        self::assertSame('#9', $rows[0]['policy']);
+        self::assertSame('—', $rows[0]['version']);
+        self::assertSame('Lesson #12', $rows[0]['context']);
+        self::assertSame('', $rows[0]['accepted_at']);
+    }
+
+    public function testIntakeAnswersResolveQuestionLabels(): void
+    {
+        $this->answers->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new Answer(4, Answer::REG_ENROLLMENT, 3, 5, 'Beginner', 1),
+        ]);
+        $this->questions->shouldReceive('findById')->with(4)
+            ->andReturn(new Question(1, 'Experience level', id: 4));
+
+        $rows = $this->history->intakeAnswers(5);
+
+        self::assertSame(
+            [
+                [
+                    'question' => 'Experience level',
+                    'answer'   => 'Beginner',
+                    'context'  => 'Enrolment #3',
+                ],
+            ],
+            $rows
+        );
+    }
+
+    public function testIntakeAnswersFallBackWhenQuestionIsGone(): void
+    {
+        $this->answers->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new Answer(4, Answer::REG_LESSON, 12, 5, null, 1),
+        ]);
+        $this->questions->shouldReceive('findById')->with(4)->andReturn(null);
+
+        $rows = $this->history->intakeAnswers(5);
+
+        self::assertSame('#4', $rows[0]['question']);
+        self::assertSame('—', $rows[0]['answer']);
+    }
+
+    public function testPaymentsBuildDisplayRows(): void
+    {
+        $this->payments->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new Payment(
+                5,
+                3,
+                Payment::REG_LESSON,
+                12,
+                100.00,
+                'CAD',
+                Payment::METHOD_CARD,
+                Payment::STATUS_PAID,
+                taxRate: 13.0,
+                taxAmount: 13.00,
+                receiptNumber: 'USC-7',
+                createdAt: '2026-06-08 09:00:00',
+                id: 50
+            ),
+        ]);
+
+        $rows = $this->history->payments(5);
+
+        self::assertSame(
+            [
+                [
+                    'created_at' => '2026-06-08 09:00:00',
+                    'context'    => 'Lesson #12',
+                    'method'     => Payment::METHOD_CARD,
+                    'status'     => Payment::STATUS_PAID,
+                    'amount'     => 100.00,
+                    'tax_amount' => 13.00,
+                    'total'      => 113.00,
+                    'currency'   => 'CAD',
+                    'receipt'    => 'USC-7',
+                ],
+            ],
+            $rows
+        );
+    }
+
+    public function testPaymentsFallBackWhenUnpaidAndUndated(): void
+    {
+        $this->payments->shouldReceive('findByStudent')->once()->with(5)->andReturn([
+            new Payment(5, 3, Payment::REG_ENROLLMENT, 3, 40.00, id: 51),
+        ]);
+
+        $rows = $this->history->payments(5);
+
+        self::assertSame('', $rows[0]['created_at']);
+        self::assertSame('Enrolment #3', $rows[0]['context']);
+        self::assertSame('—', $rows[0]['receipt']);
+    }
+}

tests/Unit/Payment/PaymentRepositoryTest.php

@@ -158,6 +158,22 @@ class PaymentRepositoryTest extends TestCase
         self::assertCount(1, $this->repo->findPending());
     }
 
+    public function testFindByStudentPreparesQueryAndMaps(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/student_id = %d ORDER BY created_at DESC, id DESC/'), 'wp_us_payments', 5)
+            ->andReturn('SELECT ...');
+
+        $this->db->shouldReceive('get_results')->andReturn([$this->row()]);
+
+        $payments = $this->repo->findByStudent(5);
+
+        self::assertCount(1, $payments);
+        self::assertSame(5, $payments[0]->studentId);
+        self::assertSame('2026-06-08 09:00:00', $payments[0]->createdAt);
+    }
+
     private function row(): object
     {
         return (object) [
@@ -177,6 +193,7 @@ class PaymentRepositoryTest extends TestCase
             'receipt_number'           => null,
             'receipt_sent_at'          => null,
             'paid_at'                  => null,
+            'created_at'               => '2026-06-08 09:00:00',
         ];
     }
 }

tests/Unit/Payment/PaymentTest.php

@@ -46,6 +46,7 @@ class PaymentTest extends TestCase
             'receipt_number'           => 'USC-7',
             'receipt_sent_at'          => null,
             'paid_at'                  => '2026-06-08 10:00:00',
+            'created_at'               => '2026-06-08 09:00:00',
         ]);
 
         self::assertSame(7, $payment->id);
@@ -55,6 +56,7 @@ class PaymentTest extends TestCase
         self::assertSame(Payment::METHOD_COMP, $payment->method);
         self::assertTrue($payment->isPaid());
         self::assertSame('USC-7', $payment->receiptNumber);
+        self::assertSame('2026-06-08 09:00:00', $payment->createdAt);
     }
 
     public function testTotalAddsTaxToAmount(): void

tests/Unit/Policy/AcceptanceRepositoryTest.php

@@ -90,4 +90,29 @@ class AcceptanceRepositoryTest extends TestCase
         self::assertCount(1, $rows);
         self::assertInstanceOf(PolicyAcceptance::class, $rows[0]);
     }
+
+    public function testFindByStudentMapsRowsNewestFirst(): void
+    {
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(Mockery::pattern('/student_id = %d ORDER BY accepted_at DESC, id DESC/'), 'wp_us_policy_acceptances', 5)
+            ->andReturn('SELECT ...');
+
+        $this->db->shouldReceive('get_results')->andReturn([
+            (object) [
+                'id'                => '2',
+                'policy_version_id' => '9',
+                'student_id'        => '5',
+                'registration_type' => PolicyAcceptance::REG_ACCOUNT,
+                'registration_id'   => '5',
+                'accepted_at'       => '2026-06-03 09:00:00',
+                'ip_address'        => null,
+            ],
+        ]);
+
+        $rows = $this->repo->findByStudent(5);
+
+        self::assertCount(1, $rows);
+        self::assertSame(5, $rows[0]->studentId);
+    }
 }

tests/Unit/Registration/AnswerRepositoryTest.php

@@ -98,4 +98,32 @@ class AnswerRepositoryTest extends TestCase
         self::assertInstanceOf(Answer::class, $answers[0]);
         self::assertSame(3, $answers[0]->questionId);
     }
+
+    public function testFindByStudentPreparesQueryAndMaps(): void
+    {
+        $row = (object) [
+            'id'                => '1',
+            'question_id'       => '3',
+            'registration_type' => Answer::REG_LESSON,
+            'registration_id'   => '12',
+            'student_id'        => '5',
+            'answer_value'      => 'Beginner',
+        ];
+
+        $this->db->shouldReceive('prepare')
+            ->once()
+            ->with(
+                Mockery::pattern('/student_id = %d ORDER BY id DESC/'),
+                'wp_us_question_answers',
+                5
+            )
+            ->andReturn('SELECT ...');
+
+        $this->db->shouldReceive('get_results')->andReturn([$row]);
+
+        $answers = $this->repo->findByStudent(5);
+
+        self::assertCount(1, $answers);
+        self::assertSame(5, $answers[0]->studentId);
+    }
 }