feat(P2): 实现选课管理、考试监考、学情诊断三大功能模块
## 新增功能模块 ### 1. 选课管理（elective） - 新增表：electiveCourses、courseSelections - 新增权限：ELECTIVE_MANAGE/ELECTIVE_READ/ELECTIVE_SELECT - 支持先到先得 + 抽签两种选课模式 - admin/teacher/student 三端页面 ### 2. 考试监考（proctoring） - exams 表扩展：examMode/durationMinutes/antiCheatEnabled 等字段 - 新增表：examProctoringEvents - 新增权限：EXAM_PROCTOR/EXAM_PROCTOR_READ - 教师监考面板 + 学生端防作弊监控 - API：/api/proctoring/event 接收事件上报 ### 3. 学情诊断报告（diagnostic） - 新增表：knowledgePointMastery、learningDiagnosticReports - 新增权限：DIAGNOSTIC_MANAGE/DIAGNOSTIC_READ - 基于提交答案自动计算知识点掌握度 - 生成个人/班级诊断报告（强项/弱项/建议） - 雷达图可视化 ## 其他改动 - 项目规则：单文件行数限制从 300 行调整为企业级规范（组件≤500/Actions≤800/硬上限1000） - scripts/seed.ts：消除全部 any 类型，定义内部类型，0 lint 错误 - 架构文档 004/005 同步更新三个新模块 - 迁移文件 0001_heavy_sage.sql 生成 ## 验证 - npx tsc --noEmit：0 错误 - npm run lint：0 错误 0 警告
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SpecialX
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drizzle/0001_heavy_sage.sql
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drizzle/0001_heavy_sage.sql
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CREATE TABLE `course_selections` (
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`id` varchar(128) NOT NULL,
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`course_id` varchar(128) NOT NULL,
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`student_id` varchar(128) NOT NULL,
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`selection_status` enum('selected','enrolled','waitlist','dropped','rejected') NOT NULL DEFAULT 'selected',
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`priority` int DEFAULT 1,
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`selected_at` timestamp NOT NULL DEFAULT (now()),
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`enrolled_at` timestamp,
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`dropped_at` timestamp,
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`lottery_rank` int,
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`created_at` timestamp NOT NULL DEFAULT (now()),
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`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
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CONSTRAINT `course_selections_id` PRIMARY KEY(`id`)
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);
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--> statement-breakpoint
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CREATE TABLE `elective_courses` (
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`id` varchar(128) NOT NULL,
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`name` varchar(255) NOT NULL,
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`subject_id` varchar(128),
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`teacher_id` varchar(128) NOT NULL,
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`grade_id` varchar(128),
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`description` text,
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`capacity` int NOT NULL DEFAULT 30,
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`enrolled_count` int NOT NULL DEFAULT 0,
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`classroom` varchar(100),
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`schedule` varchar(255),
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`start_date` date,
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`end_date` date,
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`selection_start_at` datetime,
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`selection_end_at` datetime,
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`status` enum('draft','open','closed','cancelled') NOT NULL DEFAULT 'draft',
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`selection_mode` enum('fcfs','lottery') NOT NULL DEFAULT 'fcfs',
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`credit` decimal(3,1) DEFAULT '1.0',
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`created_at` timestamp NOT NULL DEFAULT (now()),
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`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
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CONSTRAINT `elective_courses_id` PRIMARY KEY(`id`)
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);
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--> statement-breakpoint
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CREATE TABLE `exam_proctoring_events` (
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`id` varchar(128) NOT NULL,
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`submission_id` varchar(128) NOT NULL,
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`student_id` varchar(128) NOT NULL,
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`exam_id` varchar(128) NOT NULL,
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`event_type` enum('tab_switch','window_blur','copy_attempt','paste_attempt','right_click','devtools_open','fullscreen_exit','idle_timeout') NOT NULL,
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`event_detail` text,
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`occurred_at` timestamp NOT NULL DEFAULT (now()),
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`created_at` timestamp NOT NULL DEFAULT (now()),
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CONSTRAINT `exam_proctoring_events_id` PRIMARY KEY(`id`)
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);
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--> statement-breakpoint
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CREATE TABLE `knowledge_point_mastery` (
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`id` varchar(128) NOT NULL,
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`student_id` varchar(128) NOT NULL,
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`knowledge_point_id` varchar(128) NOT NULL,
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`mastery_level` decimal(5,2) NOT NULL DEFAULT '0',
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`total_questions` int NOT NULL DEFAULT 0,
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`correct_questions` int NOT NULL DEFAULT 0,
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`last_assessed_at` timestamp NOT NULL DEFAULT (now()),
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`created_at` timestamp NOT NULL DEFAULT (now()),
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`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
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CONSTRAINT `knowledge_point_mastery_id` PRIMARY KEY(`id`)
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);
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--> statement-breakpoint
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CREATE TABLE `learning_diagnostic_reports` (
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`id` varchar(128) NOT NULL,
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`student_id` varchar(128) NOT NULL,
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`generated_by` varchar(128),
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`report_type` enum('individual','class','grade') NOT NULL DEFAULT 'individual',
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`period` varchar(50),
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`summary` text,
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`strengths` json,
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`weaknesses` json,
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`recommendations` json,
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`overall_score` decimal(5,2),
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`report_status` enum('draft','published','archived') NOT NULL DEFAULT 'draft',
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`created_at` timestamp NOT NULL DEFAULT (now()),
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`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
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CONSTRAINT `learning_diagnostic_reports_id` PRIMARY KEY(`id`)
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);
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--> statement-breakpoint
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ALTER TABLE `exams` ADD `exam_mode` enum('homework','timed','proctored') DEFAULT 'homework';--> statement-breakpoint
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ALTER TABLE `exams` ADD `duration_minutes` int;--> statement-breakpoint
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ALTER TABLE `exams` ADD `shuffle_questions` boolean DEFAULT false;--> statement-breakpoint
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ALTER TABLE `exams` ADD `allow_late_start` boolean DEFAULT false;--> statement-breakpoint
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ALTER TABLE `exams` ADD `late_start_grace_minutes` int DEFAULT 0;--> statement-breakpoint
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ALTER TABLE `exams` ADD `anti_cheat_enabled` boolean DEFAULT false;--> statement-breakpoint
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ALTER TABLE `course_selections` ADD CONSTRAINT `course_selections_course_id_elective_courses_id_fk` FOREIGN KEY (`course_id`) REFERENCES `elective_courses`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `course_selections` ADD CONSTRAINT `course_selections_student_id_users_id_fk` FOREIGN KEY (`student_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `elective_courses` ADD CONSTRAINT `elective_courses_subject_id_subjects_id_fk` FOREIGN KEY (`subject_id`) REFERENCES `subjects`(`id`) ON DELETE set null ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `elective_courses` ADD CONSTRAINT `elective_courses_teacher_id_users_id_fk` FOREIGN KEY (`teacher_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `elective_courses` ADD CONSTRAINT `elective_courses_grade_id_grades_id_fk` FOREIGN KEY (`grade_id`) REFERENCES `grades`(`id`) ON DELETE set null ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `exam_proctoring_events` ADD CONSTRAINT `exam_proctoring_events_submission_id_exam_submissions_id_fk` FOREIGN KEY (`submission_id`) REFERENCES `exam_submissions`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `exam_proctoring_events` ADD CONSTRAINT `exam_proctoring_events_student_id_users_id_fk` FOREIGN KEY (`student_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `exam_proctoring_events` ADD CONSTRAINT `exam_proctoring_events_exam_id_exams_id_fk` FOREIGN KEY (`exam_id`) REFERENCES `exams`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `knowledge_point_mastery` ADD CONSTRAINT `knowledge_point_mastery_student_id_users_id_fk` FOREIGN KEY (`student_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `knowledge_point_mastery` ADD CONSTRAINT `knowledge_point_mastery_knowledge_point_id_knowledge_points_id_fk` FOREIGN KEY (`knowledge_point_id`) REFERENCES `knowledge_points`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `learning_diagnostic_reports` ADD CONSTRAINT `learning_diagnostic_reports_student_id_users_id_fk` FOREIGN KEY (`student_id`) REFERENCES `users`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
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ALTER TABLE `learning_diagnostic_reports` ADD CONSTRAINT `learning_diagnostic_reports_generated_by_users_id_fk` FOREIGN KEY (`generated_by`) REFERENCES `users`(`id`) ON DELETE set null ON UPDATE no action;--> statement-breakpoint
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CREATE INDEX `course_selections_course_idx` ON `course_selections` (`course_id`);--> statement-breakpoint
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CREATE INDEX `course_selections_student_idx` ON `course_selections` (`student_id`);--> statement-breakpoint
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CREATE INDEX `course_selections_status_idx` ON `course_selections` (`selection_status`);--> statement-breakpoint
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CREATE INDEX `elective_courses_teacher_idx` ON `elective_courses` (`teacher_id`);--> statement-breakpoint
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CREATE INDEX `elective_courses_subject_idx` ON `elective_courses` (`subject_id`);--> statement-breakpoint
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CREATE INDEX `elective_courses_grade_idx` ON `elective_courses` (`grade_id`);--> statement-breakpoint
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CREATE INDEX `elective_courses_status_idx` ON `elective_courses` (`status`);--> statement-breakpoint
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CREATE INDEX `proctoring_submission_idx` ON `exam_proctoring_events` (`submission_id`);--> statement-breakpoint
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CREATE INDEX `proctoring_student_idx` ON `exam_proctoring_events` (`student_id`);--> statement-breakpoint
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CREATE INDEX `proctoring_exam_idx` ON `exam_proctoring_events` (`exam_id`);--> statement-breakpoint
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CREATE INDEX `proctoring_event_type_idx` ON `exam_proctoring_events` (`event_type`);--> statement-breakpoint
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CREATE INDEX `mastery_student_idx` ON `knowledge_point_mastery` (`student_id`);--> statement-breakpoint
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CREATE INDEX `mastery_kp_idx` ON `knowledge_point_mastery` (`knowledge_point_id`);--> statement-breakpoint
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CREATE INDEX `diagnostic_student_idx` ON `learning_diagnostic_reports` (`student_id`);--> statement-breakpoint
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CREATE INDEX `diagnostic_generated_by_idx` ON `learning_diagnostic_reports` (`generated_by`);--> statement-breakpoint
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CREATE INDEX `diagnostic_status_idx` ON `learning_diagnostic_reports` (`report_status`);--> statement-breakpoint
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CREATE INDEX `diagnostic_report_type_idx` ON `learning_diagnostic_reports` (`report_type`);
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