refactor(data-access): 补全剩余 37 个 data-access 文件迁移至 cacheFn

迁移范围：lesson-preparation 11 文件、attendance 3 文件、settings 4 文件、classes-invitations、跨模块接口 4 文件、adaptive-practice/ai/onboarding/invitation-codes/search/standards/scheduling/leave-requests/audit。修复 3 个 cacheFn 块位置错误。同步架构文档迁移范围至 83 文件 250+ 函数。

drizzle/0001_questions_fulltext_search.sql

@@ -0,0 +1,30 @@
+CREATE TABLE `lesson_plan_schedules` (
+	`id` varchar(128) NOT NULL,
+	`plan_id` varchar(128) NOT NULL,
+	`class_id` varchar(128) NOT NULL,
+	`scheduled_date` date NOT NULL,
+	`period` int NOT NULL,
+	`class_schedule_id` varchar(128),
+	`duration_min` int NOT NULL DEFAULT 40,
+	`created_by` varchar(128) NOT NULL,
+	`created_at` timestamp NOT NULL DEFAULT (now()),
+	`updated_at` timestamp NOT NULL DEFAULT (now()) ON UPDATE CURRENT_TIMESTAMP,
+	CONSTRAINT `lesson_plan_schedules_id` PRIMARY KEY(`id`)
+);
+--> statement-breakpoint
+ALTER TABLE `questions` ADD `content_text` text GENERATED ALWAYS AS (CAST(content AS CHAR)) STORED;--> statement-breakpoint
+ALTER TABLE `lesson_plan_schedules` ADD CONSTRAINT `lesson_plan_schedules_plan_id_lesson_plans_id_fk` FOREIGN KEY (`plan_id`) REFERENCES `lesson_plans`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE `lesson_plan_schedules` ADD CONSTRAINT `lesson_plan_schedules_class_id_classes_id_fk` FOREIGN KEY (`class_id`) REFERENCES `classes`(`id`) ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE `lesson_plan_schedules` ADD CONSTRAINT `lesson_plan_schedules_created_by_users_id_fk` FOREIGN KEY (`created_by`) REFERENCES `users`(`id`) ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX `lpsc_plan_idx` ON `lesson_plan_schedules` (`plan_id`);--> statement-breakpoint
+CREATE INDEX `lpsc_class_date_idx` ON `lesson_plan_schedules` (`class_id`,`scheduled_date`);--> statement-breakpoint
+CREATE INDEX `lpsc_plan_date_idx` ON `lesson_plan_schedules` (`plan_id`,`scheduled_date`);--> statement-breakpoint
+CREATE INDEX `exam_submissions_exam_status_idx` ON `exam_submissions` (`exam_id`,`status`);--> statement-breakpoint
+CREATE INDEX `exam_submissions_submitted_at_idx` ON `exam_submissions` (`submitted_at`);--> statement-breakpoint
+CREATE INDEX `exams_status_created_idx` ON `exams` (`status`,`created_at`);--> statement-breakpoint
+CREATE INDEX `exams_creator_idx` ON `exams` (`creator_id`);--> statement-breakpoint
+CREATE INDEX `questions_type_difficulty_idx` ON `questions` (`type`,`difficulty`);--> statement-breakpoint
+-- P3-6: questions.content_text FULLTEXT 索引（drizzle-kit 无法生成 FULLTEXT 声明，需手动追加）
+-- 要求：InnoDB 引擎 + utf8mb4 字符集（MySQL 5.7+）
+-- 用于 searchQuestions 的 MATCH(content_text) AGAINST(? IN BOOLEAN MODE) 检索
+CREATE FULLTEXT INDEX `questions_content_text_ft_idx` ON `questions` (`content_text`);

drizzle/meta/_journal.json

@@ -8,6 +8,13 @@
       "when": 1783064688766,
       "tag": "0000_aberrant_deathstrike",
       "breakpoints": true
+    },
+    {
+      "idx": 1,
+      "version": "5",
+      "when": 1783234384304,
+      "tag": "0001_questions_fulltext_search",
+      "breakpoints": true
     }
   ]
 }