feat(seed): ~5x richer demo data via deterministic generators

Rewrite scripts/seed-demo.ts as a thin orchestrator over a new scripts/seed/ module (rng, pools, helpers, content, schedule, logs, generators). Scales demo data from 6 users/3 projects to ~30 users/15 projects with ~5-8x per-table content (~6.8x total rows) via a seeded mulberry32 PRNG for full reproducibility (incl. bcrypt salts and file/URL identifiers). FK-safe ordering, real captured IDs for activity logs, enum pools typed against lib/types. Preserves canonical login credentials and projects.

scripts/seed/schedule.ts

@@ -0,0 +1,138 @@
+/**
+ * スケジュール系エンティティの生成器(マイルストーン/ミーティング/カレンダー)。
+ */
+import type { SqliteDatabase } from '@/lib/db/sqlite';
+import type { MeetingMemberStatus, MilestoneStatus } from '@/lib/types';
+import { chance, pick, pickN, randInt, seededUuid, type Rng } from './rng';
+import { CALENDAR_TITLES, CALENDAR_TYPES, MEETING_TITLES } from './pools';
+import { dayStr, daysFromNow, insert, now } from './helpers';
+
+const MILESTONE_STATUS_OPEN: MilestoneStatus = 'open';
+const MEETING_MEMBER_INVITED: MeetingMemberStatus = 'invited';
+
+export function seedMilestones(
+  db: SqliteDatabase,
+  rng: Rng,
+  projectId: number
+): number[] {
+  const ids: number[] = [];
+  const phases = ['計画', '設計', '実装', 'テスト', 'リリース', '振り返り'];
+  const count = randInt(rng, 2, 4);
+  for (let i = 0; i < count; i++) {
+    const id = insert(
+      db,
+      `INSERT INTO milestones (project_id, title, description, due_date, status, created_at, updated_at, deleted_at)
+       VALUES (@projectId, @title, @description, @dueDate, @status, @createdAt, @updatedAt, NULL)`,
+      {
+        projectId,
+        title: `M${i + 1}: ${phases[i % phases.length]}完了`,
+        description: 'マイルストーンです。',
+        dueDate: dayStr(randInt(rng, 3, 60)),
+        status: MILESTONE_STATUS_OPEN,
+        createdAt: now(),
+        updatedAt: now(),
+      }
+    );
+    ids.push(id);
+  }
+  return ids;
+}
+
+export function seedMeetings(
+  db: SqliteDatabase,
+  rng: Rng,
+  projectId: number,
+  creatorId: number,
+  memberIds: number[]
+): number[] {
+  const ids: number[] = [];
+  const count = randInt(rng, 1, 2);
+  for (let i = 0; i < count; i++) {
+    const offset = randInt(rng, -5, 30);
+    const id = insert(
+      db,
+      `INSERT INTO meetings (project_id, title, description, location, meeting_url, start_at, end_at, agenda_md, minutes_md, created_by_id, created_at, updated_at, deleted_at)
+       VALUES (@projectId, @title, @description, @location, @meetingUrl, @startAt, @endAt, @agendaMd, @minutesMd, @createdById, @createdAt, @updatedAt, NULL)`,
+      {
+        projectId,
+        title: pick(rng, MEETING_TITLES),
+        description: '進捗確認と課題共有',
+        location: pick(rng, [
+          '会議室A',
+          '会議室B',
+          'オンライン',
+          '会議室A / オンライン',
+        ]),
+        meetingUrl: chance(rng, 0.7)
+          ? `https://meet.example.com/${seededUuid(rng).slice(0, 8)}`
+          : null,
+        startAt: daysFromNow(offset),
+        endAt: daysFromNow(offset),
+        agendaMd:
+          '# アジェンダ\n\n1. 進捗共有\n2. ブロッカー確認\n3. 次週の計画',
+        minutesMd: chance(rng, 0.6)
+          ? '# 議事録\n\n- 進捗は順調\n- 課題を共有\n- 次週も継続'
+          : null,
+        createdById: creatorId,
+        createdAt: now(),
+        updatedAt: now(),
+      }
+    );
+    const attendeeCount = randInt(rng, 2, Math.max(2, memberIds.length));
+    for (const uid of pickN(rng, memberIds, attendeeCount)) {
+      insert(
+        db,
+        `INSERT INTO meeting_members (meeting_id, user_id, status)
+         VALUES (@meetingId, @userId, @status)`,
+        { meetingId: id, userId: uid, status: MEETING_MEMBER_INVITED }
+      );
+    }
+    ids.push(id);
+  }
+  return ids;
+}
+
+export function seedCalendar(
+  db: SqliteDatabase,
+  rng: Rng,
+  projectId: number,
+  creatorId: number,
+  todoIds: number[],
+  milestoneIds: number[],
+  meetingIds: number[]
+): number[] {
+  const ids: number[] = [];
+  const count = randInt(rng, 3, 5);
+  for (let i = 0; i < count; i++) {
+    const type = pick(rng, CALENDAR_TYPES);
+    const offset = randInt(rng, -7, 45);
+    const id = insert(
+      db,
+      `INSERT INTO calendar_events (project_id, title, description, type, start_at, end_at, created_by_id, related_todo_id, related_milestone_id, related_meeting_id, created_at, updated_at, deleted_at)
+       VALUES (@projectId, @title, @description, @type, @startAt, @endAt, @createdById, @relatedTodoId, @relatedMilestoneId, @relatedMeetingId, @createdAt, @updatedAt, NULL)`,
+      {
+        projectId,
+        title: pick(rng, CALENDAR_TITLES),
+        description: 'カレンダーイベントです。',
+        type,
+        startAt: type === 'deadline' ? dayStr(offset) : daysFromNow(offset),
+        endAt: chance(rng, 0.4) ? daysFromNow(offset) : null,
+        createdById: creatorId,
+        relatedTodoId:
+          chance(rng, 0.2) && todoIds.length > 0 ? pick(rng, todoIds) : null,
+        relatedMilestoneId:
+          chance(rng, 0.15) && milestoneIds.length > 0
+            ? pick(rng, milestoneIds)
+            : null,
+        relatedMeetingId:
+          chance(rng, 0.15) && meetingIds.length > 0
+            ? pick(rng, meetingIds)
+            : null,
+        createdAt: now(),
+        updatedAt: now(),
+      }
+    );
+    ids.push(id);
+  }
+  return ids;
+}