refactor: migrate to monorepo structure with Docker, PocketBase, and e2e tests

- Reorganize into apps/, packages/, docs/, e2e/, pocketbase/ directories
- Add Dockerfiles for web, worker, and PocketBase services
- Add docker-compose.yml for local orchestration
- Add turbo.json for monorepo task management
- Add Playwright e2e test infrastructure
- Add PocketBase backend with migrations
- Remove Vite/Next.js/ESLint/PostCSS config files
- Update package.json with workspace dependencies
- Add .env.example and .dockerignore

packages/shared/src/schemas/task.ts

@@ -0,0 +1,71 @@
+import { z } from 'zod';
+
+// ── Enums ────────────────────────────────────────────────────────────────────
+
+export const taskStatusEnum = z.enum(['todo', 'in_progress', 'done', 'cancelled']);
+export const taskPriorityEnum = z.enum(['low', 'medium', 'high', 'urgent']);
+
+// ── Sub-schemas ──────────────────────────────────────────────────────────────
+
+export const recurringConfigSchema = z.object({
+  rule: z.string().min(1, 'Recurrence rule is required'),
+  next_due: z.string().datetime().optional(),
+});
+
+export const attachmentSchema = z.object({
+  id: z.string(),
+  filename: z.string(),
+  mime_type: z.string(),
+  size: z.number().int().nonnegative(),
+  url: z.string(),
+});
+
+export const subtaskSchema = z.object({
+  id: z.string(),
+  title: z.string().min(1, 'Subtask title is required'),
+  done: z.boolean().default(false),
+  sort_order: z.number().int().nonnegative().default(0),
+});
+
+// ── Task Schema ──────────────────────────────────────────────────────────────
+
+export const taskSchema = z.object({
+  id: z.string(),
+  title: z.string().min(1, 'Title is required'),
+  description: z.string().optional(),
+  status: taskStatusEnum.default('todo'),
+  priority: taskPriorityEnum.default('medium'),
+  due_date: z.string().datetime().optional(),
+  project_id: z.string().optional(),
+  milestone_id: z.string().optional(),
+  tags: z.array(z.string()).default([]),
+  domain: z.string(),
+  assignee: z.string().optional(),
+  estimate: z.number().int().positive().optional(),
+  time_spent: z.number().int().nonnegative().default(0),
+  recurring_config: recurringConfigSchema.optional(),
+  attachments: z.array(attachmentSchema).default([]),
+  dependencies: z.array(z.string()).default([]),
+  subtasks: z.array(subtaskSchema).default([]),
+  custom_fields: z.record(z.unknown()).optional(),
+  completed_at: z.string().datetime().optional(),
+  created: z.string().datetime(),
+  updated: z.string().datetime(),
+});
+
+export const createTaskSchema = taskSchema.omit({
+  id: true,
+  created: true,
+  updated: true,
+});
+
+export const updateTaskSchema = createTaskSchema.partial();
+
+// ── Types ────────────────────────────────────────────────────────────────────
+
+export type Task = z.infer<typeof taskSchema>;
+export type CreateTask = z.infer<typeof createTaskSchema>;
+export type UpdateTask = z.infer<typeof updateTaskSchema>;
+export type RecurringConfig = z.infer<typeof recurringConfigSchema>;
+export type Attachment = z.infer<typeof attachmentSchema>;
+export type Subtask = z.infer<typeof subtaskSchema>;