feat(dev-task): 开发任务模块 V1 完整实现

- 核心库：dev-task.ts（类型+状态机+进度计算）、task-worklog.ts（工时）、task-category.ts（字典）、work-item.ts（聚合契约）
- Store：useDevTaskStore（CRUD+状态流转）、useTaskWorklogStore（工时记录）、useTaskCategoryStore（字典管理）
- UI组件：DevTaskTab、DevTaskCreateModal、DevTaskDetailDrawer、DevTaskRow、WorklogPanel、StatusBadge、CategoryChip
- 集成：版本详情页"开发任务"Tab、"与我相关"工作台开发任务分组、任务类型管理页
- 设计文档：spec + 实施计划

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/app/workspace/page.tsx

@@ -2,22 +2,27 @@
 
 import { useEffect, useMemo, useState } from 'react';
 import { useRouter } from 'next/navigation';
-import { Search, FileText, Palette, Layout, ClipboardList, Check, ExternalLink, Link2, FileUp } from 'lucide-react';
+import { Search, FileText, Palette, Layout, ClipboardList, Check, ExternalLink, Link2, FileUp, Code2 } from 'lucide-react';
 import { useProductStore } from '@/stores/useProductStore';
 import { useVersionPlanStore } from '@/stores/useVersionPlanStore';
 import { useRequirementStore } from '@/stores/useRequirementStore';
+import { useDevTaskStore } from '@/stores/useDevTaskStore';
+import { useTaskCategoryStore } from '@/stores/useTaskCategoryStore';
 import { useAuthStore } from '@/stores/useAuthStore';
 import { flattenVersions } from '@/lib/derive';
 import { calcPlanProgress, calcLinkedReqProgress } from '@/lib/version-plan';
+import { DEV_TASK_STATUS_LABEL, DEV_TASK_STATUS_COLOR, formatHours } from '@/lib/dev-task';
 import type { PlanTask, VersionPlan } from '@/lib/version-plan';
+import type { DevTask } from '@/lib/dev-task';
 
-type TabKey = 'all' | 'research' | 'product' | 'ui';
+type TabKey = 'all' | 'research' | 'product' | 'ui' | 'devTask';
 
 const TABS: { key: TabKey; label: string; icon: any }[] = [
   { key: 'all', label: '全部待办', icon: ClipboardList },
   { key: 'research', label: '调研', icon: Search },
   { key: 'product', label: '产品方案', icon: FileText },
   { key: 'ui', label: 'UI设计', icon: Palette },
+  { key: 'devTask', label: '开发任务', icon: Code2 },
 ];
 
 export default function WorkspacePage() {
@@ -25,6 +30,8 @@ export default function WorkspacePage() {
   const { overview, fetchOverview } = useProductStore();
   const { plans, fetchPlans, updatePlan, completePlan } = useVersionPlanStore();
   const { requirements, fetchRequirements } = useRequirementStore();
+  const { tasks: devTasks, fetchTasks } = useDevTaskStore();
+  const { categories, fetchCategories } = useTaskCategoryStore();
   const user = useAuthStore((s) => s.user);
   const [activeTab, setActiveTab] = useState<TabKey>('all');
   const [completingPlan, setCompletingPlan] = useState<VersionPlan | null>(null);
@@ -32,6 +39,8 @@ export default function WorkspacePage() {
   useEffect(() => { fetchOverview(); }, [fetchOverview]);
   useEffect(() => { fetchPlans(); }, [fetchPlans]);
   useEffect(() => { fetchRequirements(); }, [fetchRequirements]);
+  useEffect(() => { fetchTasks(); }, [fetchTasks]);
+  useEffect(() => { fetchCategories(); }, [fetchCategories]);
 
   const userName = user?.name ?? '';
   const allVersions = useMemo(() => flattenVersions(overview), [overview]);
@@ -42,14 +51,21 @@ export default function WorkspacePage() {
     [plans, userName]
   );
 
+  // 我负责的所有未完成开发任务
+  const myDevTasks = useMemo(() =>
+    devTasks.filter((t) => t.assigneeId === userName && t.status !== 'done'),
+    [devTasks, userName]
+  );
+
   const counts = {
-    all: myPlans.length,
+    all: myPlans.length + myDevTasks.length,
     research: myPlans.filter((p) => p.type === 'research').length,
     product: myPlans.filter((p) => p.type === 'product').length,
     ui: myPlans.filter((p) => p.type === 'ui').length,
+    devTask: myDevTasks.length,
   };
 
-  const filtered = activeTab === 'all' ? myPlans : myPlans.filter((p) => p.type === activeTab);
+  const filtered = activeTab === 'all' ? myPlans : activeTab === 'devTask' ? [] : myPlans.filter((p) => p.type === activeTab);
   const today = new Date().toISOString().slice(0, 10);
 
   const toggleTask = (plan: VersionPlan, task: PlanTask) => {
@@ -97,11 +113,44 @@ export default function WorkspacePage() {
           <h2 className="text-[14px] font-semibold text-[var(--ink)]">
             {TABS.find((t) => t.key === activeTab)?.label}
           </h2>
-          <span className="ml-2 text-[12px] text-[var(--ink-muted)]">{filtered.length} 项</span>
+          <span className="ml-2 text-[12px] text-[var(--ink-muted)]">{activeTab === 'devTask' ? myDevTasks.length : filtered.length} 项</span>
         </header>
 
         <div className="flex-1 overflow-y-auto p-5 bg-[var(--bg)] space-y-3">
-          {filtered.length === 0 ? (
+          {activeTab === 'devTask' ? (
+            myDevTasks.length === 0 ? (
+              <div className="rounded-xl border border-dashed border-[var(--line)] bg-[var(--bg-card)] p-12 text-center">
+                <p className="text-[13px] text-[var(--ink-muted)]">暂无开发任务</p>
+              </div>
+            ) : (
+              myDevTasks.map((task) => {
+                const cat = categories.find((c) => c.id === task.categoryId);
+                const req = requirements.find((r) => r.id === task.requirementId);
+                return (
+                  <div key={task.id} className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4">
+                    <div className="flex items-center justify-between mb-2">
+                      <div className="flex items-center gap-2">
+                        <span className={`text-[10px] font-medium px-2 py-0.5 rounded-full ${DEV_TASK_STATUS_COLOR[task.status]}`}>
+                          {DEV_TASK_STATUS_LABEL[task.status]}
+                        </span>
+                        {task.isBlocked && <span className="text-[10px] text-red-500 bg-red-50 px-1.5 py-0.5 rounded">阻塞</span>}
+                        <span className="text-[11px] font-mono text-[var(--ink-muted)]">{task.taskNo}</span>
+                        <span className="text-[14px] font-medium text-[var(--ink)]">{task.title}</span>
+                      </div>
+                      <span className="text-[11px] text-[var(--ink-muted)]">{task.priority}</span>
+                    </div>
+                    <div className="flex items-center gap-4 text-[11px] text-[var(--ink-muted)]">
+                      {req && <span>{req.code} {req.title}</span>}
+                      {cat && <span className="px-1.5 py-0.5 rounded text-[10px]" style={{ backgroundColor: cat.color ? `${cat.color}15` : undefined, color: cat.color }}>{cat.name}</span>}
+                      <span>预计 {formatHours(task.estimateHours)}</span>
+                      {task.actualHours > 0 && <span>已投入 {task.actualHours}h</span>}
+                      {task.dueDate && <span>截止 {task.dueDate}</span>}
+                    </div>
+                  </div>
+                );
+              })
+            )
+          ) : filtered.length === 0 ? (
             <div className="rounded-xl border border-dashed border-[var(--line)] bg-[var(--bg-card)] p-12 text-center">
               <p className="text-[13px] text-[var(--ink-muted)]">暂无待办事项</p>
             </div>