新增: Phase2 阶段收尾（Sprint 1-20）

重构：删 5 零引用 crate（df-evolve/plugin/stages/task/traceability）+ 清死模块、ai.rs 拆 11 子 module、ai.ts 拆 6 composable、i18n 拆目录
功能：知识库全栈（df-project/scan + CRUD + 时间线 + 前端）、Settings 拆分、appSettings KV 迁移、模型池、LLM 并发 Semaphore
修复：审批持久化根治、ConditionEngine 默认拒绝、NodeRegistry unimplemented 清除、promote 补偿删除、工具结果截断 50KB、路径校验防 symlink 逃逸
文档：B-03 人工审批设计、决策记录三分档、规格契约自检、经验记录、todo 看板、PROGRESS 更新

详见 PROGRESS.md。src-tauri/儿童每日打卡应用/ 与本项目无关，已排除。

src/constants/project.ts

@@ -0,0 +1,101 @@
+//! 项目 & 任务状态映射常量
+//!
+//! 统一各视图(Projects/ProjectDetail/Tasks/Dashboard)的 label / badge / 阶段进度,
+//! 根治此前三套状态映射互相矛盾、任务文案两处不一致的问题。
+
+// ── 项目状态 ──
+
+// 值为 i18n key,实际文案走 $t('projects.status.<key>')(见 src/i18n/{zh-CN,en}/projects.ts)
+export const PROJECT_STATUS_LABELS: Record<string, string> = {
+  planning: 'projects.status.planning',
+  in_progress: 'projects.status.in_progress',
+  paused: 'projects.status.paused',
+  completed: 'projects.status.completed',
+  cancelled: 'projects.status.cancelled',
+  active: 'projects.status.active',
+}
+
+/** 项目状态 → 卡片 badge 样式 class */
+export const PROJECT_STATUS_BADGE_CLASS: Record<string, string> = {
+  planning: 'stage-design',
+  in_progress: 'stage-coding',
+  paused: 'stage-testing',
+  completed: 'stage-release',
+  cancelled: 'stage-design',
+}
+
+/** 项目状态 → 阶段/进度信息(详情页 pipeline + Dashboard 进度条共用) */
+export interface ProjectStageInfo {
+  /** pipeline 步骤索引 0-4: idea/requirement/coding/testing/release */
+  stepIndex: number
+  /** 进度百分比 */
+  progress: number
+  /** Dashboard dot/chip 颜色档: coding/testing/release */
+  stage: string
+}
+
+export const PROJECT_STAGE_INFO: Record<string, ProjectStageInfo> = {
+  planning: { stepIndex: 0, progress: 20, stage: 'coding' },
+  in_progress: { stepIndex: 2, progress: 55, stage: 'coding' },
+  paused: { stepIndex: 2, progress: 40, stage: 'testing' },
+  completed: { stepIndex: 4, progress: 100, stage: 'release' },
+  cancelled: { stepIndex: 0, progress: 0, stage: 'testing' },
+}
+
+export function projectStatusLabel(status: string): string {
+  return PROJECT_STATUS_LABELS[status] ?? status
+}
+
+export function projectBadgeClass(status: string): string {
+  return PROJECT_STATUS_BADGE_CLASS[status] ?? 'stage-design'
+}
+
+export function projectStageInfo(status: string): ProjectStageInfo {
+  return PROJECT_STAGE_INFO[status] ?? PROJECT_STAGE_INFO.planning
+}
+
+// ── 任务状态 ──
+
+// 值为 i18n key,实际文案走 $t('tasks.status.<key>')(见 src/i18n/{zh-CN,en}/tasks.ts)
+export const TASK_STATUS_LABELS: Record<string, string> = {
+  todo: 'tasks.status.todo',
+  in_progress: 'tasks.status.in_progress',
+  review_ready: 'tasks.status.review_ready',
+  merged: 'tasks.status.merged',
+  abandoned: 'tasks.status.abandoned',
+}
+
+export const TASK_STATUS_CLASS: Record<string, string> = {
+  todo: 'status-todo',
+  in_progress: 'status-progress',
+  review_ready: 'status-review',
+  merged: 'status-done',
+  abandoned: 'status-abandoned',
+}
+
+export function taskStatusLabel(status: string): string {
+  return TASK_STATUS_LABELS[status] ?? status
+}
+
+export function taskStatusClass(status: string): string {
+  return TASK_STATUS_CLASS[status] ?? 'status-todo'
+}
+
+// ── 任务优先级 ──
+
+export const PRIORITY_LABELS: Record<number, string> = { 0: 'P0', 1: 'P1', 2: 'P2', 3: 'P3' }
+
+export const PRIORITY_CLASSES: Record<number, string> = {
+  0: 'priority-critical',
+  1: 'priority-high',
+  2: 'priority-medium',
+  3: 'priority-low',
+}
+
+export function priorityLabel(p: number): string {
+  return PRIORITY_LABELS[p] ?? `P${p}`
+}
+
+export function priorityClass(p: number): string {
+  return PRIORITY_CLASSES[p] ?? 'priority-low'
+}