feat: 新增 target description 字段，收紧 id/name 长度，调整延迟列和名称列

tests/web/components/OverviewTab.test.tsx

@@ -9,6 +9,7 @@ import { OverviewTab } from "../../../src/web/components/OverviewTab";
 describe("OverviewTab", () => {
   const target: TargetStatus = {
     currentStreak: null,
+    description: null,
     group: "default",
     id: "1",
     interval: "30s",

tests/web/components/TargetBoard.test.tsx

@@ -19,6 +19,7 @@ describe("TargetBoard", () => {
   const targets: TargetStatus[] = [
     {
       currentStreak: null,
+      description: null,
       group: "default",
       id: "1",
       interval: "30s",
@@ -31,6 +32,7 @@ describe("TargetBoard", () => {
     },
     {
       currentStreak: null,
+      description: null,
       group: "production",
       id: "2",
       interval: "30s",

tests/web/components/TargetDetailDrawer.test.tsx

@@ -9,6 +9,7 @@ import { TargetDetailDrawer } from "../../../src/web/components/TargetDetailDraw
 describe("TargetDetailDrawer", () => {
   const target: TargetStatus = {
     currentStreak: null,
+    description: null,
     group: "default",
     id: "1",
     interval: "30s",

tests/web/components/TargetGroup.test.tsx

@@ -15,6 +15,7 @@ describe("TargetGroup", () => {
   const targets: TargetStatus[] = [
     {
       currentStreak: null,
+      description: null,
       group: "default",
       id: "1",
       interval: "30s",
@@ -33,6 +34,7 @@ describe("TargetGroup", () => {
     },
     {
       currentStreak: null,
+      description: null,
       group: "default",
       id: "2",
       interval: "30s",