resolve installation progress bar jitter in marketplace pages

apps/jingrow/frontend/src/views/dev/AppDetail.vue

@@ -266,12 +266,10 @@ async function performInstall() {
     // 优先使用文件URL，否则使用git仓库
     if (app.value.file_url) {
       installMessage.value = t('正在下载应用包...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装应用...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-from-url', new URLSearchParams({
         url: app.value.file_url
@@ -283,12 +281,10 @@ async function performInstall() {
       })
     } else if (app.value.repository_url) {
       installMessage.value = t('正在克隆仓库...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装应用...')
+      installProgress.value = 30
       
       const params = new URLSearchParams({
         repo_url: app.value.repository_url

apps/jingrow/frontend/src/views/dev/AppMarketplace.vue

@@ -294,12 +294,10 @@ async function performInstall(app: any) {
     // 优先使用文件URL，否则使用git仓库
     if (app.file_url) {
       installMessage.value = t('正在下载应用包...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装应用...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-from-url', new URLSearchParams({
         url: app.file_url
@@ -311,12 +309,10 @@ async function performInstall(app: any) {
       })
     } else if (app.repository_url) {
       installMessage.value = t('正在克隆仓库...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装应用...')
+      installProgress.value = 30
       
       const params = new URLSearchParams({
         repo_url: app.repository_url

apps/jingrow/frontend/src/views/dev/NodeDetail.vue

@@ -258,12 +258,10 @@ async function performInstall() {
     // 优先使用文件URL，否则使用git仓库
     if (node.value.file_url) {
       installMessage.value = t('Downloading node package...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('Installing node...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-node-from-url', new URLSearchParams({
         url: node.value.file_url
@@ -275,12 +273,10 @@ async function performInstall() {
       })
     } else if (node.value.repository_url) {
       installMessage.value = t('Cloning repository...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('Installing node...')
+      installProgress.value = 30
       
       const params = new URLSearchParams({
         repo_url: node.value.repository_url

apps/jingrow/frontend/src/views/dev/NodeMarketplace.vue

@@ -287,12 +287,10 @@ async function performInstall(node: any) {
     // 优先使用文件URL，否则使用git仓库
     if (node.file_url) {
       installMessage.value = t('Downloading node package...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('Installing node...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-node-from-url', new URLSearchParams({
         url: node.file_url
@@ -304,12 +302,10 @@ async function performInstall(node: any) {
       })
     } else if (node.repository_url) {
       installMessage.value = t('Cloning repository...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('Installing node...')
+      installProgress.value = 30
       
       const params = new URLSearchParams({
         repo_url: node.repository_url

apps/jingrow/frontend/src/views/dev/ToolDetail.vue

@@ -259,12 +259,10 @@ async function performInstall() {
     // 优先使用文件URL，否则使用git仓库
     if (tool.value.file_url) {
       installMessage.value = t('正在下载工具包...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装工具...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-tool-from-url', new URLSearchParams({
         tool_name: tool.value.name || tool.value.tool_name,
@@ -277,12 +275,10 @@ async function performInstall() {
       })
     } else if (tool.value.repository_url) {
       installMessage.value = t('正在克隆仓库...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装工具...')
+      installProgress.value = 30
       
       // 注意：目前后端可能还没有 install-tool-from-git API，需要检查
       message.warning(t('从Git仓库安装工具功能暂未实现'))

apps/jingrow/frontend/src/views/dev/ToolMarketplace.vue

@@ -272,12 +272,10 @@ async function performInstall(tool: any) {
     // 优先使用文件URL，否则使用git仓库
     if (tool.file_url) {
       installMessage.value = t('正在下载工具包...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装工具...')
+      installProgress.value = 30
       
       response = await axios.post('/jingrow/install-tool-from-url', new URLSearchParams({
         url: tool.file_url,
@@ -290,12 +288,10 @@ async function performInstall(tool: any) {
       })
     } else if (tool.repository_url) {
       installMessage.value = t('正在克隆仓库...')
-      setTimeout(() => {
+      installProgress.value = 20
-        installProgress.value = 20
-      }, 300)
       
-      installProgress.value = 30
       installMessage.value = t('正在安装工具...')
+      installProgress.value = 30
       
       // 注意：目前后端可能还没有 install-tool-from-git API，需要检查
       message.warning(t('从Git仓库安装工具功能暂未实现'))