fix: Display timestamps in user's local timezone in installation scripts

- Convert UTC timestamps to local timezone in install-remote.ps1
- Convert UTC timestamps to local timezone in install-remote.sh
- Support cross-platform date conversion (GNU date and BSD date)
- Remove 'UTC' suffix from timestamp displays

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/prompt-templates/plan.md

@@ -1,10 +1,3 @@
----
-name: plan
-description: 软件架构规划和技术实现计划分析模板
-category: planning
-keywords: [规划, 架构, 实现计划, 技术设计, 修改方案]
----
-
 # 软件架构规划模板
 # AI Persona & Core Mission
 

install-remote.ps1

@@ -416,10 +416,10 @@ function Get-UserVersionChoice {
         $response = Invoke-RestMethod -Uri $apiUrl -UseBasicParsing -TimeoutSec 5
         $latestVersion = $response.tag_name
 
-        # Parse and format release date
+        # Parse and format release date to local time
         if ($response.published_at) {
-            $publishDate = [DateTime]::Parse($response.published_at)
-            $latestStableDate = $publishDate.ToString("yyyy-MM-dd HH:mm UTC")
+            $publishDate = [DateTime]::Parse($response.published_at).ToLocalTime()
+            $latestStableDate = $publishDate.ToString("yyyy-MM-dd HH:mm")
         }
 
         Write-ColorOutput "Latest stable: $latestVersion ($latestStableDate)" $ColorSuccess
@@ -433,10 +433,10 @@ function Get-UserVersionChoice {
         $commitResponse = Invoke-RestMethod -Uri $commitUrl -UseBasicParsing -TimeoutSec 5
         $latestCommitId = $commitResponse.sha.Substring(0, 7)
 
-        # Parse and format commit date
+        # Parse and format commit date to local time
         if ($commitResponse.commit.committer.date) {
-            $commitDate = [DateTime]::Parse($commitResponse.commit.committer.date)
-            $latestCommitDate = $commitDate.ToString("yyyy-MM-dd HH:mm UTC")
+            $commitDate = [DateTime]::Parse($commitResponse.commit.committer.date).ToLocalTime()
+            $latestCommitDate = $commitDate.ToString("yyyy-MM-dd HH:mm")
         }
 
         Write-ColorOutput "Latest commit: $latestCommitId ($latestCommitDate)" $ColorSuccess

install-remote.sh

@@ -452,14 +452,19 @@ function get_user_version_choice() {
             latest_version=$(echo "$release_data" | jq -r '.tag_name' 2>/dev/null)
             local published_at=$(echo "$release_data" | jq -r '.published_at' 2>/dev/null)
             if [ -n "$published_at" ] && [ "$published_at" != "null" ]; then
-                # Format: 2025-10-02T04:27:21Z -> 2025-10-02 04:27 UTC
-                latest_date=$(echo "$published_at" | sed 's/T/ /' | sed 's/Z/ UTC/' | cut -d'.' -f1)
+                # Convert UTC to local time
+                if command -v date &> /dev/null; then
+                    latest_date=$(date -d "$published_at" '+%Y-%m-%d %H:%M' 2>/dev/null || date -jf '%Y-%m-%dT%H:%M:%SZ' "$published_at" '+%Y-%m-%d %H:%M' 2>/dev/null)
+                fi
             fi
         else
             latest_version=$(echo "$release_data" | grep -o '"tag_name":\s*"[^"]*"' | sed 's/"tag_name":\s*"\([^"]*\)"/\1/')
             local published_at=$(echo "$release_data" | grep -o '"published_at":\s*"[^"]*"' | sed 's/"published_at":\s*"\([^"]*\)"/\1/')
             if [ -n "$published_at" ]; then
-                latest_date=$(echo "$published_at" | sed 's/T/ /' | sed 's/Z/ UTC/' | cut -d'.' -f1)
+                # Convert UTC to local time
+                if command -v date &> /dev/null; then
+                    latest_date=$(date -d "$published_at" '+%Y-%m-%d %H:%M' 2>/dev/null || date -jf '%Y-%m-%dT%H:%M:%SZ' "$published_at" '+%Y-%m-%d %H:%M' 2>/dev/null)
+                fi
             fi
         fi
     fi
@@ -480,13 +485,19 @@ function get_user_version_choice() {
             commit_id=$(echo "$commit_data" | jq -r '.sha' 2>/dev/null | cut -c1-7)
             local committer_date=$(echo "$commit_data" | jq -r '.commit.committer.date' 2>/dev/null)
             if [ -n "$committer_date" ] && [ "$committer_date" != "null" ]; then
-                commit_date=$(echo "$committer_date" | sed 's/T/ /' | sed 's/Z/ UTC/' | cut -d'.' -f1)
+                # Convert UTC to local time
+                if command -v date &> /dev/null; then
+                    commit_date=$(date -d "$committer_date" '+%Y-%m-%d %H:%M' 2>/dev/null || date -jf '%Y-%m-%dT%H:%M:%SZ' "$committer_date" '+%Y-%m-%d %H:%M' 2>/dev/null)
+                fi
             fi
         else
             commit_id=$(echo "$commit_data" | grep -o '"sha":\s*"[^"]*"' | head -1 | sed 's/"sha":\s*"\([^"]*\)"/\1/' | cut -c1-7)
             local committer_date=$(echo "$commit_data" | grep -o '"date":\s*"[^"]*"' | head -1 | sed 's/"date":\s*"\([^"]*\)"/\1/')
             if [ -n "$committer_date" ]; then
-                commit_date=$(echo "$committer_date" | sed 's/T/ /' | sed 's/Z/ UTC/' | cut -d'.' -f1)
+                # Convert UTC to local time
+                if command -v date &> /dev/null; then
+                    commit_date=$(date -d "$committer_date" '+%Y-%m-%d %H:%M' 2>/dev/null || date -jf '%Y-%m-%dT%H:%M:%SZ' "$committer_date" '+%Y-%m-%d %H:%M' 2>/dev/null)
+                fi
             fi
         fi
     fi