kit初版，模型引入,agent优化

.cursor/hooks/check-changelog.ps1

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+# Changelog sync guard: compare source file mtime vs changelog mtime.
+# If source files are newer than changelog, inject a followup_message
+# reminding the agent to write changelog entries.
+#
+# 静默条件（不触发提醒）：
+#   1. 环境变量 CURSOR_SKIP_CHANGELOG 被设置（由 sessionStart hook 在非 agent 模式设置）
+#   2. Debug 模式 — 项目根目录存在 debug-*.log 文件，说明正在调试
+#   3. changelog 文件不存在
+#   4. .changelog-ack 标记文件存在且足够新（本会话已确认过 changelog 状态）
+
+$input = [Console]::In.ReadToEnd()
+
+# 检测 sessionStart 设置的跳过标志（覆盖一开始就是 debug/ask 模式的场景）
+if ($env:CURSOR_SKIP_CHANGELOG) {
+    Write-Output '{}'
+    exit 0
+}
+
+$changelog = ".cursor\changelog\changelog-headlines.md"
+$srcDir = "art-agent"
+
+if (-not (Test-Path $changelog)) {
+    Write-Output '{}'
+    exit 0
+}
+
+# 检测 debug 模式：项目中存在活跃的 debug 日志文件
+$debugLogs = Get-ChildItem -Path "." -Filter "debug-*.log" -Recurse -Depth 3 -ErrorAction SilentlyContinue |
+    Where-Object { $_.FullName -notlike "*node_modules*" -and $_.FullName -notlike "*venv*" }
+if ($debugLogs) {
+    Write-Output '{}'
+    exit 0
+}
+
+$clMtime = (Get-Item $changelog).LastWriteTime
+
+# 检测 ack 标记文件：Agent 已确认 changelog 状态（写入或跳过），本会话不再提醒
+$ackFile = ".cursor\changelog\.changelog-ack"
+if ((Test-Path $ackFile) -and (Get-Item $ackFile).LastWriteTime -ge $clMtime) {
+    Write-Output '{}'
+    exit 0
+}
+
+$extensions = @("*.py", "*.tsx", "*.ts", "*.css")
+$excludeDirs = @("node_modules", ".next", "__pycache__", "venv")
+
+$newerFile = $null
+foreach ($ext in $extensions) {
+    $files = Get-ChildItem -Path $srcDir -Filter $ext -Recurse -ErrorAction SilentlyContinue |
+        Where-Object {
+            $skip = $false
+            foreach ($ex in $excludeDirs) {
+                if ($_.FullName -like "*\$ex\*") { $skip = $true; break }
+            }
+            -not $skip -and $_.LastWriteTime -gt $clMtime
+        } |
+        Select-Object -First 1
+
+    if ($files) {
+        $newerFile = $files.Name
+        break
+    }
+}
+
+if ($newerFile) {
+    $msg = "[Hook] Source file updated (e.g. $newerFile) but changelog not synced. Run dev-changelog Skill operation A NOW to write all three changelog layers."
+    $json = '{"followup_message":"' + $msg.Replace('"','\"') + '"}'
+    Write-Output $json
+} else {
+    Write-Output '{}'
+}
+exit 0