kit初版，模型引入,agent优化

.cursor/hooks/session-init.ps1

@@ -0,0 +1,23 @@
+# session-init.ps1 — 会话启动时检测 composer_mode，非 agent 模式设置跳过标志
+#
+# sessionStart input 包含 composer_mode 字段（"agent" / "ask" / "edit" / "debug" 等）
+# 通过 env 输出的环境变量会传递给同会话内所有后续 hook
+
+$input = [Console]::In.ReadToEnd()
+
+try {
+    $data = $input | ConvertFrom-Json
+    $mode = $data.composer_mode
+} catch {
+    $mode = $null
+}
+
+Remove-Item ".cursor\changelog\.changelog-ack" -ErrorAction SilentlyContinue
+
+if ($mode -and $mode -ne "agent") {
+    $json = '{"env":{"CURSOR_SKIP_CHANGELOG":"1","CURSOR_COMPOSER_MODE":"' + $mode + '"}}'
+    Write-Output $json
+} else {
+    Write-Output '{}'
+}
+exit 0