fix: 修复macOS构建

Author: fy0

utils/ai_assistant2/log_watcher/ctime_darwin.go

@@ -0,0 +1,29 @@
+//go:build darwin
+
+package log_watcher
+
+import (
+	"os"
+	"syscall"
+	"time"
+)
+
+// getWindowsCreationTime on macOS returns the file's birth time (true creation time)
+func getWindowsCreationTime(path string, info os.FileInfo) time.Time {
+	if info == nil {
+		return time.Time{}
+	}
+
+	sys := info.Sys()
+	if sys == nil {
+		return info.ModTime()
+	}
+
+	stat, ok := sys.(*syscall.Stat_t)
+	if !ok {
+		return info.ModTime()
+	}
+
+	// macOS supports Birthtimespec which is the true file creation time
+	return time.Unix(stat.Birthtimespec.Sec, stat.Birthtimespec.Nsec)
+}

utils/ai_assistant2/log_watcher/ctime_unix.go

@@ -1,4 +1,4 @@
-//go:build !windows
+//go:build linux
 
 package log_watcher
 
@@ -8,8 +8,7 @@ import (
 	"time"
 )
 
-// getWindowsCreationTime on non-Windows systems returns the best available creation time
-// On Linux/macOS, this uses ctime (status change time) as a proxy for creation time
+// getWindowsCreationTime on Linux returns ctime (status change time) as a proxy for creation time
 func getWindowsCreationTime(path string, info os.FileInfo) time.Time {
 	if info == nil {
 		return time.Time{}
@@ -25,10 +24,6 @@ func getWindowsCreationTime(path string, info os.FileInfo) time.Time {
 		return info.ModTime()
 	}
 
-	// Try to get birth time (creation time) on systems that support it
-	// On macOS (darwin), Birthtimespec contains the creation time
-	// On Linux, we fall back to ctime
-
 	// Use ctime (status change time) as a proxy
 	// Note: ctime is updated when file metadata changes, not true creation time
 	return time.Unix(stat.Ctim.Sec, stat.Ctim.Nsec)