diff --git a/cmd/server/main.go b/cmd/server/main.go
index 6d6c84cd..a9af038e 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -48,8 +48,10 @@ func (m *LogFormatter) Format(entry *log.Entry) ([]byte, error) {
 
 	timestamp := entry.Time.Format("2006-01-02 15:04:05")
 	var newLog string
+	// Ensure message doesn't carry trailing newlines; formatter appends one.
+	msg := strings.TrimRight(entry.Message, "\r\n")
 	// Customize the log format to include timestamp, level, caller file/line, and message.
-	newLog = fmt.Sprintf("[%s] [%s] [%s:%d] %s\n", timestamp, entry.Level, filepath.Base(entry.Caller.File), entry.Caller.Line, entry.Message)
+	newLog = fmt.Sprintf("[%s] [%s] [%s:%d] %s\n", timestamp, entry.Level, filepath.Base(entry.Caller.File), entry.Caller.Line, msg)
 
 	b.WriteString(newLog)
 	return b.Bytes(), nil
@@ -84,6 +86,10 @@ func init() {
 	ginErrorWriter = log.StandardLogger().WriterLevel(log.ErrorLevel)
 	gin.DefaultErrorWriter = ginErrorWriter
 	gin.DebugPrintFunc = func(format string, values ...interface{}) {
+		// Trim trailing newlines from Gin's formatted messages to avoid blank lines.
+		// Gin's debug prints usually include a trailing "\n"; our formatter also appends one.
+		// Removing it here ensures a single newline per entry.
+		format = strings.TrimRight(format, "\r\n")
 		log.StandardLogger().Infof(format, values...)
 	}
 	log.RegisterExitHandler(func() {
diff --git a/internal/runtime/executor/gemini_web_state.go b/internal/runtime/executor/gemini_web_state.go
index 11514f6c..5ce4770e 100644
--- a/internal/runtime/executor/gemini_web_state.go
+++ b/internal/runtime/executor/gemini_web_state.go
@@ -412,6 +412,25 @@ func (s *geminiWebState) send(ctx context.Context, modelName string, reqPayload
 		return nil, s.wrapSendError(err), nil
 	}
 
+	// Hook: For gemini-2.5-flash-image-preview, if the API returns only images without any text,
+	// inject a small textual summary so that conversation persistence has non-empty assistant text.
+	// This helps conversation recovery (conv store) to match sessions reliably.
+	if strings.EqualFold(modelName, "gemini-2.5-flash-image-preview") {
+		if len(output.Candidates) > 0 {
+			c := output.Candidates[output.Chosen]
+			hasNoText := strings.TrimSpace(c.Text) == ""
+			hasImages := len(c.GeneratedImages) > 0 || len(c.WebImages) > 0
+			if hasNoText && hasImages {
+				// Build a stable, concise fallback text. Avoid dynamic details to keep hashes stable.
+				// Prefer a deterministic phrase with count to aid users while keeping consistency.
+				fallback := "Done"
+				// Mutate the chosen candidate's text so both response conversion and
+				// conversation persistence observe the same fallback.
+				output.Candidates[output.Chosen].Text = fallback
+			}
+		}
+	}
+
 	gemBytes, err := geminiwebapi.ConvertOutputToGemini(&output, modelName, prep.prompt)
 	if err != nil {
 		return nil, &interfaces.ErrorMessage{StatusCode: 500, Error: err}, nil
diff --git a/internal/watcher/watcher.go b/internal/watcher/watcher.go
index 905d1908..7d1f43fd 100644
--- a/internal/watcher/watcher.go
+++ b/internal/watcher/watcher.go
@@ -26,7 +26,7 @@ import (
 	// "github.com/router-for-me/CLIProxyAPI/v6/internal/client"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
 	// "github.com/router-for-me/CLIProxyAPI/v6/internal/interfaces"
-	"github.com/router-for-me/CLIProxyAPI/v6/internal/misc"
+
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
 	coreauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	log "github.com/sirupsen/logrus"
@@ -807,7 +807,6 @@ func (w *Watcher) loadFileClients(cfg *config.Config) int {
 		}
 		if !info.IsDir() && strings.HasSuffix(strings.ToLower(info.Name()), ".json") {
 			authFileCount++
-			misc.LogCredentialSeparator()
 			log.Debugf("processing auth file %d: %s", authFileCount, filepath.Base(path))
 			// Count readable JSON files as successful auth entries
 			if data, errCreate := util.ReadAuthFileWithRetry(path, authFileReadMaxAttempts, authFileReadRetryDelay); errCreate == nil && len(data) > 0 {