fix: 在 handler 中检查错误，不再静默丢弃

handlers/repos.go

@@ -43,6 +43,10 @@ func (h *ReposHandler) ListRepos(c *gin.Context) {
 			})
 		}
 	}
+	if err := rows.Err(); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
 	if repos == nil {
 		repos = []gin.H{}
 	}
@@ -61,9 +65,18 @@ func (h *ReposHandler) DeleteRepo(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
-	os.RemoveAll(localPath)
-	h.db.Exec(`DELETE FROM analyses WHERE repo_id = ?`, id)
-	h.db.Exec(`DELETE FROM repositories WHERE id = ?`, id)
+	if err := os.RemoveAll(localPath); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "remove repo dir: " + err.Error()})
+		return
+	}
+	if _, err := h.db.Exec(`DELETE FROM analyses WHERE repo_id = ?`, id); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "delete analyses: " + err.Error()})
+		return
+	}
+	if _, err := h.db.Exec(`DELETE FROM repositories WHERE id = ?`, id); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "delete repository: " + err.Error()})
+		return
+	}
 	c.JSON(http.StatusOK, gin.H{"ok": true})
 }
 
@@ -80,17 +93,33 @@ func (h *ReposHandler) CleanupRepos(c *gin.Context) {
 	}
 	defer rows.Close()
 	var cleaned []int64
+	var errs []string
 	for rows.Next() {
 		var id int64
 		var localPath string
 		if rows.Scan(&id, &localPath) == nil {
-			os.RemoveAll(localPath)
-			h.db.Exec(`DELETE FROM analyses WHERE repo_id = ?`, id)
-			h.db.Exec(`DELETE FROM repositories WHERE id = ?`, id)
+			if err := os.RemoveAll(localPath); err != nil {
+				errs = append(errs, fmt.Sprintf("remove %d: %s", id, err.Error()))
+				continue
+			}
+			if _, err := h.db.Exec(`DELETE FROM analyses WHERE repo_id = ?`, id); err != nil {
+				errs = append(errs, fmt.Sprintf("delete analyses %d: %s", id, err.Error()))
+			}
+			if _, err := h.db.Exec(`DELETE FROM repositories WHERE id = ?`, id); err != nil {
+				errs = append(errs, fmt.Sprintf("delete repo %d: %s", id, err.Error()))
+			}
 			cleaned = append(cleaned, id)
 		}
 	}
-	c.JSON(http.StatusOK, gin.H{"cleaned": cleaned})
+	if err := rows.Err(); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	result := gin.H{"cleaned": cleaned}
+	if len(errs) > 0 {
+		result["errors"] = errs
+	}
+	c.JSON(http.StatusOK, result)
 }
 
 // CloneRepo handles POST /api/repos with SSE progress events.
@@ -119,7 +148,10 @@ func (h *ReposHandler) CloneRepo(c *gin.Context) {
 	}
 
 	sendEvent := func(event string, data interface{}) {
-		jsonData, _ := json.Marshal(data)
+		jsonData, err := json.Marshal(data)
+		if err != nil {
+			jsonData = []byte(`{"error":"failed to marshal event data"}`)
+		}
 		fmt.Fprintf(c.Writer, "event: %s\ndata: %s\n\n", event, jsonData)
 		flusher.Flush()
 	}
@@ -155,7 +187,11 @@ func (h *ReposHandler) CloneRepo(c *gin.Context) {
 		sendEvent("error", map[string]interface{}{"message": "save to db: " + err.Error()})
 		return
 	}
-	repoID, _ := res.LastInsertId()
+	repoID, err := res.LastInsertId()
+	if err != nil {
+		sendEvent("error", map[string]interface{}{"message": "get repo id: " + err.Error()})
+		return
+	}
 
 	sendEvent("complete", map[string]interface{}{
 		"repo_id":    repoID,