feat: implement RAG chatbot service, background cron worker, and asynchronous indexing infrastructure

internal/controllers/chatbotController.go

@@ -49,7 +49,6 @@ func (cx *ChatbotController) Chat(c fiber.Ctx) error {
 
 	answer, err := cx.chatbotService.Chat(ctx, claims.UId, dto.ProjectID, dto.Question)
 	if err != nil {
-		// Trả về lỗi 429 (Too Many Requests) nếu hết lượt dùng
 		if err.Error() == "you have reached your daily limit of 10 questions. Please come back tomorrow" {
 			return c.Status(fiber.StatusTooManyRequests).JSON(response.CommonResponse{
 				Status:  false,

internal/repositories/rasterTileRepository.go

@@ -61,7 +61,6 @@ func (r *rasterTileRepository) GetTile(ctx context.Context, z, x, y int) ([]byte
 		return nil, "", fmt.Errorf("invalid tile coordinates")
 	}
 
-	// cache key
 	cacheId := fmt.Sprintf("rasterTile:%d:%d:%d", z, x, y)
 
 	var cached []byte

internal/repositories/statisticRepo.go

@@ -224,7 +224,6 @@ func (r *statisticRepository) Upsert(ctx context.Context, date time.Time) (*mode
 
 	entity := mapToEntity(row)
 
-	// Clear search cache and the specific date cache
 	go func() {
 		bgCtx := context.Background()
 		_ = r.c.DelByPattern(bgCtx, "statistic:search*")

internal/repositories/tileRepository.go

@@ -61,7 +61,6 @@ func (r *tileRepository) GetTile(ctx context.Context, z, x, y int) ([]byte, stri
 		return nil, "", false, fmt.Errorf("invalid tile coordinates")
 	}
 
-	// cache key
 	cacheId := fmt.Sprintf("tile:%d:%d:%d", z, x, y)
 
 	var cached []byte

internal/services/chatbotService.go

@@ -78,8 +78,6 @@ Question: %s`, contextStr, question)
 	if err != nil {
 		return "", err
 	}
-
-	// 3. Tăng số lần sử dụng sau khi gọi AI thành công
 	_, _ = s.usageRepo.IncrementAIUsage(ctx, userID)
 
 	return response, nil