Implement AI analysis trigger endpoint and refactor related components

- Added a new endpoint to trigger on-demand agentic analysis for tenders via the AI service.
- Introduced `TriggerAIAnalyze` method in the `TenderHandler` to handle requests and responses for AI analysis.
- Updated the `tenderService` to include `TriggerAIAnalyze` method, which validates input and interacts with the AI summarizer client.
- Enhanced the `AIAnalyzeResponse` and `AIAnalyzeDocument` structures to support the new analysis feature.
- Refactored the `DocumentSummarizationWorker` and `TranslationWorker` to remove deprecated MinIO dependencies, streamlining the AI service interactions.

This update improves the functionality of the tender management system by allowing users to trigger AI analysis on-demand, enhancing the overall user experience and system capabilities.

internal/tender/handler.go

@@ -398,7 +398,7 @@ func (h *TenderHandler) GetPublicTenderDetails(c echo.Context) error {
 
 // GetDocumentSummaries retrieves document summaries for a tender
 // @Summary Get document summaries for a tender
-// @Description Retrieve AI-generated summaries of documents for a specific tender
+// @Description Retrieve per-document AI summaries from the AI service MinIO storage for a specific tender
 // @Tags Tenders
 // @Produce json
 // @Param id path string true "Tender ID"
@@ -595,6 +595,36 @@ func (h *TenderHandler) TriggerAISummarize(c echo.Context) error {
 	return response.Success(c, result, "AI summarization completed successfully")
 }
 
+// TriggerAIAnalyze triggers on-demand agentic analysis for a tender
+// @Summary Trigger AI analysis
+// @Description Trigger on-demand agentic document analysis for a tender via the external AI service
+// @Tags Admin-Tenders
+// @Produce json
+// @Param id path string true "Tender ID"
+// @Success 200 {object} response.APIResponse{data=AIAnalyzeResponse}
+// @Failure 400 {object} response.APIResponse
+// @Failure 404 {object} response.APIResponse
+// @Failure 500 {object} response.APIResponse
+// @Router /admin/v1/tenders/{id}/ai-analyze [post]
+// @Security BearerAuth
+func (h *TenderHandler) TriggerAIAnalyze(c echo.Context) error {
+	id := c.Param("id")
+	if id == "" {
+		return response.BadRequest(c, "Tender ID is required", "ID parameter cannot be empty")
+	}
+
+	result, err := h.service.TriggerAIAnalyze(c.Request().Context(), id)
+	if err != nil {
+		h.logger.Error("Failed to trigger AI analysis", map[string]interface{}{
+			"tender_id": id,
+			"error":     err.Error(),
+		})
+		return response.InternalServerError(c, err.Error())
+	}
+
+	return response.Success(c, result, "AI analysis completed successfully")
+}
+
 // TriggerAITranslate triggers on-demand AI translation for a tender
 // @Summary Trigger AI translation
 // @Description Trigger on-demand AI translation for tender title and description (cached in MinIO by the AI service)