Issue #3: Addition of Initial Prompt

      SPRING_AI_OLLAMA_BASE_URL: http://ollama:11434

      SPRING_AI_OLLAMA_CHAT_MODEL:  gpt-oss:20b

      SPRING_AI_OLLAMA_CHAT_TEMPERATURE: 0.7

      SPRING_AI_CHAT_SYSTEM_PROMPT: "You are an OpenSlice AI assistant"

      # MCP Client Configuration

      SPRING_AI_MCP_CLIENT_TYPE: SYNC

package org.etsi.osl.mcp.backend;

import java.util.Map;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.ai.chat.client.ChatClient;

import org.springframework.ai.chat.client.advisor.SimpleLoggerAdvisor;

import org.springframework.ai.tool.ToolCallbackProvider;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Lazy;

import org.springframework.web.bind.annotation.*;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.web.bind.annotation.PostMapping;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class ChatController {

    private static final Logger log = LoggerFactory.getLogger(ChatController.class);

    private final ChatClient chatClient;

    private final String systemPrompt;

    public ChatController(ChatClient.Builder chatClientBuilder,

                           ToolCallbackProvider tools) {

                           ToolCallbackProvider tools,

                           @Value("${spring.ai.chat.system-prompt}") String systemPrompt) {

        // Validate that system prompt is not empty

        if (systemPrompt == null || systemPrompt.trim().isEmpty()) {

            throw new IllegalArgumentException("System prompt cannot be null or empty. Please configure SPRING_AI_CHAT_SYSTEM_PROMPT with a valid value.");

        }

        this.systemPrompt = systemPrompt;

        this.chatClient = chatClientBuilder

                .defaultAdvisors(new SimpleLoggerAdvisor())

                .defaultToolCallbacks(tools)

                .defaultSystem(systemPrompt)

                .build();

        log.info("ChatController initialized with system prompt: {}", systemPrompt);

    }

    @PostMapping("/ask")

        options:

          model: ${SPRING_AI_OLLAMA_CHAT_MODEL:gpt-oss:20b}

          temperature: ${SPRING_AI_OLLAMA_CHAT_TEMPERATURE:0.7}

    chat:

      system-prompt: ${SPRING_AI_CHAT_SYSTEM_PROMPT:You are an OpenSlice AI assistant.}

    mcp:

      client:

        type: ${SPRING_AI_MCP_CLIENT_TYPE:SYNC}  # or ASYNC