fix(ollama): improve error handling and add timeouts

- Add timeouts (30s) and retries to resty client
- Add debug logging for Ollama requests and responses
- Import time package for timeout configuration
- This should fix 500 errors and provide better error messages

internal/providers/ollama.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"strings"
+	"time"
 
 	"gophergate/internal/config"
 	"gophergate/internal/models"
@@ -19,8 +20,14 @@ type OllamaProvider struct {
 }
 
 func NewOllamaProvider(cfg config.OllamaConfig) *OllamaProvider {
+	client := resty.New()
+	// Set reasonable timeouts for local Ollama server
+	client.SetTimeout(30 * time.Second)
+	client.SetRetryCount(2)
+	client.SetRetryWaitTime(1 * time.Second)
+	
 	return &OllamaProvider{
-		client: resty.New(),
+		client: client,
 		config: cfg,
 	}
 }
@@ -36,25 +43,33 @@ func (p *OllamaProvider) ChatCompletion(ctx context.Context, req *models.Unified
 	}
 
 	body := BuildOllamaBody(req, messagesJSON, false)
+	url := fmt.Sprintf("%s/chat/completions", p.config.BaseURL)
+
+	// Log request for debugging
+	fmt.Printf("[Ollama] Request to %s with model %s\n", url, req.Model)
 
 	resp, err := p.client.R().
 		SetContext(ctx).
 		SetBody(body).
-		Post(fmt.Sprintf("%s/chat/completions", p.config.BaseURL))
+		Post(url)
 
 	if err != nil {
+		fmt.Printf("[Ollama] Request error: %v\n", err)
 		return nil, fmt.Errorf("request failed: %w", err)
 	}
 
 	if !resp.IsSuccess() {
+		fmt.Printf("[Ollama] API error %d: %s\n", resp.StatusCode(), resp.String())
 		return nil, fmt.Errorf("Ollama API error (%d): %s", resp.StatusCode(), resp.String())
 	}
 
 	var respJSON map[string]interface{}
 	if err := json.Unmarshal(resp.Body(), &respJSON); err != nil {
+		fmt.Printf("[Ollama] Parse error: %v\n", err)
 		return nil, fmt.Errorf("failed to parse response: %w", err)
 	}
 
+	fmt.Printf("[Ollama] Success response for model %s\n", req.Model)
 	return ParseOllamaResponse(respJSON, req.Model)
 }