Merge pull request 'Release v0.7.1' (!10) from dev into main

Docker compatibility:
- Discovery endpoints now read from OLLAMA_URL, LLAMACPP_URL, LMSTUDIO_URL env vars
- docker-compose.yml sets backends to host.docker.internal for container access
- justfile updated with --host 0.0.0.0 for llama-server

Vision support:
- OpenAI adapter now converts images to content parts array format
- Enables vision models with llama.cpp and LM Studio

Bumps version to 0.7.1

backend/cmd/server/main.go

@@ -21,7 +21,7 @@ import (
 )
 
 // Version is set at build time via -ldflags, or defaults to dev
-var Version = "0.7.0"
+var Version = "0.7.1"
 
 func getEnvOrDefault(key, defaultValue string) string {
 	if value := os.Getenv(key); value != "" {

backend/internal/backends/openai/adapter.go

@@ -372,9 +372,44 @@ func (a *Adapter) convertChatRequest(req *backends.ChatRequest) map[string]inter
 	messages := make([]map[string]interface{}, len(req.Messages))
 	for i, msg := range req.Messages {
 		m := map[string]interface{}{
-			"role":    msg.Role,
-			"content": msg.Content,
+			"role": msg.Role,
 		}
+
+		// Handle messages with images (vision support)
+		if len(msg.Images) > 0 {
+			// Build content as array of parts for multimodal messages
+			contentParts := make([]map[string]interface{}, 0, len(msg.Images)+1)
+
+			// Add text part if content is not empty
+			if msg.Content != "" {
+				contentParts = append(contentParts, map[string]interface{}{
+					"type": "text",
+					"text": msg.Content,
+				})
+			}
+
+			// Add image parts
+			for _, img := range msg.Images {
+				// Images are expected as base64 data URLs or URLs
+				imageURL := img
+				if !strings.HasPrefix(img, "http://") && !strings.HasPrefix(img, "https://") && !strings.HasPrefix(img, "data:") {
+					// Assume base64 encoded image, default to JPEG
+					imageURL = "data:image/jpeg;base64," + img
+				}
+				contentParts = append(contentParts, map[string]interface{}{
+					"type": "image_url",
+					"image_url": map[string]interface{}{
+						"url": imageURL,
+					},
+				})
+			}
+
+			m["content"] = contentParts
+		} else {
+			// Plain text message
+			m["content"] = msg.Content
+		}
+
 		if msg.Name != "" {
 			m["name"] = msg.Name
 		}

backend/internal/backends/registry.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"os"
 	"sync"
 	"time"
 )
@@ -197,13 +198,25 @@ func probeEndpoint(ctx context.Context, endpoint DiscoveryEndpoint) DiscoveryRes
 	return result
 }
 
-// DefaultDiscoveryEndpoints returns the default endpoints to probe
+// getEnvOrDefault returns the environment variable value or a default
+func getEnvOrDefault(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}
+
+// DefaultDiscoveryEndpoints returns the default endpoints to probe.
+// URLs can be overridden via environment variables (useful for Docker).
 func DefaultDiscoveryEndpoints() []DiscoveryEndpoint {
+	ollamaURL := getEnvOrDefault("OLLAMA_URL", "http://localhost:11434")
+	llamacppURL := getEnvOrDefault("LLAMACPP_URL", "http://localhost:8081")
+	lmstudioURL := getEnvOrDefault("LMSTUDIO_URL", "http://localhost:1234")
+
 	return []DiscoveryEndpoint{
-		{Type: BackendTypeOllama, BaseURL: "http://localhost:11434"},
-		{Type: BackendTypeLlamaCpp, BaseURL: "http://localhost:8081"},
-		{Type: BackendTypeLlamaCpp, BaseURL: "http://localhost:8080"},
-		{Type: BackendTypeLMStudio, BaseURL: "http://localhost:1234"},
+		{Type: BackendTypeOllama, BaseURL: ollamaURL},
+		{Type: BackendTypeLlamaCpp, BaseURL: llamacppURL},
+		{Type: BackendTypeLMStudio, BaseURL: lmstudioURL},
 	}
 }
 

docker-compose.yml

@@ -26,6 +26,8 @@ services:
       - "9090:9090"
     environment:
       - OLLAMA_URL=http://host.docker.internal:11434
+      - LLAMACPP_URL=http://host.docker.internal:8081
+      - LMSTUDIO_URL=http://host.docker.internal:1234
       - PORT=9090
     extra_hosts:
       - "host.docker.internal:host-gateway"

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "vessel",
-  "version": "0.7.0",
+  "version": "0.7.1",
   "private": true,
   "type": "module",
   "scripts": {

justfile

@@ -64,13 +64,13 @@ dev-logs:
 models:
     @ls -lh {{models_dir}}/*.gguf 2>/dev/null || echo "No models found in {{models_dir}}"
 
-# Start llama.cpp server with a model
+# Start llama.cpp server with a model (--host 0.0.0.0 for Docker access)
 llama-server model:
-    llama-server -m {{models_dir}}/{{model}} --port {{llama_port}} -c 8192 -ngl 99
+    llama-server -m {{models_dir}}/{{model}} --host 0.0.0.0 --port {{llama_port}} -c 8192 -ngl 99
 
 # Start llama.cpp server with custom settings
 llama-server-custom model port ctx gpu:
-    llama-server -m {{models_dir}}/{{model}} --port {{port}} -c {{ctx}} -ngl {{gpu}}
+    llama-server -m {{models_dir}}/{{model}} --host 0.0.0.0 --port {{port}} -c {{ctx}} -ngl {{gpu}}
 
 # Start Docker dev + llama.cpp server
 all model: dev-detach