feat(files): enhance file handling with support for HTTP uploads and direct binary access

internal/mcpserver/server.go

@@ -127,6 +127,12 @@ func New(cfg config.MCPConfig, toolSet ToolSet) http.Handler {
 		Description: "Retrieve explicit links and semantic neighbors for a thought.",
 	}, toolSet.Links.Related)
 
+	server.AddResourceTemplate(&mcp.ResourceTemplate{
+		Name:        "stored_file",
+		URITemplate: "amcs://files/{id}",
+		Description: "A stored file. Read a file's raw binary content by its id. Use load_file for metadata.",
+	}, toolSet.Files.ReadResource)
+
 	addTool(server, &mcp.Tool{
 		Name:        "save_file",
 		Description: "Store a base64-encoded file such as an image, document, or audio clip, optionally linking it to a thought.",