renderers: add global flag for setting [img] tags (#12669)

Adds a temporary global flag to renderers that causes renderers to always
render images as [img]. In a follow up change, we will consider making this
the default, and this flag could eventually be removed

server/routes.go

@@ -39,6 +39,7 @@ import (
 	"github.com/ollama/ollama/logutil"
 	"github.com/ollama/ollama/middleware"
 	"github.com/ollama/ollama/model/parsers"
+	"github.com/ollama/ollama/model/renderers"
 	"github.com/ollama/ollama/server/internal/client/ollama"
 	"github.com/ollama/ollama/server/internal/registry"
 	"github.com/ollama/ollama/template"
@@ -91,6 +92,9 @@ func init() {
 	}
 
 	gin.SetMode(mode)
+
+	// Tell renderers to use [img] tags
+	renderers.RenderImgTags = true
 }
 
 var (