[model] support intern-VL 2.5-3 series (#7258)

* add internvl and rebase

* fix for internvl2&3

* remove lines

* fix video_inputs & lint

* nit

* add constants

* remove lines

* fix

* fix error

* pass ci

* pass ci

* skip internvl & nit

src/llamafactory/data/template.py

@@ -923,6 +923,20 @@ register_template(
 )
 
 
+register_template(
+    name="intern_vl",
+    format_user=StringFormatter(slots=["<|im_start|>user\n{{content}}<|im_end|>\n<|im_start|>assistant\n"]),
+    format_assistant=StringFormatter(slots=["{{content}}<|im_end|>\n"]),
+    format_system=StringFormatter(slots=["<|im_start|>system\n{{content}}<|im_end|>\n"]),
+    format_prefix=EmptyFormatter(slots=[{"bos_token"}]),
+    default_system=(
+        "你是书生·万象，英文名是InternVL，是由上海人工智能实验室、清华大学及多家合作单位联合开发的多模态大语言模型。"
+    ),
+    stop_words=["<|im_end|>"],
+    mm_plugin=get_mm_plugin(name="intern_vl", image_token="<image>", video_token="<video>"),
+)
+
+
 register_template(
     name="kimi_vl",
     format_user=StringFormatter(