feat(models): add toggle to hide chat model selector

Expose a model-management setting to control chat-page model dropdown visibility, persist it in app settings, and apply it in chat UI rendering.

Co-authored-by: Cursor <cursoragent@cursor.com>

interfaces/admin/models_api.py

@@ -33,6 +33,16 @@ _LLM_MODE_OPTIONS = frozenset({"openai", "openai_responses", "anthropic", "googl
 _LLM_USER_CREATE_MODES = frozenset({"openai", "anthropic", "google", "ollama", "rule"})
 _OPS_AI_ACTIVE_KEY = "ops_ai_active_llm_profile_id"
 _OPS_AI_BINDINGS_KEY = "ops_ai_agent_profile_bindings"
+_CHAT_MODEL_SELECTOR_VISIBLE_KEY = "AIA_CHAT_MODEL_SELECTOR_VISIBLE"
+
+
+def _truthy(v: Any, *, default: bool = False) -> bool:
+    if v is None:
+        return bool(default)
+    s = str(v).strip().lower()
+    if not s:
+        return bool(default)
+    return s in {"1", "true", "yes", "on"}
 
 
 def _require_permission(ctx: dict[str, Any], permission: str) -> None:
@@ -188,6 +198,7 @@ def include_model_mgmt_routes(
             "role_ids": list(agent_role_ids()),
             "profile_secret": secret,
             "can_manage_llm_grants": _can_manage_llm_grants(ctx),
+            "chat_model_selector_visible": _truthy(store.get_setting(_CHAT_MODEL_SELECTOR_VISIBLE_KEY), default=True),
             # 便于核对「浏览器连的是哪台网关、网关读的是哪个库文件」
             "db_path": db_path(),
         }
@@ -294,6 +305,19 @@ def include_model_mgmt_routes(
         store.set_setting(_OPS_AI_BINDINGS_KEY, dump_agent_profile_bindings(cur))
         return {"ok": True, "ops_ai_bindings": cur}
 
+    @mg.post("/chat-ui")
+    def api_models_set_chat_ui(
+        payload: dict[str, Any] | None = Body(default=None),
+        authorization: str | None = Header(default=None),
+    ) -> dict[str, Any]:
+        payload = payload or {}
+        store = SqliteStore(db_path())
+        ctx = resolve_auth(store, authorization)
+        _require_permission(ctx, "admin:tenant:write")
+        visible = _truthy(payload.get("chat_model_selector_visible"), default=True)
+        store.set_setting(_CHAT_MODEL_SELECTOR_VISIBLE_KEY, "1" if visible else "0")
+        return {"ok": True, "chat_model_selector_visible": visible}
+
     @mg.post("/profiles")
     def api_models_create_profile(
         payload: dict[str, Any] | None = Body(default=None),

interfaces/admin/static/app.js

@@ -322,6 +322,8 @@ const I18N = {
     "models.sectionBindings": "智能体与模型绑定",
     "models.sectionNew": "新建模型配置",
     "models.sectionApi": "API 与密钥",
+    "models.chatModelSelector": "聊天页模型选择器",
+    "models.chatModelSelectorHint": "控制 Chat 页底部的模型下拉是否显示。",
     "models.sectionEval": "Agent Evaluation",
     "models.pickModel": "选用配置",
     "models.agentBindingHelp": "可为不同角色指定模型配置；留空则跟随上方全局选用。",
@@ -763,6 +765,8 @@ const I18N = {
     "models.sectionBindings": "Agent ↔ profile bindings",
     "models.sectionNew": "New profile",
     "models.sectionApi": "API & secret",
+    "models.chatModelSelector": "Chat model selector",
+    "models.chatModelSelectorHint": "Control whether the model dropdown is visible on the Chat page.",
     "models.sectionEval": "Agent Evaluation",
     "models.pickModel": "Profile",
     "models.agentBindingHelp": "Optional per-role profile; leave empty to use the global selection above.",
@@ -3460,6 +3464,7 @@ async function renderApiGrants() {
 async function renderModels() {
   const canPickActive = hasPermission("admin:read");
   const canConfigureBindings = canPickActive;
+  const canConfigureChatUi = hasPermission("admin:tenant:write");
   const status = el("div", { class: "muted", text: "" });
   const isAdminPool = String((authSession && authSession.username) || "").trim().toLowerCase() === "administrator";
   // 与后端 _require_models_mutate 对齐：administrator 写全局池需 tenant:write；普通用户写自己的配置只需 admin:read
@@ -3469,6 +3474,7 @@ async function renderModels() {
     text: isAdminPool && !canMutateProfiles ? t("models.readonly") : "",
   });
   const activeSelect = el("select", { class: "input", disabled: !canPickActive });
+  const chatModelSelectorVisibleCb = el("input", { type: "checkbox", disabled: !canConfigureChatUi });
   const bindingWrap = el("div", {});
   const opsAiSpecialistSelect = el("select", { class: "input", disabled: !canConfigureBindings });
   const opsAiProfileSelect = el("select", { class: "input", disabled: !canConfigureBindings });
@@ -3882,6 +3888,8 @@ async function renderModels() {
     const aid = String(state.active_llm_profile_id || "");
     if (profiles.some((p) => String(p.id) === aid)) activeSelect.value = aid;
     activeSelect.disabled = !canPickActive;
+    chatModelSelectorVisibleCb.disabled = !canConfigureChatUi;
+    chatModelSelectorVisibleCb.checked = state.chat_model_selector_visible !== false;
     opsAiSpecialistSelect.disabled = !canConfigureBindings;
     opsAiProfileSelect.disabled = !canConfigureBindings;
 
@@ -3963,6 +3971,17 @@ async function renderModels() {
       status.textContent = String(e.message || e);
     }
   });
+  chatModelSelectorVisibleCb.addEventListener("change", async () => {
+    if (!canConfigureChatUi) return;
+    try {
+      await apiPost("/admin/api/models/chat-ui", {
+        chat_model_selector_visible: !!chatModelSelectorVisibleCb.checked,
+      });
+      await refresh();
+    } catch (e) {
+      status.textContent = String(e.message || e);
+    }
+  });
   opsAiSpecialistSelect.addEventListener("change", async () => {
     paintOpsAiBindings();
   });
@@ -4206,6 +4225,8 @@ async function renderModels() {
     el("div", { class: "page-grid page-grid--two" }, [
       renderSectionCard(t("models.sectionActive"), "", [
         el("div", { class: "row" }, [el("label", { text: t("models.pickModel") }), activeSelect]),
+        el("div", { class: "row" }, [el("label", { text: t("models.chatModelSelector") }), chatModelSelectorVisibleCb]),
+        el("div", { class: "muted", text: t("models.chatModelSelectorHint") }),
       ], { id: "models-overview" }),
       renderSectionCard(t("models.sectionNew"), "", [
         el("div", { class: "row" }, [el("label", { text: t("models.profileName") }), newName]),

interfaces/admin/static/chat.js

@@ -2845,9 +2845,15 @@ async function renderChatUi() {
   };
   await loadSpecialistCatalog();
   const activeModelText = el("span", { class: "muted", text: `${t("chat.activeModelLabel")}: -` });
+  const applyModelSelectorVisibility = (modelsState) => {
+    const show = !(modelsState && modelsState.chat_model_selector_visible === false);
+    modelSelect.style.display = show ? "" : "none";
+    modelSelect.disabled = !show;
+  };
   const refreshActiveModelText = async () => {
     try {
       const ms = await apiGet("/admin/api/models");
+      applyModelSelectorVisibility(ms);
       const profiles = Array.isArray(ms.profiles) ? ms.profiles : [];
       const aid = String(ms.active_llm_profile_id || "");
       const p = profiles.find((x) => String(x.id || "") === aid) || null;
@@ -2883,6 +2889,7 @@ async function renderChatUi() {
         modelSelect.value = String(modelSelect.options[0].value || "");
       }
     } catch (_) {
+      applyModelSelectorVisibility(null);
       activeModelText.textContent = `${t("chat.activeModelLabel")}: -`;
       modelSelect.innerHTML = "";
       modelSelect.appendChild(el("option", { value: "", text: "-" }));