diff --git a/distribution/linux/euler-copilot-shell.spec b/distribution/linux/euler-copilot-shell.spec
index 49801d54674c66ce8ee5c83f1bebb2a40e09f372..b0a27fc1d5db6540d2ffc758b88e607ae22f8bc3 100644
--- a/distribution/linux/euler-copilot-shell.spec
+++ b/distribution/linux/euler-copilot-shell.spec
@@ -4,7 +4,7 @@
 
 Name:           euler-copilot-shell
 Version:        0.10.2
-Release:        1%{?dist}
+Release:        1%{?dev_timestamp:.dev%{dev_timestamp}}%{?dist}
 Summary:        openEuler Intelligence 智能命令行工具集
 License:        MulanPSL-2.0
 URL:            https://gitee.com/openeuler/euler-copilot-shell
diff --git a/scripts/build/build_rpm.sh b/scripts/build/build_rpm.sh
index 951e0dfb9e3e9881b81892bed506f0b201cbf3a1..f52c8b300a85b0f9bf8179b84918e9c68d72d265 100755
--- a/scripts/build/build_rpm.sh
+++ b/scripts/build/build_rpm.sh
@@ -2,12 +2,32 @@
 # build_rpm.sh: build RPM package using the tarball created by create_tarball.sh
 set -euo pipefail
 
+# Parse arguments
+DEV_MODE=0
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+    --dev)
+        DEV_MODE=1
+        shift
+        ;;
+    *)
+        echo "Unknown parameter: $1" >&2
+        echo "Usage: $0 [--dev]" >&2
+        exit 1
+        ;;
+    esac
+done
+
 # Determine script directory and repo root
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
 
 # Create the tarball and set BUILD_DIR and TARBALL
-eval "$("${SCRIPT_DIR}"/create_tarball.sh)"
+if [[ ${DEV_MODE} -eq 1 ]]; then
+    eval "$("${SCRIPT_DIR}"/create_tarball.sh --dev)"
+else
+    eval "$("${SCRIPT_DIR}"/create_tarball.sh)"
+fi
 set +u
 if [[ -z "${BUILD_DIR:-}" || -z "${TARBALL:-}" ]]; then
     echo "Error: BUILD_DIR 或 TARBALL 变量未设置，create_tarball.sh 执行失败。" >&2
@@ -27,7 +47,12 @@ cp "${SPEC_FILE}" "${BUILD_DIR}/SPECS/"
 
 # Build the RPMs
 echo "Building RPM using topdir ${BUILD_DIR}"
-rpmbuild --define "_topdir ${BUILD_DIR}" -ba "${BUILD_DIR}/SPECS/$(basename "${SPEC_FILE}")"
+if [[ ${DEV_MODE} -eq 1 ]]; then
+    # 在 dev 模式下，传递时间戳给 rpmbuild
+    rpmbuild --define "_topdir ${BUILD_DIR}" --define "dev_timestamp ${TIMESTAMP}" -ba "${BUILD_DIR}/SPECS/$(basename "${SPEC_FILE}")"
+else
+    rpmbuild --define "_topdir ${BUILD_DIR}" -ba "${BUILD_DIR}/SPECS/$(basename "${SPEC_FILE}")"
+fi
 
 # Output locations
 echo "RPM build complete."
diff --git a/scripts/build/create_tarball.sh b/scripts/build/create_tarball.sh
index baeb4989d493a3590f67985130a2692777808bc5..711e65e50fa99afb9087df66b5f8c0551d9b5785 100755
--- a/scripts/build/create_tarball.sh
+++ b/scripts/build/create_tarball.sh
@@ -2,6 +2,22 @@
 # create_tarball.sh: create a tarball of current repo for RPM build.
 set -euo pipefail
 
+# Parse arguments
+DEV_MODE=0
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+    --dev)
+        DEV_MODE=1
+        shift
+        ;;
+    *)
+        echo "Unknown parameter: $1" >&2
+        echo "Usage: $0 [--dev]" >&2
+        exit 1
+        ;;
+    esac
+done
+
 # Locate spec file relative to repo root
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
@@ -11,6 +27,11 @@ SPEC_FILE="${REPO_ROOT}/distribution/linux/euler-copilot-shell.spec"
 NAME=$(grep -E '^Name:' "$SPEC_FILE" | awk '{print $2}')
 VERSION=$(grep -E '^Version:' "$SPEC_FILE" | awk '{print $2}')
 
+# 如果是 dev 模式，添加时间戳
+if [[ ${DEV_MODE} -eq 1 ]]; then
+    TIMESTAMP=$(date +%Y%m%d%H%M%S)
+fi
+
 # Create build directory in repo
 BUILD_DIR="${REPO_ROOT}/build"
 mkdir -p "${BUILD_DIR}"
@@ -23,3 +44,6 @@ git archive --format=tar.gz --prefix="${NAME}-${VERSION}/" -o "${BUILD_DIR}/${TA
 # 输出变量用于 build_rpm.sh 的 eval
 echo "BUILD_DIR=${BUILD_DIR}"
 echo "TARBALL=${TARBALL}"
+if [[ ${DEV_MODE} -eq 1 ]]; then
+    echo "TIMESTAMP=${TIMESTAMP}"
+fi
diff --git a/src/app/tui.py b/src/app/tui.py
index c8f4532b6331155af716766d4fe19dac56b32c31..292662c9ff5501f2d55cbc7d03c5196c4fd8efb5 100644
--- a/src/app/tui.py
+++ b/src/app/tui.py
@@ -1380,11 +1380,9 @@ class IntelligentTerminal(App):
         # 启动监控任务
         monitor_task = asyncio.create_task(monitor_screen_stack())
 
-        # 等待退出事件或超时（5分钟）
+        # 等待退出事件
         try:
-            await asyncio.wait_for(exit_event.wait(), timeout=300.0)
-        except TimeoutError:
-            self.logger.warning("等待设置页面退出超时")
+            await exit_event.wait()
         finally:
             # 取消监控任务
             if not monitor_task.done():
diff --git a/src/i18n/locales/en_US/LC_MESSAGES/messages.po b/src/i18n/locales/en_US/LC_MESSAGES/messages.po
index 9502e02172b4cc0f264987f19844c551e04ff1b4..8e5ecdf708c6a62c5869239e4ed18bf90a6769f5 100644
--- a/src/i18n/locales/en_US/LC_MESSAGES/messages.po
+++ b/src/i18n/locales/en_US/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: oi-cli\n"
 "Report-Msgid-Bugs-To: contact@openeuler.org\n"
-"POT-Creation-Date: 2025-10-21 10:23+0800\n"
+"POT-Creation-Date: 2025-10-21 10:54+0800\n"
 "PO-Revision-Date: 2025-10-20 19:28+0800\n"
 "Last-Translator: openEuler Intelligence Team\n"
 "Language-Team: English\n"
@@ -154,7 +154,7 @@ msgstr "Toggle Focus"
 
 #: src/app/tui.py:255
 #, python-brace-format
-msgid "Intelligent CLI Tool {version}"
+msgid "Intelligent CLI Assistant {version}"
 msgstr "Command Line Tool {version}"
 
 #: src/app/tui.py:371
@@ -266,7 +266,8 @@ msgstr "Press any key to close"
 
 #: src/app/dialogs/agent.py:60 src/app/dialogs/agent.py:130
 #: src/app/dialogs/agent.py:185 src/app/dialogs/agent.py:205
-#: src/app/dialogs/agent.py:208
+#: src/app/dialogs/agent.py:208 src/tool/oi_select_agent.py:67
+#: src/tool/oi_select_agent.py:94
 msgid "智能问答"
 msgstr "Smart Chat"
 
@@ -474,3 +475,322 @@ msgstr "✗ Unsupported language: {locale}\n"
 #: src/main.py:228
 msgid "Fatal error in Intelligent Shell application"
 msgstr "Fatal error in Intelligent Shell application"
+
+#: src/tool/oi_select_agent.py:29
+msgid "退出"
+msgstr "Exit"
+
+#: src/tool/oi_select_agent.py:123
+#, python-brace-format
+msgid "✓ 默认智能体已设置为: {name}\n"
+msgstr "✓ Default agent set to: {name}\n"
+
+#: src/tool/oi_select_agent.py:125
+#, python-brace-format
+msgid "  App ID: {app_id}\n"
+msgstr "  App ID: {app_id}\n"
+
+#: src/tool/oi_select_agent.py:127
+msgid "  已设置为智能问答模式（无智能体）\n"
+msgstr "  Set to Smart Q&A mode (no agent)\n"
+
+#: src/tool/oi_select_agent.py:129
+msgid "已取消选择\n"
+msgstr "Selection cancelled\n"
+
+#: src/tool/oi_select_agent.py:143
+msgid "错误: 智能体功能需要使用 openEuler Intelligence 后端\n"
+msgstr "Error: Agent functionality requires openEuler Intelligence backend\n"
+
+#: src/tool/oi_select_agent.py:144
+msgid "请先运行以下命令切换后端：\n"
+msgstr "Please run the following command to switch backend:\n"
+
+#: src/tool/oi_select_agent.py:145
+msgid ""
+"  oi  # 然后按下 Ctrl+S 进入设置界面切换到 openEuler Intelligence 后端\n"
+msgstr ""
+"  oi  # Then press Ctrl+S to enter settings and switch to openEuler "
+"Intelligence backend\n"
+
+#: src/tool/oi_select_agent.py:163
+#, python-brace-format
+msgid "错误: {error}\n"
+msgstr "Error: {error}\n"
+
+#: src/tool/oi_llm_config.py:77
+msgid "需要管理员权限才能修改 openEuler Intelligence 配置文件"
+msgstr "Administrator privileges are required to modify openEuler Intelligence configuration files"
+
+#: src/tool/oi_llm_config.py:84
+#, python-brace-format
+msgid "配置文件不存在: {path}"
+msgstr "Configuration file does not exist: {path}"
+
+#: src/tool/oi_llm_config.py:85
+msgid "请先运行 '(sudo) oi --init' 部署后端服务"
+msgstr "Please run '(sudo) oi --init' first to deploy backend services"
+
+#: src/tool/oi_llm_config.py:89 src/tool/oi_llm_config.py:93
+#, python-brace-format
+msgid "配置文件不可写: {path}"
+msgstr "Configuration file is not writable: {path}"
+
+#: src/tool/oi_llm_config.py:96
+#, python-brace-format
+msgid "访问配置文件时权限不足: {error}"
+msgstr "Insufficient permissions when accessing configuration file: {error}"
+
+#: src/tool/oi_llm_config.py:98
+#, python-brace-format
+msgid "访问配置文件时发生错误: {error}"
+msgstr "Error occurred when accessing configuration file: {error}"
+
+#: src/tool/oi_llm_config.py:127
+#, python-brace-format
+msgid "权限不足：无法访问配置文件 {filename}，请以管理员身份运行"
+msgstr "Insufficient permissions: Cannot access configuration file {filename}, please run as administrator"
+
+#: src/tool/validators.py:135 src/tool/validators.py:584
+#: src/tool/validators.py:647
+#, python-brace-format
+msgid "连接超时 - 无法在 {timeout} 秒内连接到 {endpoint}"
+msgstr "Connection timeout - Unable to connect to {endpoint} within {timeout} seconds"
+
+#: src/tool/validators.py:140
+#, python-brace-format
+msgid "LLM 配置验证失败: {error}"
+msgstr "LLM configuration validation failed: {error}"
+
+#: src/tool/validators.py:144
+msgid "LLM 配置验证成功"
+msgstr "LLM configuration validation successful"
+
+#: src/tool/validators.py:146
+#, python-brace-format
+msgid " - 支持工具调用，类型: {func_type}"
+msgstr " - Tool calling supported, type: {func_type}"
+
+#: src/tool/validators.py:148
+msgid " - 不支持工具调用"
+msgstr " - Tool calling not supported"
+
+#: src/tool/validators.py:201
+msgid "无法连接到 Embedding 模型服务。"
+msgstr "Unable to connect to Embedding model service."
+
+#: src/tool/validators.py:241
+msgid "基本对话测试失败"
+msgstr "Basic chat test failed"
+
+#: src/tool/validators.py:244
+msgid "基本对话功能正常"
+msgstr "Basic chat functionality is working"
+
+#: src/tool/validators.py:246
+msgid "对话响应为空"
+msgstr "Chat response is empty"
+
+#: src/tool/validators.py:318
+msgid "不支持任何 function_call 格式"
+msgstr "No function_call format is supported"
+
+#: src/tool/validators.py:353
+#, python-brace-format
+msgid "tools 格式测试失败: {error}"
+msgstr "tools format test failed: {error}"
+
+#: src/tool/validators.py:358
+msgid "支持 tools 格式的 function_call"
+msgstr "tools format function_call is supported"
+
+#: src/tool/validators.py:360
+msgid "不支持工具调用功能"
+msgstr "Tool calling functionality is not supported"
+
+#: src/tool/validators.py:401
+#, python-brace-format
+msgid "structured_output 格式测试失败: {error}"
+msgstr "structured_output format test failed: {error}"
+
+#: src/tool/validators.py:409
+msgid "structured_output 响应不是有效 JSON"
+msgstr "structured_output response is not valid JSON"
+
+#: src/tool/validators.py:411
+msgid "支持 structured_output 格式"
+msgstr "structured_output format is supported"
+
+#: src/tool/validators.py:413
+msgid "structured_output 响应为空"
+msgstr "structured_output response is empty"
+
+#: src/tool/validators.py:439
+#, python-brace-format
+msgid "json_mode 格式测试失败: {error}"
+msgstr "json_mode format test failed: {error}"
+
+#: src/tool/validators.py:447
+msgid "json_mode 响应不是有效 JSON"
+msgstr "json_mode response is not valid JSON"
+
+#: src/tool/validators.py:449
+msgid "支持 json_mode 格式"
+msgstr "json_mode format is supported"
+
+#: src/tool/validators.py:451
+msgid "json_mode 响应为空"
+msgstr "json_mode response is empty"
+
+#: src/tool/validators.py:499
+msgid "支持 vLLM 结构化输出（部分支持）"
+msgstr "vLLM structured output is supported (partial support)"
+
+#: src/tool/validators.py:504
+#, python-brace-format
+msgid "不支持 vLLM guided_json 格式: {error}"
+msgstr "vLLM guided_json format is not supported: {error}"
+
+#: src/tool/validators.py:508
+msgid "vLLM guided_json 响应无效"
+msgstr "vLLM guided_json response is invalid"
+
+#: src/tool/validators.py:555
+msgid "支持 Ollama function_call 格式"
+msgstr "Ollama function_call format is supported"
+
+#: src/tool/validators.py:558
+#, python-brace-format
+msgid "不支持 Ollama function_call 格式: {error}"
+msgstr "Ollama function_call format is not supported: {error}"
+
+#: src/tool/validators.py:561
+msgid "Ollama function_call 响应无效"
+msgstr "Ollama function_call response is invalid"
+
+#: src/tool/validators.py:589
+#, python-brace-format
+msgid "OpenAI Embedding 配置验证失败: {error}"
+msgstr "OpenAI Embedding configuration validation failed: {error}"
+
+#: src/tool/validators.py:598
+#, python-brace-format
+msgid "OpenAI Embedding 配置验证成功 - 维度: {dimension}"
+msgstr "OpenAI Embedding configuration validation successful - Dimension: {dimension}"
+
+#: src/tool/validators.py:606
+msgid "OpenAI Embedding 响应为空"
+msgstr "OpenAI Embedding response is empty"
+
+#: src/tool/validators.py:634
+#, python-brace-format
+msgid "MindIE Embedding 配置验证成功 - 维度: {dimension}"
+msgstr "MindIE Embedding configuration validation successful - Dimension: {dimension}"
+
+#: src/tool/validators.py:644
+msgid "MindIE Embedding 响应格式不正确"
+msgstr "MindIE Embedding response format is incorrect"
+
+#: src/tool/validators.py:652
+#, python-brace-format
+msgid "MindIE Embedding 配置验证失败: {error}"
+msgstr "MindIE Embedding configuration validation failed: {error}"
+
+#: src/tool/validators.py:674
+msgid "服务 URL 必须以 http:// 或 https:// 开头"
+msgstr "Service URL must start with http:// or https://"
+
+#: src/tool/validators.py:685
+msgid "访问令牌格式无效"
+msgstr "Access token format is invalid"
+
+#: src/tool/validators.py:710
+msgid "服务返回的数据格式不正确"
+msgstr "Service returned data in incorrect format"
+
+#: src/tool/validators.py:716
+msgid "连接成功"
+msgstr "Connection successful"
+
+#: src/tool/validators.py:718
+#, python-brace-format
+msgid "服务返回错误代码: {code}"
+msgstr "Service returned error code: {code}"
+
+#: src/tool/validators.py:721
+msgid "无法连接到服务，请检查 URL 和网络连接"
+msgstr "Unable to connect to service, please check URL and network connection"
+
+#: src/tool/validators.py:723
+msgid "连接超时，请检查网络连接或服务状态"
+msgstr "Connection timeout, please check network connection or service status"
+
+#: src/tool/validators.py:726
+#, python-brace-format
+msgid "连接验证失败: {error}"
+msgstr "Connection validation failed: {error}"
+
+#: src/tool/validators.py:732
+msgid "访问令牌无效或已过期"
+msgstr "Access token is invalid or expired"
+
+#: src/tool/validators.py:733
+msgid "访问权限不足"
+msgstr "Insufficient access permissions"
+
+#: src/tool/validators.py:734
+msgid "API 接口不存在，请检查服务版本"
+msgstr "API interface does not exist, please check service version"
+
+#: src/tool/validators.py:737
+#, python-brace-format
+msgid "服务响应异常，状态码: {status_code}"
+msgstr "Service response error, status code: {status_code}"
+
+#: src/tool/command_processor.py:56
+msgid "请输入有效命令或问题。"
+msgstr "Please enter a valid command or question."
+
+#: src/tool/command_processor.py:75
+msgid "检测到不安全命令，已阻止执行。"
+msgstr "Unsafe command detected, execution blocked."
+
+#: src/tool/command_processor.py:135
+msgid "[命令启动失败] 无法创建子进程"
+msgstr "[Command start failed] Unable to create subprocess"
+
+#: src/tool/command_processor.py:136
+#, python-brace-format
+msgid "无法启动命令 '{command}'，请分析可能原因并给出解决建议。"
+msgstr "Unable to start command '{command}', please analyze possible causes and provide solutions."
+
+#: src/tool/command_processor.py:165
+#, python-brace-format
+msgid ""
+"\n"
+"[命令完成] 退出码: {returncode}"
+msgstr ""
+"\n"
+"[Command completed] Exit code: {returncode}"
+
+#: src/tool/command_processor.py:183
+#, python-brace-format
+msgid "[命令失败] 退出码: {returncode}"
+msgstr "[Command failed] Exit code: {returncode}"
+
+#: src/tool/command_processor.py:188
+#, python-brace-format
+msgid ""
+"命令 '{command}' 以非零状态 {returncode} 退出。\n"
+"标准错误输出如下：\n"
+"{stderr_text}\n"
+"请分析原因并提供解决建议。"
+msgstr ""
+"Command '{command}' exited with non-zero status {returncode}.\n"
+"Standard error output:\n"
+"{stderr_text}\n"
+"Please analyze the cause and provide solutions."
+
+#: src/tool/command_processor.py:206
+msgid "读取 stderr 失败"
+msgstr "Failed to read stderr"
diff --git a/src/i18n/locales/zh_CN/LC_MESSAGES/messages.po b/src/i18n/locales/zh_CN/LC_MESSAGES/messages.po
index ed9d1471cd93ce4bc698dc2dec8908d5bc1f858a..c0926a41829e5e31f074479285352f96dc871228 100644
--- a/src/i18n/locales/zh_CN/LC_MESSAGES/messages.po
+++ b/src/i18n/locales/zh_CN/LC_MESSAGES/messages.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: oi-cli\n"
 "Report-Msgid-Bugs-To: contact@openeuler.org\n"
-"POT-Creation-Date: 2025-10-21 10:23+0800\n"
+"POT-Creation-Date: 2025-10-21 10:54+0800\n"
 "PO-Revision-Date: 2025-10-21 09:40+0800\n"
 "Last-Translator: openEuler Intelligence Team\n"
 "Language-Team: Chinese (Simplified)\n"
@@ -154,8 +154,8 @@ msgstr "切换焦点"
 
 #: src/app/tui.py:255
 #, python-brace-format
-msgid "Intelligent CLI Tool {version}"
-msgstr "智能命令行工具 {version}"
+msgid "Intelligent CLI Assistant {version}"
+msgstr "智能命令行助手 {version}"
 
 #: src/app/tui.py:371
 msgid "[Cancelled]"
@@ -265,7 +265,8 @@ msgstr "按任意键关闭"
 
 #: src/app/dialogs/agent.py:60 src/app/dialogs/agent.py:130
 #: src/app/dialogs/agent.py:185 src/app/dialogs/agent.py:205
-#: src/app/dialogs/agent.py:208
+#: src/app/dialogs/agent.py:208 src/tool/oi_select_agent.py:67
+#: src/tool/oi_select_agent.py:94
 msgid "智能问答"
 msgstr "智能问答"
 
@@ -469,3 +470,321 @@ msgstr "✗ 不支持的语言: {locale}\n"
 #: src/main.py:228
 msgid "Fatal error in Intelligent Shell application"
 msgstr "智能 Shell 应用发生致命错误"
+
+#: src/tool/oi_select_agent.py:29
+msgid "退出"
+msgstr "退出"
+
+#: src/tool/oi_select_agent.py:123
+#, python-brace-format
+msgid "✓ 默认智能体已设置为: {name}\n"
+msgstr "✓ 默认智能体已设置为: {name}\n"
+
+#: src/tool/oi_select_agent.py:125
+#, python-brace-format
+msgid "  App ID: {app_id}\n"
+msgstr "  App ID: {app_id}\n"
+
+#: src/tool/oi_select_agent.py:127
+msgid "  已设置为智能问答模式（无智能体）\n"
+msgstr "  已设置为智能问答模式（无智能体）\n"
+
+#: src/tool/oi_select_agent.py:129
+msgid "已取消选择\n"
+msgstr "已取消选择\n"
+
+#: src/tool/oi_select_agent.py:143
+msgid "错误: 智能体功能需要使用 openEuler Intelligence 后端\n"
+msgstr "错误: 智能体功能需要使用 openEuler Intelligence 后端\n"
+
+#: src/tool/oi_select_agent.py:144
+msgid "请先运行以下命令切换后端：\n"
+msgstr "请先运行以下命令切换后端：\n"
+
+#: src/tool/oi_select_agent.py:145
+msgid ""
+"  oi  # 然后按下 Ctrl+S 进入设置界面切换到 openEuler Intelligence 后端\n"
+msgstr ""
+"  oi  # 然后按下 Ctrl+S 进入设置界面切换到 openEuler Intelligence 后端\n"
+
+#: src/tool/oi_select_agent.py:163
+#, python-brace-format
+msgid "错误: {error}\n"
+msgstr "错误: {error}\n"
+
+#: src/tool/oi_llm_config.py:77
+msgid "需要管理员权限才能修改 openEuler Intelligence 配置文件"
+msgstr "需要管理员权限才能修改 openEuler Intelligence 配置文件"
+
+#: src/tool/oi_llm_config.py:84
+#, python-brace-format
+msgid "配置文件不存在: {path}"
+msgstr "配置文件不存在: {path}"
+
+#: src/tool/oi_llm_config.py:85
+msgid "请先运行 '(sudo) oi --init' 部署后端服务"
+msgstr "请先运行 '(sudo) oi --init' 部署后端服务"
+
+#: src/tool/oi_llm_config.py:89 src/tool/oi_llm_config.py:93
+#, python-brace-format
+msgid "配置文件不可写: {path}"
+msgstr "配置文件不可写: {path}"
+
+#: src/tool/oi_llm_config.py:96
+#, python-brace-format
+msgid "访问配置文件时权限不足: {error}"
+msgstr "访问配置文件时权限不足: {error}"
+
+#: src/tool/oi_llm_config.py:98
+#, python-brace-format
+msgid "访问配置文件时发生错误: {error}"
+msgstr "访问配置文件时发生错误: {error}"
+
+#: src/tool/oi_llm_config.py:127
+#, python-brace-format
+msgid "权限不足：无法访问配置文件 {filename}，请以管理员身份运行"
+msgstr "权限不足：无法访问配置文件 {filename}，请以管理员身份运行"
+
+#: src/tool/validators.py:135 src/tool/validators.py:584
+#: src/tool/validators.py:647
+#, python-brace-format
+msgid "连接超时 - 无法在 {timeout} 秒内连接到 {endpoint}"
+msgstr "连接超时 - 无法在 {timeout} 秒内连接到 {endpoint}"
+
+#: src/tool/validators.py:140
+#, python-brace-format
+msgid "LLM 配置验证失败: {error}"
+msgstr "LLM 配置验证失败: {error}"
+
+#: src/tool/validators.py:144
+msgid "LLM 配置验证成功"
+msgstr "LLM 配置验证成功"
+
+#: src/tool/validators.py:146
+#, python-brace-format
+msgid " - 支持工具调用，类型: {func_type}"
+msgstr " - 支持工具调用，类型: {func_type}"
+
+#: src/tool/validators.py:148
+msgid " - 不支持工具调用"
+msgstr " - 不支持工具调用"
+
+#: src/tool/validators.py:201
+msgid "无法连接到 Embedding 模型服务。"
+msgstr "无法连接到 Embedding 模型服务。"
+
+#: src/tool/validators.py:241
+msgid "基本对话测试失败"
+msgstr "基本对话测试失败"
+
+#: src/tool/validators.py:244
+msgid "基本对话功能正常"
+msgstr "基本对话功能正常"
+
+#: src/tool/validators.py:246
+msgid "对话响应为空"
+msgstr "对话响应为空"
+
+#: src/tool/validators.py:318
+msgid "不支持任何 function_call 格式"
+msgstr "不支持任何 function_call 格式"
+
+#: src/tool/validators.py:353
+#, python-brace-format
+msgid "tools 格式测试失败: {error}"
+msgstr "tools 格式测试失败: {error}"
+
+#: src/tool/validators.py:358
+msgid "支持 tools 格式的 function_call"
+msgstr "支持 tools 格式的 function_call"
+
+#: src/tool/validators.py:360
+msgid "不支持工具调用功能"
+msgstr "不支持工具调用功能"
+
+#: src/tool/validators.py:401
+#, python-brace-format
+msgid "structured_output 格式测试失败: {error}"
+msgstr "structured_output 格式测试失败: {error}"
+
+#: src/tool/validators.py:409
+msgid "structured_output 响应不是有效 JSON"
+msgstr "structured_output 响应不是有效 JSON"
+
+#: src/tool/validators.py:411
+msgid "支持 structured_output 格式"
+msgstr "支持 structured_output 格式"
+
+#: src/tool/validators.py:413
+msgid "structured_output 响应为空"
+msgstr "structured_output 响应为空"
+
+#: src/tool/validators.py:439
+#, python-brace-format
+msgid "json_mode 格式测试失败: {error}"
+msgstr "json_mode 格式测试失败: {error}"
+
+#: src/tool/validators.py:447
+msgid "json_mode 响应不是有效 JSON"
+msgstr "json_mode 响应不是有效 JSON"
+
+#: src/tool/validators.py:449
+msgid "支持 json_mode 格式"
+msgstr "支持 json_mode 格式"
+
+#: src/tool/validators.py:451
+msgid "json_mode 响应为空"
+msgstr "json_mode 响应为空"
+
+#: src/tool/validators.py:499
+msgid "支持 vLLM 结构化输出（部分支持）"
+msgstr "支持 vLLM 结构化输出（部分支持）"
+
+#: src/tool/validators.py:504
+#, python-brace-format
+msgid "不支持 vLLM guided_json 格式: {error}"
+msgstr "不支持 vLLM guided_json 格式: {error}"
+
+#: src/tool/validators.py:508
+msgid "vLLM guided_json 响应无效"
+msgstr "vLLM guided_json 响应无效"
+
+#: src/tool/validators.py:555
+msgid "支持 Ollama function_call 格式"
+msgstr "支持 Ollama function_call 格式"
+
+#: src/tool/validators.py:558
+#, python-brace-format
+msgid "不支持 Ollama function_call 格式: {error}"
+msgstr "不支持 Ollama function_call 格式: {error}"
+
+#: src/tool/validators.py:561
+msgid "Ollama function_call 响应无效"
+msgstr "Ollama function_call 响应无效"
+
+#: src/tool/validators.py:589
+#, python-brace-format
+msgid "OpenAI Embedding 配置验证失败: {error}"
+msgstr "OpenAI Embedding 配置验证失败: {error}"
+
+#: src/tool/validators.py:598
+#, python-brace-format
+msgid "OpenAI Embedding 配置验证成功 - 维度: {dimension}"
+msgstr "OpenAI Embedding 配置验证成功 - 维度: {dimension}"
+
+#: src/tool/validators.py:606
+msgid "OpenAI Embedding 响应为空"
+msgstr "OpenAI Embedding 响应为空"
+
+#: src/tool/validators.py:634
+#, python-brace-format
+msgid "MindIE Embedding 配置验证成功 - 维度: {dimension}"
+msgstr "MindIE Embedding 配置验证成功 - 维度: {dimension}"
+
+#: src/tool/validators.py:644
+msgid "MindIE Embedding 响应格式不正确"
+msgstr "MindIE Embedding 响应格式不正确"
+
+#: src/tool/validators.py:652
+#, python-brace-format
+msgid "MindIE Embedding 配置验证失败: {error}"
+msgstr "MindIE Embedding 配置验证失败: {error}"
+
+#: src/tool/validators.py:674
+msgid "服务 URL 必须以 http:// 或 https:// 开头"
+msgstr "服务 URL 必须以 http:// 或 https:// 开头"
+
+#: src/tool/validators.py:685
+msgid "访问令牌格式无效"
+msgstr "访问令牌格式无效"
+
+#: src/tool/validators.py:710
+msgid "服务返回的数据格式不正确"
+msgstr "服务返回的数据格式不正确"
+
+#: src/tool/validators.py:716
+msgid "连接成功"
+msgstr "连接成功"
+
+#: src/tool/validators.py:718
+#, python-brace-format
+msgid "服务返回错误代码: {code}"
+msgstr "服务返回错误代码: {code}"
+
+#: src/tool/validators.py:721
+msgid "无法连接到服务，请检查 URL 和网络连接"
+msgstr "无法连接到服务，请检查 URL 和网络连接"
+
+#: src/tool/validators.py:723
+msgid "连接超时，请检查网络连接或服务状态"
+msgstr "连接超时，请检查网络连接或服务状态"
+
+#: src/tool/validators.py:726
+#, python-brace-format
+msgid "连接验证失败: {error}"
+msgstr "连接验证失败: {error}"
+
+#: src/tool/validators.py:732
+msgid "访问令牌无效或已过期"
+msgstr "访问令牌无效或已过期"
+
+#: src/tool/validators.py:733
+msgid "访问权限不足"
+msgstr "访问权限不足"
+
+#: src/tool/validators.py:734
+msgid "API 接口不存在，请检查服务版本"
+msgstr "API 接口不存在，请检查服务版本"
+
+#: src/tool/validators.py:737
+#, python-brace-format
+msgid "服务响应异常，状态码: {status_code}"
+msgstr "服务响应异常，状态码: {status_code}"
+
+#: src/tool/command_processor.py:56
+msgid "请输入有效命令或问题。"
+msgstr "请输入有效命令或问题。"
+
+#: src/tool/command_processor.py:75
+msgid "检测到不安全命令，已阻止执行。"
+msgstr "检测到不安全命令，已阻止执行。"
+
+#: src/tool/command_processor.py:135
+msgid "[命令启动失败] 无法创建子进程"
+msgstr "[命令启动失败] 无法创建子进程"
+
+#: src/tool/command_processor.py:136
+#, python-brace-format
+msgid "无法启动命令 '{command}'，请分析可能原因并给出解决建议。"
+msgstr "无法启动命令 '{command}'，请分析可能原因并给出解决建议。"
+
+#: src/tool/command_processor.py:165
+#, python-brace-format
+msgid ""
+"\n"
+"[命令完成] 退出码: {returncode}"
+msgstr ""
+"\n"
+"[命令完成] 退出码: {returncode}"
+
+#: src/tool/command_processor.py:183
+#, python-brace-format
+msgid "[命令失败] 退出码: {returncode}"
+msgstr "[命令失败] 退出码: {returncode}"
+
+#: src/tool/command_processor.py:188
+#, python-brace-format
+msgid ""
+"命令 '{command}' 以非零状态 {returncode} 退出。\n"
+"标准错误输出如下：\n"
+"{stderr_text}\n"
+"请分析原因并提供解决建议。"
+msgstr ""
+"命令 '{command}' 以非零状态 {returncode} 退出。\n"
+"标准错误输出如下：\n"
+"{stderr_text}\n"
+"请分析原因并提供解决建议。"
+
+#: src/tool/command_processor.py:206
+msgid "读取 stderr 失败"
+msgstr "读取 stderr 失败"
diff --git a/src/i18n/manager.py b/src/i18n/manager.py
index 7a04747ed0c33106d5cfe86b87a73f1bb5b81203..269c7c8461b135e7173a45f0d01ea5684a45bb6b 100644
--- a/src/i18n/manager.py
+++ b/src/i18n/manager.py
@@ -11,8 +11,40 @@ SUPPORTED_LOCALES = {
     "zh_CN": "简体中文",
 }
 
-# 默认语言 - 英语
-DEFAULT_LOCALE = "en_US"
+# 备用语言（当系统语言无法检测时使用）
+FALLBACK_LOCALE = "en_US"
+
+
+def _detect_default_locale() -> str:
+    """
+    检测默认语言环境（在模块加载时调用）
+
+    Returns:
+        检测到的语言代码，如果不支持则返回备用语言（英语）
+
+    """
+    try:
+        # 获取系统语言设置
+        system_locale, _ = locale.getdefaultlocale()
+        if system_locale:
+            # 标准化语言代码 (如 zh_CN.UTF-8 -> zh_CN)
+            locale_code = system_locale.split(".")[0]
+            if locale_code.startswith("zh"):
+                locale_code = "zh_CN"
+            if locale_code.startswith("en"):
+                locale_code = "en_US"
+            if locale_code in SUPPORTED_LOCALES:
+                return locale_code
+    except (ValueError, TypeError, locale.Error):
+        # 捕获可能的 locale 相关异常
+        pass
+
+    # 无法检测或不支持时，返回备用语言
+    return FALLBACK_LOCALE
+
+
+# 默认语言 - 根据系统语言自动检测
+DEFAULT_LOCALE = _detect_default_locale()
 
 
 class I18nManager:
@@ -86,25 +118,10 @@ class I18nManager:
         检测系统语言环境
 
         Returns:
-            检测到的语言代码，如果不支持则返回默认语言（英语）
+            检测到的语言代码，如果不支持则返回默认语言
 
         """
-        try:
-            # 获取系统语言设置
-            system_locale, _ = locale.getdefaultlocale()
-            if system_locale:
-                # 标准化语言代码 (如 zh_CN.UTF-8 -> zh_CN)
-                locale_code = system_locale.split(".")[0]
-                if locale_code.startswith("zh"):
-                    locale_code = "zh_CN"
-                if locale_code in SUPPORTED_LOCALES:
-                    return locale_code
-        except (ValueError, TypeError, locale.Error):
-            # 捕获可能的 locale 相关异常
-            pass
-
-        # 无法检测或不支持时，返回默认语言
-        return DEFAULT_LOCALE
+        return _detect_default_locale()
 
     def translate(self, message: str, **kwargs: str | float) -> str:
         """
diff --git a/src/main.py b/src/main.py
index 85857671320908aec2c12a929fa7127e886b2a35..bc2dd290644bbf969831f75ac19b5174fce0c23e 100644
--- a/src/main.py
+++ b/src/main.py
@@ -6,7 +6,6 @@ import atexit
 import sys
 
 from __version__ import __version__
-from app.tui import IntelligentTerminal
 from config.manager import ConfigManager
 from config.model import LogLevel
 from i18n.manager import _, get_locale, get_supported_locales, init_i18n, set_locale
@@ -222,6 +221,9 @@ def main() -> None:
     logger = get_logger(__name__)
 
     try:
+        # 延迟导入 IntelligentTerminal，确保在 i18n 初始化之后
+        from app.tui import IntelligentTerminal  # noqa: PLC0415
+
         app = IntelligentTerminal()
         app.run()
     except Exception: