diff --git a/backend/sql/migrations/upgrade_imeeting_qy_to_latest.sql b/backend/sql/migrations/upgrade_imeeting_qy_to_latest.sql
new file mode 100644
index 0000000..cd485da
--- /dev/null
+++ b/backend/sql/migrations/upgrade_imeeting_qy_to_latest.sql
@@ -0,0 +1,1240 @@
+-- iMeeting legacy DB upgrade
+-- Goal: upgrade an old schema to the latest application-facing structure
+-- Strategy:
+-- 1) standardize system tables to sys_* base tables
+-- 2) align shared table columns/indexes
+-- 3) create missing configuration tables
+-- 4) migrate legacy configuration/hot-word data into new tables
+-- 5) rebuild menu tree and role permissions needed by the latest backend
+-- 6) recreate compatibility views
+
+-- ----------------------------------------------------------------------
+-- 1. Rename legacy system tables to sys_* base tables when needed
+-- ----------------------------------------------------------------------
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'users' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_users'
+    ),
+    'RENAME TABLE users TO sys_users',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'roles' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_roles'
+    ),
+    'RENAME TABLE roles TO sys_roles',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'menus' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus'
+    ),
+    'RENAME TABLE menus TO sys_menus',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'role_menu_permissions' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions'
+    ),
+    'RENAME TABLE role_menu_permissions TO sys_role_menu_permissions',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'dict_data' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_dict_data'
+    ),
+    'RENAME TABLE dict_data TO sys_dict_data',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'system_parameters' AND table_type = 'BASE TABLE'
+    ) AND NOT EXISTS (
+      SELECT 1 FROM information_schema.tables
+      WHERE table_schema = DATABASE() AND table_name = 'sys_system_parameters'
+    ),
+    'RENAME TABLE system_parameters TO sys_system_parameters',
+    'SELECT 1'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- ----------------------------------------------------------------------
+-- 2. Align existing sys_* tables
+-- ----------------------------------------------------------------------
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_users' AND index_name = 'idx_role_id'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_users ADD KEY idx_role_id (role_id)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_roles' AND index_name = 'uk_role_name'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_roles ADD UNIQUE KEY uk_role_name (role_name)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND column_name = 'menu_level'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD COLUMN menu_level TINYINT(3) NOT NULL DEFAULT 1 COMMENT ''菜单层级（根节点为1）'' AFTER parent_id'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND column_name = 'tree_path'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD COLUMN tree_path VARCHAR(255) DEFAULT NULL COMMENT ''树路径（如 /3/6）'' AFTER menu_level'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND column_name = 'is_visible'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD COLUMN is_visible TINYINT(1) NOT NULL DEFAULT 1 COMMENT ''是否在侧边菜单显示'' AFTER is_active'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND index_name = 'idx_menu_level'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD KEY idx_menu_level (menu_level)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND index_name = 'idx_tree_path'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD KEY idx_tree_path (tree_path)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND index_name = 'idx_is_visible'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD KEY idx_is_visible (is_visible)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_menus' AND index_name = 'idx_menus_visible_tree'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_menus ADD KEY idx_menus_visible_tree (is_active, is_visible, parent_id, sort_order, menu_id)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND column_name = 'granted_by'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD COLUMN granted_by INT(11) DEFAULT NULL COMMENT ''授权操作人ID'' AFTER menu_id'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND column_name = 'granted_at'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD COLUMN granted_at TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP COMMENT ''授权时间'' AFTER granted_by'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND index_name = 'idx_granted_by'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD KEY idx_granted_by (granted_by)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND index_name = 'idx_granted_at'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD KEY idx_granted_at (granted_at)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND index_name = 'idx_rmp_role'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD KEY idx_rmp_role (role_id)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'sys_role_menu_permissions' AND index_name = 'idx_rmp_menu'
+    ),
+    'SELECT 1',
+    'ALTER TABLE sys_role_menu_permissions ADD KEY idx_rmp_menu (menu_id)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+ALTER TABLE `terminals`
+MODIFY COLUMN `current_user_id` INT(11) DEFAULT NULL COMMENT '终端绑定账号';
+
+-- prompts: add is_system and composite index
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.columns
+      WHERE table_schema = DATABASE() AND table_name = 'prompts' AND column_name = 'is_system'
+    ),
+    'SELECT 1',
+    'ALTER TABLE prompts ADD COLUMN is_system TINYINT(1) NOT NULL DEFAULT 0 AFTER creator_id'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+SET @sql := (
+  SELECT IF(
+    EXISTS (
+      SELECT 1 FROM information_schema.statistics
+      WHERE table_schema = DATABASE() AND table_name = 'prompts' AND index_name = 'idx_prompts_task_scope_active'
+    ),
+    'SELECT 1',
+    'CREATE INDEX idx_prompts_task_scope_active ON prompts (task_type, is_system, creator_id, is_active, is_default)'
+  )
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+UPDATE prompts
+SET is_system = 1
+WHERE creator_id = 1;
+
+-- ----------------------------------------------------------------------
+-- 3. Create missing tables with latest structure
+-- ----------------------------------------------------------------------
+CREATE TABLE IF NOT EXISTS `sys_system_parameters` (
+  `param_id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `param_key` varchar(128) NOT NULL,
+  `param_name` varchar(255) NOT NULL,
+  `param_value` text,
+  `value_type` varchar(32) NOT NULL DEFAULT 'string',
+  `category` varchar(64) NOT NULL DEFAULT 'system',
+  `description` varchar(500) DEFAULT NULL,
+  `is_active` tinyint(1) NOT NULL DEFAULT '1',
+  `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`param_id`),
+  UNIQUE KEY `uk_param_key` (`param_key`),
+  KEY `idx_param_category` (`category`),
+  KEY `idx_param_active` (`is_active`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `ai_model_configs` (
+  `model_id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `model_code` varchar(128) NOT NULL,
+  `model_name` varchar(255) NOT NULL,
+  `model_type` varchar(32) NOT NULL,
+  `provider` varchar(64) DEFAULT NULL,
+  `endpoint_url` varchar(512) DEFAULT NULL,
+  `api_key` varchar(512) DEFAULT NULL,
+  `llm_model_name` varchar(128) DEFAULT NULL,
+  `llm_timeout` int(11) DEFAULT NULL,
+  `llm_temperature` decimal(5,2) DEFAULT NULL,
+  `llm_top_p` decimal(5,2) DEFAULT NULL,
+  `llm_max_tokens` int(11) DEFAULT NULL,
+  `llm_system_prompt` text,
+  `asr_model_name` varchar(128) DEFAULT NULL,
+  `asr_vocabulary_id` varchar(255) DEFAULT NULL,
+  `asr_speaker_count` int(11) DEFAULT NULL,
+  `asr_language_hints` varchar(255) DEFAULT NULL,
+  `asr_disfluency_removal_enabled` tinyint(1) DEFAULT NULL,
+  `asr_diarization_enabled` tinyint(1) DEFAULT NULL,
+  `config_json` json DEFAULT NULL,
+  `description` varchar(500) DEFAULT NULL,
+  `is_active` tinyint(1) NOT NULL DEFAULT '1',
+  `is_default` tinyint(1) NOT NULL DEFAULT '0',
+  `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`model_id`),
+  UNIQUE KEY `uk_model_code` (`model_code`),
+  KEY `idx_model_type` (`model_type`),
+  KEY `idx_model_active` (`is_active`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `llm_model_config` (
+  `config_id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `model_code` varchar(128) NOT NULL,
+  `model_name` varchar(255) NOT NULL,
+  `provider` varchar(64) DEFAULT NULL,
+  `endpoint_url` varchar(512) DEFAULT NULL,
+  `api_key` varchar(512) DEFAULT NULL,
+  `llm_model_name` varchar(128) NOT NULL,
+  `llm_timeout` int(11) NOT NULL DEFAULT '120',
+  `llm_temperature` decimal(5,2) NOT NULL DEFAULT '0.70',
+  `llm_top_p` decimal(5,2) NOT NULL DEFAULT '0.90',
+  `llm_max_tokens` int(11) NOT NULL DEFAULT '2048',
+  `llm_system_prompt` text,
+  `description` varchar(500) DEFAULT NULL,
+  `is_active` tinyint(1) NOT NULL DEFAULT '1',
+  `is_default` tinyint(1) NOT NULL DEFAULT '0',
+  `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`config_id`),
+  UNIQUE KEY `uk_llm_model_code` (`model_code`),
+  KEY `idx_llm_active` (`is_active`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `audio_model_config` (
+  `config_id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `model_code` varchar(128) NOT NULL,
+  `model_name` varchar(255) NOT NULL,
+  `audio_scene` varchar(32) NOT NULL,
+  `provider` varchar(64) DEFAULT NULL,
+  `endpoint_url` varchar(512) DEFAULT NULL,
+  `api_key` varchar(512) DEFAULT NULL,
+  `asr_model_name` varchar(128) DEFAULT NULL,
+  `asr_vocabulary_id` varchar(255) DEFAULT NULL,
+  `hot_word_group_id` int(11) DEFAULT NULL COMMENT '关联热词组ID',
+  `extra_config` json DEFAULT NULL COMMENT '音频模型差异化配置(JSON)',
+  `asr_speaker_count` int(11) DEFAULT NULL,
+  `asr_language_hints` varchar(255) DEFAULT NULL,
+  `asr_disfluency_removal_enabled` tinyint(1) DEFAULT NULL,
+  `asr_diarization_enabled` tinyint(1) DEFAULT NULL,
+  `vp_template_text` text,
+  `vp_duration_seconds` int(11) DEFAULT NULL,
+  `vp_sample_rate` int(11) DEFAULT NULL,
+  `vp_channels` int(11) DEFAULT NULL,
+  `vp_max_size_bytes` bigint(20) DEFAULT NULL,
+  `description` varchar(500) DEFAULT NULL,
+  `is_active` tinyint(1) NOT NULL DEFAULT '1',
+  `is_default` tinyint(1) NOT NULL DEFAULT '0',
+  `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`config_id`),
+  UNIQUE KEY `uk_audio_model_code` (`model_code`),
+  KEY `idx_audio_scene` (`audio_scene`),
+  KEY `idx_audio_active` (`is_active`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `hot_word_group` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '热词组名称',
+  `description` varchar(500) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '描述',
+  `vocabulary_id` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '阿里云 DashScope 词表ID',
+  `last_sync_time` datetime DEFAULT NULL COMMENT '最后同步时间',
+  `status` tinyint(4) NOT NULL DEFAULT '1' COMMENT '1:启用 0:停用',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='热词组主表';
+
+CREATE TABLE IF NOT EXISTS `hot_word_item` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `group_id` int(11) NOT NULL COMMENT '热词组ID',
+  `text` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '热词内容',
+  `weight` int(11) NOT NULL DEFAULT '4' COMMENT '权重 1-10',
+  `lang` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'zh' COMMENT 'zh/en',
+  `status` tinyint(4) NOT NULL DEFAULT '1' COMMENT '1:启用 0:停用',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `idx_group_text` (`group_id`,`text`),
+  KEY `idx_group_id` (`group_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='热词条目从表';
+
+CREATE TABLE IF NOT EXISTS `prompt_config` (
+  `config_id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `user_id` int(11) NOT NULL,
+  `task_type` enum('MEETING_TASK','KNOWLEDGE_TASK') NOT NULL,
+  `prompt_id` int(11) NOT NULL,
+  `is_enabled` tinyint(1) NOT NULL DEFAULT '1',
+  `sort_order` int(11) NOT NULL DEFAULT '0',
+  `created_at` datetime DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`config_id`),
+  UNIQUE KEY `uk_user_task_prompt` (`user_id`,`task_type`,`prompt_id`),
+  KEY `idx_user_task_order` (`user_id`,`task_type`,`sort_order`),
+  KEY `idx_prompt_id` (`prompt_id`),
+  CONSTRAINT `fk_upc_prompt` FOREIGN KEY (`prompt_id`) REFERENCES `prompts` (`id`) ON DELETE CASCADE,
+  CONSTRAINT `fk_upc_user` FOREIGN KEY (`user_id`) REFERENCES `sys_users` (`user_id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE IF NOT EXISTS `sys_user_mcp` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `user_id` int(11) NOT NULL,
+  `bot_id` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `bot_secret` varchar(128) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `status` tinyint(1) NOT NULL DEFAULT '1',
+  `last_used_at` datetime DEFAULT NULL,
+  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uk_sys_user_mcp_user_id` (`user_id`),
+  UNIQUE KEY `uk_sys_user_mcp_bot_id` (`bot_id`),
+  KEY `idx_sys_user_mcp_status` (`status`),
+  CONSTRAINT `fk_sys_user_mcp_user` FOREIGN KEY (`user_id`) REFERENCES `sys_users` (`user_id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户MCP接入凭证';
+
+-- ----------------------------------------------------------------------
+-- 4. Migrate legacy system config data into new parameter/model tables
+-- ----------------------------------------------------------------------
+INSERT INTO `sys_system_parameters`
+(`param_key`, `param_name`, `param_value`, `value_type`, `category`, `description`, `is_active`)
+SELECT
+  d.`dict_code`,
+  d.`label_cn`,
+  JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.value')),
+  'string',
+  'system',
+  CONCAT('migrated from dict_data.system_config(', d.`dict_code`, ')'),
+  CASE WHEN d.`status` = 1 THEN 1 ELSE 0 END
+FROM `sys_dict_data` d
+WHERE d.`dict_type` = 'system_config'
+  AND d.`dict_code` NOT IN ('llm_model', 'voiceprint')
+  AND JSON_EXTRACT(d.`extension_attr`, '$.value') IS NOT NULL
+ON DUPLICATE KEY UPDATE
+  `param_name` = VALUES(`param_name`),
+  `param_value` = VALUES(`param_value`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`);
+
+INSERT INTO `ai_model_configs`
+(`model_code`, `model_name`, `model_type`, `provider`, `endpoint_url`, `api_key`,
+ `llm_model_name`, `llm_timeout`, `llm_temperature`, `llm_top_p`, `llm_max_tokens`, `llm_system_prompt`,
+ `config_json`, `description`, `is_active`, `is_default`)
+SELECT
+  'llm_model',
+  '默认文本模型',
+  'llm',
+  'dashscope',
+  'https://dashscope.aliyuncs.com/compatible-mode/v1',
+  NULL,
+  COALESCE(JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.model_name')), 'qwen-plus'),
+  COALESCE(CAST(JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.time_out')) AS UNSIGNED), 120),
+  COALESCE(CAST(JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.temperature')) AS DECIMAL(5,2)), 0.70),
+  COALESCE(CAST(JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.top_p')) AS DECIMAL(5,2)), 0.90),
+  COALESCE(CAST(JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.max_tokens')) AS UNSIGNED), 2048),
+  JSON_UNQUOTE(JSON_EXTRACT(d.`extension_attr`, '$.system_prompt')),
+  d.`extension_attr`,
+  'migrated from dict_data.system_config.llm_model',
+  CASE WHEN d.`status` = 1 THEN 1 ELSE 0 END,
+  1
+FROM `sys_dict_data` d
+WHERE d.`dict_type` = 'system_config'
+  AND d.`dict_code` = 'llm_model'
+LIMIT 1
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `llm_model_name` = VALUES(`llm_model_name`),
+  `llm_timeout` = VALUES(`llm_timeout`),
+  `llm_temperature` = VALUES(`llm_temperature`),
+  `llm_top_p` = VALUES(`llm_top_p`),
+  `llm_max_tokens` = VALUES(`llm_max_tokens`),
+  `llm_system_prompt` = VALUES(`llm_system_prompt`),
+  `config_json` = VALUES(`config_json`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+INSERT INTO `ai_model_configs`
+(`model_code`, `model_name`, `model_type`, `provider`, `endpoint_url`, `api_key`,
+ `asr_model_name`, `asr_vocabulary_id`, `asr_speaker_count`, `asr_language_hints`,
+ `asr_disfluency_removal_enabled`, `asr_diarization_enabled`,
+ `config_json`, `description`, `is_active`, `is_default`)
+SELECT
+  'audio_model',
+  '默认音频识别模型',
+  'audio',
+  'dashscope',
+  'https://dashscope.aliyuncs.com/api/v1/services/audio/asr/transcription',
+  NULL,
+  'paraformer-v2',
+  (
+    SELECT JSON_UNQUOTE(JSON_EXTRACT(d2.`extension_attr`, '$.value'))
+    FROM `sys_dict_data` d2
+    WHERE d2.`dict_type` = 'system_config' AND d2.`dict_code` = 'asr_vocabulary_id'
+    LIMIT 1
+  ),
+  10,
+  'zh, en',
+  1,
+  1,
+  JSON_OBJECT(
+    'model', 'paraformer-v2',
+    'vocabulary_id', (
+      SELECT JSON_UNQUOTE(JSON_EXTRACT(d3.`extension_attr`, '$.value'))
+      FROM `sys_dict_data` d3
+      WHERE d3.`dict_type` = 'system_config' AND d3.`dict_code` = 'asr_vocabulary_id'
+      LIMIT 1
+    ),
+    'speaker_count', 10,
+    'language_hints', 'zh, en',
+    'disfluency_removal_enabled', TRUE,
+    'diarization_enabled', TRUE
+  ),
+  'migrated default ASR config',
+  1,
+  1
+FROM DUAL
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `asr_model_name` = VALUES(`asr_model_name`),
+  `asr_vocabulary_id` = VALUES(`asr_vocabulary_id`),
+  `asr_speaker_count` = VALUES(`asr_speaker_count`),
+  `asr_language_hints` = VALUES(`asr_language_hints`),
+  `asr_disfluency_removal_enabled` = VALUES(`asr_disfluency_removal_enabled`),
+  `asr_diarization_enabled` = VALUES(`asr_diarization_enabled`),
+  `config_json` = VALUES(`config_json`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+INSERT INTO `ai_model_configs`
+(`model_code`, `model_name`, `model_type`, `provider`, `endpoint_url`, `api_key`,
+ `config_json`, `description`, `is_active`, `is_default`)
+SELECT
+  'voiceprint_model',
+  '默认声纹模型',
+  'audio',
+  'funasr',
+  'http://127.0.0.1:10095',
+  NULL,
+  d.`extension_attr`,
+  'migrated from dict_data.system_config.voiceprint',
+  CASE WHEN d.`status` = 1 THEN 1 ELSE 0 END,
+  0
+FROM `sys_dict_data` d
+WHERE d.`dict_type` = 'system_config'
+  AND d.`dict_code` = 'voiceprint'
+LIMIT 1
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `config_json` = VALUES(`config_json`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+INSERT INTO `llm_model_config`
+(`model_code`, `model_name`, `provider`, `endpoint_url`, `api_key`, `llm_model_name`, `llm_timeout`,
+ `llm_temperature`, `llm_top_p`, `llm_max_tokens`, `llm_system_prompt`, `description`, `is_active`, `is_default`)
+SELECT
+  `model_code`,
+  `model_name`,
+  `provider`,
+  `endpoint_url`,
+  `api_key`,
+  COALESCE(`llm_model_name`, JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.model_name')), 'qwen-plus'),
+  COALESCE(`llm_timeout`, CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.time_out')) AS UNSIGNED), 120),
+  COALESCE(`llm_temperature`, CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.temperature')) AS DECIMAL(5,2)), 0.70),
+  COALESCE(`llm_top_p`, CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.top_p')) AS DECIMAL(5,2)), 0.90),
+  COALESCE(`llm_max_tokens`, CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.max_tokens')) AS UNSIGNED), 2048),
+  COALESCE(`llm_system_prompt`, JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.system_prompt'))),
+  `description`,
+  `is_active`,
+  `is_default`
+FROM `ai_model_configs`
+WHERE `model_type` = 'llm'
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `api_key` = VALUES(`api_key`),
+  `llm_model_name` = VALUES(`llm_model_name`),
+  `llm_timeout` = VALUES(`llm_timeout`),
+  `llm_temperature` = VALUES(`llm_temperature`),
+  `llm_top_p` = VALUES(`llm_top_p`),
+  `llm_max_tokens` = VALUES(`llm_max_tokens`),
+  `llm_system_prompt` = VALUES(`llm_system_prompt`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+INSERT INTO `audio_model_config`
+(`model_code`, `model_name`, `audio_scene`, `provider`, `endpoint_url`, `api_key`, `asr_model_name`, `asr_vocabulary_id`,
+ `asr_speaker_count`, `asr_language_hints`, `asr_disfluency_removal_enabled`, `asr_diarization_enabled`,
+ `description`, `is_active`, `is_default`)
+SELECT
+  `model_code`,
+  `model_name`,
+  'asr',
+  `provider`,
+  `endpoint_url`,
+  `api_key`,
+  COALESCE(`asr_model_name`, JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.model')), 'paraformer-v2'),
+  COALESCE(`asr_vocabulary_id`, JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.vocabulary_id'))),
+  COALESCE(`asr_speaker_count`, CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.speaker_count')) AS UNSIGNED), 10),
+  COALESCE(`asr_language_hints`, 'zh, en'),
+  COALESCE(`asr_disfluency_removal_enabled`, 1),
+  COALESCE(`asr_diarization_enabled`, 1),
+  `description`,
+  `is_active`,
+  `is_default`
+FROM `ai_model_configs`
+WHERE `model_code` = 'audio_model'
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `api_key` = VALUES(`api_key`),
+  `asr_model_name` = VALUES(`asr_model_name`),
+  `asr_vocabulary_id` = VALUES(`asr_vocabulary_id`),
+  `asr_speaker_count` = VALUES(`asr_speaker_count`),
+  `asr_language_hints` = VALUES(`asr_language_hints`),
+  `asr_disfluency_removal_enabled` = VALUES(`asr_disfluency_removal_enabled`),
+  `asr_diarization_enabled` = VALUES(`asr_diarization_enabled`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+INSERT INTO `audio_model_config`
+(`model_code`, `model_name`, `audio_scene`, `provider`, `endpoint_url`, `api_key`,
+ `vp_template_text`, `vp_duration_seconds`, `vp_sample_rate`, `vp_channels`, `vp_max_size_bytes`,
+ `description`, `is_active`, `is_default`)
+SELECT
+  `model_code`,
+  `model_name`,
+  'voiceprint',
+  `provider`,
+  `endpoint_url`,
+  `api_key`,
+  JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.template_text')),
+  CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.duration_seconds')) AS UNSIGNED),
+  CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.sample_rate')) AS UNSIGNED),
+  CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.channels')) AS UNSIGNED),
+  CAST(JSON_UNQUOTE(JSON_EXTRACT(`config_json`, '$.voiceprint_max_size')) AS UNSIGNED),
+  `description`,
+  `is_active`,
+  `is_default`
+FROM `ai_model_configs`
+WHERE `model_code` = 'voiceprint_model'
+ON DUPLICATE KEY UPDATE
+  `model_name` = VALUES(`model_name`),
+  `provider` = VALUES(`provider`),
+  `endpoint_url` = VALUES(`endpoint_url`),
+  `api_key` = VALUES(`api_key`),
+  `vp_template_text` = VALUES(`vp_template_text`),
+  `vp_duration_seconds` = VALUES(`vp_duration_seconds`),
+  `vp_sample_rate` = VALUES(`vp_sample_rate`),
+  `vp_channels` = VALUES(`vp_channels`),
+  `vp_max_size_bytes` = VALUES(`vp_max_size_bytes`),
+  `description` = VALUES(`description`),
+  `is_active` = VALUES(`is_active`),
+  `is_default` = VALUES(`is_default`);
+
+-- Backfill extra_config JSON for audio model configs
+UPDATE `audio_model_config`
+SET `extra_config` = CASE
+  WHEN `audio_scene` = 'asr' THEN JSON_OBJECT(
+    'model', `asr_model_name`,
+    'vocabulary_id', `asr_vocabulary_id`,
+    'speaker_count', `asr_speaker_count`,
+    'language_hints', `asr_language_hints`,
+    'disfluency_removal_enabled', `asr_disfluency_removal_enabled`,
+    'diarization_enabled', `asr_diarization_enabled`
+  )
+  WHEN `audio_scene` = 'voiceprint' THEN JSON_OBJECT(
+    'model', `model_name`,
+    'template_text', `vp_template_text`,
+    'duration_seconds', `vp_duration_seconds`,
+    'sample_rate', `vp_sample_rate`,
+    'channels', `vp_channels`,
+    'max_size_bytes', `vp_max_size_bytes`
+  )
+  ELSE JSON_OBJECT()
+END
+WHERE `extra_config` IS NULL;
+
+-- ----------------------------------------------------------------------
+-- 5. Hot-word migration: old hot_words -> group/item
+-- ----------------------------------------------------------------------
+INSERT INTO `hot_word_group` (`name`, `description`, `status`)
+SELECT '默认热词组', '从旧 hot_words 表迁移的热词', 1
+FROM DUAL
+WHERE EXISTS (SELECT 1 FROM `hot_words` LIMIT 1)
+  AND NOT EXISTS (SELECT 1 FROM `hot_word_group` WHERE `name` = '默认热词组');
+
+UPDATE `hot_word_group` g
+JOIN (
+  SELECT JSON_UNQUOTE(JSON_EXTRACT(`extension_attr`, '$.value')) AS vocab_id
+  FROM `sys_dict_data`
+  WHERE `dict_type` = 'system_config' AND `dict_code` = 'asr_vocabulary_id'
+  LIMIT 1
+) p ON 1 = 1
+SET g.`vocabulary_id` = p.`vocab_id`,
+    g.`last_sync_time` = COALESCE(g.`last_sync_time`, NOW())
+WHERE g.`name` = '默认热词组'
+  AND (g.`vocabulary_id` IS NULL OR g.`vocabulary_id` = '');
+
+INSERT INTO `hot_word_item`
+(`group_id`, `text`, `weight`, `lang`, `status`, `create_time`, `update_time`)
+SELECT
+  g.`id`,
+  hw.`text`,
+  hw.`weight`,
+  hw.`lang`,
+  hw.`status`,
+  hw.`create_time`,
+  hw.`update_time`
+FROM `hot_words` hw
+JOIN `hot_word_group` g ON g.`name` = '默认热词组'
+LEFT JOIN `hot_word_item` i
+  ON i.`group_id` = g.`id`
+ AND i.`text` = hw.`text`
+WHERE i.`id` IS NULL;
+
+UPDATE `audio_model_config` a
+JOIN `hot_word_group` g ON g.`name` = '默认热词组'
+SET a.`hot_word_group_id` = g.`id`
+WHERE a.`audio_scene` = 'asr'
+  AND a.`hot_word_group_id` IS NULL
+  AND a.`asr_vocabulary_id` IS NOT NULL
+  AND a.`asr_vocabulary_id` <> '';
+
+-- ----------------------------------------------------------------------
+-- 6. Rebuild menu tree for the latest backend
+-- ----------------------------------------------------------------------
+-- Reuse legacy root rows when possible
+SET @has_dashboard := (SELECT COUNT(*) FROM `sys_menus` WHERE `menu_code` = 'dashboard');
+UPDATE `sys_menus`
+SET
+  `menu_code` = 'dashboard',
+  `menu_name` = 'Dashboard',
+  `menu_icon` = 'DashboardOutlined',
+  `menu_url` = '/dashboard',
+  `menu_type` = 'link',
+  `parent_id` = NULL,
+  `sort_order` = 1,
+  `is_active` = 1,
+  `is_visible` = 1,
+  `description` = '管理员桌面'
+WHERE `menu_code` = 'account_settings'
+  AND @has_dashboard = 0;
+
+SET @has_desktop := (SELECT COUNT(*) FROM `sys_menus` WHERE `menu_code` = 'desktop');
+UPDATE `sys_menus`
+SET
+  `menu_code` = 'desktop',
+  `menu_name` = 'Desktop',
+  `menu_icon` = 'DesktopOutlined',
+  `menu_url` = '/dashboard',
+  `menu_type` = 'link',
+  `parent_id` = NULL,
+  `sort_order` = 2,
+  `is_active` = 1,
+  `is_visible` = 1,
+  `description` = '普通用户桌面'
+WHERE `menu_code` = 'logout'
+  AND @has_desktop = 0;
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+VALUES
+('dashboard', 'Dashboard', 'DashboardOutlined', '/dashboard', 'link', NULL, 1, NULL, 1, 1, 1, '管理员桌面')
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+VALUES
+('desktop', 'Desktop', 'DesktopOutlined', '/dashboard', 'link', NULL, 1, NULL, 2, 1, 1, '普通用户桌面')
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+VALUES
+('platform_admin', '平台管理', 'Shield', '/admin/management/hot-word-management', 'link', NULL, 1, NULL, 3, 1, 1, '平台管理员后台'),
+('system_management', '系统管理', 'Setting', '/admin/management/user-management', 'link', NULL, 1, NULL, 4, 1, 1, '系统基础配置管理（用户、权限、字典、参数）'),
+('meeting_manage', '会议管理', 'CalendarOutlined', '/meetings/center', 'link', NULL, 1, NULL, 2, 1, 1, '普通用户会议菜单')
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'prompt_management', '提示词库', 'BookText', '/prompt-management', 'link',
+  p.`menu_id`, 2, NULL, 3, 1, 1, '管理AI提示词模版'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'hot_word_management', '热词管理', 'Text', '/admin/management/hot-word-management', 'link',
+  p.`menu_id`, 2, NULL, 1, 1, 1, 'ASR 热词与同步'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'model_management', '模型管理', 'Appstore', '/admin/management/model-management', 'link',
+  p.`menu_id`, 2, NULL, 2, 1, 1, '音频/LLM模型配置管理'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'client_management', '客户端管理', 'Smartphone', '/admin/management/client-management', 'link',
+  p.`menu_id`, 2, NULL, 5, 1, 1, '版本、下载地址、发布状态'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'external_app_management', '外部应用管理', 'AppWindow', '/admin/management/external-app-management', 'link',
+  p.`menu_id`, 2, NULL, 6, 1, 1, '外部系统入口与图标配置'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'terminal_management', '终端管理', 'Monitor', '/admin/management/terminal-management', 'link',
+  p.`menu_id`, 2, NULL, 7, 1, 1, '专用设备、激活和绑定状态'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'platform_admin'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'user_management', '用户管理', 'Users', '/admin/management/user-management', 'link',
+  p.`menu_id`, 2, NULL, 1, 1, 1, '账号、角色、密码重置'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'system_management'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'permission_management', '权限管理', 'KeyRound', '/admin/management/permission-management', 'link',
+  p.`menu_id`, 2, NULL, 2, 1, 1, '菜单与角色授权矩阵'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'system_management'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'dict_management', '字典管理', 'BookMarked', '/admin/management/dict-management', 'link',
+  p.`menu_id`, 2, NULL, 3, 1, 1, '码表、平台类型、扩展属性'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'system_management'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'parameter_management', '参数管理', 'Setting', '/admin/management/parameter-management', 'link',
+  p.`menu_id`, 2, NULL, 8, 1, 1, '系统参数管理'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'system_management'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'permission_menu_tree', '菜单树维护', 'AppstoreAdd', '/admin/management/permission-management', 'link',
+  p.`menu_id`, 3, NULL, 20, 1, 0, '权限管理中的菜单树维护入口（隐藏于侧栏）'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'permission_management'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'meeting_center', '会议中心', 'CalendarOutlined', '/meetings/center', 'link',
+  p.`menu_id`, 2, NULL, 1, 1, 1, '普通用户会议中心'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'meeting_manage'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'prompt_config', '提示词配置', 'Book', '/prompt-config', 'link',
+  p.`menu_id`, 2, NULL, 2, 1, 1, '用户可配置启用提示词与排序'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'meeting_manage'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+INSERT INTO `sys_menus`
+(`menu_code`, `menu_name`, `menu_icon`, `menu_url`, `menu_type`, `parent_id`, `menu_level`, `tree_path`, `sort_order`, `is_active`, `is_visible`, `description`)
+SELECT
+  'personal_prompt_library', '个人提示词仓库', 'ReadOutlined', '/personal-prompts', 'link',
+  p.`menu_id`, 2, NULL, 3, 0, 1, '普通用户个人提示词仓库'
+FROM `sys_menus` p
+WHERE p.`menu_code` = 'meeting_manage'
+ON DUPLICATE KEY UPDATE
+  `menu_name` = VALUES(`menu_name`),
+  `menu_icon` = VALUES(`menu_icon`),
+  `menu_url` = VALUES(`menu_url`),
+  `menu_type` = VALUES(`menu_type`),
+  `parent_id` = VALUES(`parent_id`),
+  `sort_order` = VALUES(`sort_order`),
+  `is_active` = VALUES(`is_active`),
+  `is_visible` = VALUES(`is_visible`),
+  `description` = VALUES(`description`);
+
+-- Menu tree metadata (supports current depth 3)
+UPDATE `sys_menus`
+SET `menu_level` = 1,
+    `tree_path` = CONCAT('/', `menu_id`)
+WHERE `parent_id` IS NULL;
+
+UPDATE `sys_menus` c
+JOIN `sys_menus` p ON c.`parent_id` = p.`menu_id`
+SET c.`menu_level` = p.`menu_level` + 1,
+    c.`tree_path` = CONCAT(p.`tree_path`, '/', c.`menu_id`);
+
+UPDATE `sys_menus` c
+JOIN `sys_menus` p ON c.`parent_id` = p.`menu_id`
+SET c.`menu_level` = p.`menu_level` + 1,
+    c.`tree_path` = CONCAT(p.`tree_path`, '/', c.`menu_id`);
+
+-- ----------------------------------------------------------------------
+-- 7. Align role-menu permissions for latest menu model
+-- ----------------------------------------------------------------------
+-- Admin gets all active menus
+INSERT IGNORE INTO `sys_role_menu_permissions` (`role_id`, `menu_id`, `granted_by`, `granted_at`)
+SELECT 1, m.`menu_id`, 1, NOW()
+FROM `sys_menus` m
+WHERE m.`is_active` = 1;
+
+-- Normal user only gets desktop + meeting menus + prompt config
+DELETE p
+FROM `sys_role_menu_permissions` p
+JOIN `sys_menus` m ON m.`menu_id` = p.`menu_id`
+WHERE p.`role_id` = 2
+  AND m.`menu_code` NOT IN ('desktop', 'meeting_manage', 'meeting_center', 'prompt_config');
+
+INSERT IGNORE INTO `sys_role_menu_permissions` (`role_id`, `menu_id`, `granted_by`, `granted_at`)
+SELECT 2, m.`menu_id`, 1, NOW()
+FROM `sys_menus` m
+WHERE m.`menu_code` IN ('desktop', 'meeting_manage', 'meeting_center', 'prompt_config')
+  AND m.`is_active` = 1;
+
+-- ----------------------------------------------------------------------
+-- 8. Recreate compatibility views
+-- ----------------------------------------------------------------------
+DROP VIEW IF EXISTS `users`;
+DROP VIEW IF EXISTS `roles`;
+DROP VIEW IF EXISTS `menus`;
+DROP VIEW IF EXISTS `role_menu_permissions`;
+DROP VIEW IF EXISTS `dict_data`;
+DROP VIEW IF EXISTS `system_parameters`;
+
+CREATE VIEW `users` AS SELECT * FROM `sys_users`;
+CREATE VIEW `roles` AS SELECT * FROM `sys_roles`;
+CREATE VIEW `menus` AS SELECT * FROM `sys_menus`;
+CREATE VIEW `role_menu_permissions` AS SELECT * FROM `sys_role_menu_permissions`;
+CREATE VIEW `dict_data` AS SELECT * FROM `sys_dict_data`;
+CREATE VIEW `system_parameters` AS SELECT * FROM `sys_system_parameters`;
diff --git a/docs/imeeting_qy_upgrade_report_20260403.md b/docs/imeeting_qy_upgrade_report_20260403.md
new file mode 100644
index 0000000..fa11083
--- /dev/null
+++ b/docs/imeeting_qy_upgrade_report_20260403.md
@@ -0,0 +1,129 @@
+# iMeeting `imeeting_qy` 数据库升级报告
+
+## 1. 升级目标
+
+- 源旧库：`imeeting_qy`
+- 对标最新结构库：`imeeting`
+- 升级日期：`2026-04-03`
+- 执行方式：先在临时测试库 `imeeting_qy_upgrade_test` 演练，再正式执行到 `imeeting_qy`
+
+## 2. 备份信息
+
+- 正式升级前已创建完整备份库：`imeeting_qy_backup_20260403_004354`
+- 备份方式：同服务器整库复制全部 `BASE TABLE`
+
+## 3. 本次执行内容
+
+本次升级使用迁移脚本：
+
+- `backend/sql/migrations/upgrade_imeeting_qy_to_latest.sql`
+
+核心动作如下：
+
+1. 将旧系统表标准化为 `sys_*` 体系：
+   - `users -> sys_users`
+   - `roles -> sys_roles`
+   - `menus -> sys_menus`
+   - `role_menu_permissions -> sys_role_menu_permissions`
+   - `dict_data -> sys_dict_data`
+
+2. 重建兼容视图：
+   - `users`
+   - `roles`
+   - `menus`
+   - `role_menu_permissions`
+   - `dict_data`
+   - `system_parameters`
+
+3. 对齐旧系统表字段与索引：
+   - `sys_users` 补齐 `idx_role_id`
+   - `sys_roles` 补齐 `uk_role_name`
+   - `sys_menus` 补齐 `menu_level/tree_path/is_visible` 及相关索引
+   - `sys_role_menu_permissions` 补齐 `granted_by/granted_at` 及相关索引
+   - `prompts` 补齐 `is_system` 字段及组合索引
+   - `terminals.current_user_id` 字段注释对齐到最新结构
+
+4. 新增并初始化最新配置表：
+   - `sys_system_parameters`
+   - `ai_model_configs`
+   - `llm_model_config`
+   - `audio_model_config`
+   - `hot_word_group`
+   - `hot_word_item`
+   - `prompt_config`
+   - `sys_user_mcp`
+
+5. 迁移旧配置数据：
+   - 从 `sys_dict_data(dict_type='system_config')` 迁移系统参数到 `sys_system_parameters`
+   - 迁移 LLM / ASR / 声纹配置到 `ai_model_configs`
+   - 拆分生成 `llm_model_config`、`audio_model_config`
+   - 从旧 `hot_words` 迁移到 `hot_word_group` / `hot_word_item`
+
+6. 重建最新菜单树与角色授权模型：
+   - 新增 `dashboard`、`desktop`、`meeting_manage`、`system_management` 等最新菜单结构
+   - 规范平台管理、系统管理、会议管理三套菜单层级
+   - 管理员角色授予全部启用菜单
+   - 普通用户保留 `desktop/meeting_manage/meeting_center/prompt_config`
+
+## 4. 升级结果
+
+升级后关键表数据如下：
+
+| 表名 | 行数 |
+|---|---:|
+| `sys_users` | 44 |
+| `sys_roles` | 2 |
+| `sys_menus` | 19 |
+| `sys_role_menu_permissions` | 22 |
+| `sys_system_parameters` | 4 |
+| `ai_model_configs` | 3 |
+| `llm_model_config` | 1 |
+| `audio_model_config` | 2 |
+| `hot_word_group` | 1 |
+| `hot_word_item` | 20 |
+| `prompt_config` | 0 |
+| `sys_user_mcp` | 0 |
+
+迁移后的系统参数：
+
+| 参数键 | 参数值 |
+|---|---|
+| `asr_vocabulary_id` | `vocab-imeeting-734e93f5bd8a4f3bb665dd526d584516` |
+| `default_reset_password` | `123456` |
+| `max_audio_size` | `500` |
+| `timeline_pagesize` | `20` |
+
+迁移后的模型配置：
+
+- `llm_model_config`：1 条默认模型，`model_code=llm_model`
+- `audio_model_config`：2 条配置
+  - `audio_model` / `asr`
+  - `voiceprint_model` / `voiceprint`
+
+迁移后的热词配置：
+
+- `hot_word_group`：1 个默认热词组
+- `hot_word_item`：20 条热词条目
+
+## 5. 角色菜单结果
+
+- 平台管理员：
+  - `dashboard, hot_word_management, user_management, meeting_center, desktop, meeting_manage, model_management, permission_management, prompt_config, prompt_management, platform_admin, dict_management, system_management, client_management, external_app_management, terminal_management, parameter_management, permission_menu_tree`
+
+- 普通用户：
+  - `meeting_center, desktop, meeting_manage, prompt_config`
+
+## 6. 结构校验结论
+
+对 `imeeting_qy` 与 `imeeting` 进行了 `information_schema.tables` + `information_schema.columns` 级别的最终校验，结果如下：
+
+- 缺失表：`0`
+- 多余表：`0`
+- 表类型差异：`0`
+- 字段差异：`0`
+
+结论：
+
+- `imeeting_qy` 已完成升级
+- 当前库结构已与 `imeeting` 对齐
+- 本次升级为“结构对齐 + 必要配置数据迁移”，未删除旧业务数据