持久化设备留言待收听状态并支持重启恢复

mini-program/database/init.sql

@@ -190,6 +190,28 @@ CREATE TABLE IF NOT EXISTS im_messages (
 CREATE INDEX idx_im_msg_sender ON im_messages(sender_type, sender_id, created_at);
 CREATE INDEX idx_im_msg_receiver ON im_messages(receiver_type, receiver_id, created_at);
 
+-- device_pending_voice_messages
+CREATE TABLE IF NOT EXISTS device_pending_voice_messages (
+    id BIGINT PRIMARY KEY AUTO_INCREMENT,
+    target_device_id VARCHAR(64) NOT NULL,
+    sender_device_id VARCHAR(64),
+    im_message_id BIGINT NOT NULL,
+    media_file_key VARCHAR(255) NOT NULL,
+    audio_url VARCHAR(512),
+    source VARCHAR(32) NOT NULL DEFAULT 'unknown',
+    status VARCHAR(32) NOT NULL DEFAULT 'pending',
+    delivery_count INT NOT NULL DEFAULT 0,
+    delivered_at DATETIME,
+    listened_at DATETIME,
+    created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT uq_device_pending_voice_target_msg UNIQUE (target_device_id, im_message_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE INDEX idx_device_pending_voice_target_status_created ON device_pending_voice_messages(target_device_id, status, created_at);
+CREATE INDEX idx_device_pending_voice_sender ON device_pending_voice_messages(sender_device_id);
+CREATE INDEX idx_device_pending_voice_im_message ON device_pending_voice_messages(im_message_id);
+
 -- child_location_current
 CREATE TABLE IF NOT EXISTS child_location_current (
     child_id BIGINT UNSIGNED PRIMARY KEY,