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feat: 支持智能体文档附件与轻量读取

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- 建立文档上传、异步读取、对象存储、补偿与聊天绑定闭环

- 按智能体 20K 上下文预算选择文档片段并保留稳定引用

- 统一聊天文件卡片、类型图标、草稿恢复与可靠下载
This commit is contained in:
陈子默
2026-07-29 01:32:19 +08:00
parent fceedd02cd
commit d45c67a317
72 changed files with 5876 additions and 237 deletions
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61
easyflow-starter/easyflow-starter-all/src/main/resources/db/migration/mysql/V36__mysql_agent_document_attachment.sql Normal file
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CREATE TABLE IF NOT EXISTS `tb_agent_document_attachment` (
`id` BIGINT NOT NULL COMMENT 'ID',
`attachment_id` VARCHAR(64) NOT NULL COMMENT '稳定附件ID',
`upload_id` VARCHAR(64) NOT NULL COMMENT '临时上传ID',
`tenant_id` BIGINT NOT NULL COMMENT '租户ID',
`user_id` BIGINT NOT NULL COMMENT '上传用户ID',
`agent_id` BIGINT NOT NULL COMMENT 'Agent ID',
`mode` VARCHAR(16) NOT NULL COMMENT '聊天模式',
`session_id` VARCHAR(128) NOT NULL COMMENT '聊天会话ID',
`message_id` VARCHAR(64) NULL COMMENT '绑定消息ID',
`original_name` VARCHAR(255) NOT NULL COMMENT '原始文件名',
`extension` VARCHAR(16) NOT NULL COMMENT '扩展名',
`mime_type` VARCHAR(128) NOT NULL COMMENT 'MIME类型',
`file_size` BIGINT NOT NULL COMMENT '文件字节数',
`file_sha256` CHAR(64) NULL COMMENT '文件SHA-256',
`object_key` VARCHAR(512) NOT NULL COMMENT '私有原文件对象键',
`status` VARCHAR(32) NOT NULL COMMENT '附件状态',
`current_snapshot_id` VARCHAR(64) NULL COMMENT '当前读取快照ID',
`error_code` VARCHAR(64) NULL COMMENT '错误码',
`error_message` VARCHAR(1024) NULL COMMENT '可执行错误消息',
`expires_at` DATETIME NULL COMMENT '临时附件过期时间',
`version` BIGINT NOT NULL DEFAULT 0 COMMENT '乐观版本号',
`created` DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
`created_by` BIGINT NULL COMMENT '创建人',
`modified` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改时间',
`modified_by` BIGINT NULL COMMENT '修改人',
PRIMARY KEY (`id`),
UNIQUE KEY `uk_agent_document_attachment_id` (`attachment_id`),
UNIQUE KEY `uk_agent_document_upload_id` (`upload_id`),
UNIQUE KEY `uk_agent_document_message_attachment` (`message_id`, `attachment_id`),
KEY `idx_agent_document_owner_upload` (`tenant_id`, `user_id`, `upload_id`),
KEY `idx_agent_document_scope` (`tenant_id`, `user_id`, `agent_id`, `mode`, `session_id`),
KEY `idx_agent_document_status_modified` (`status`, `modified`),
KEY `idx_agent_document_expiry_status` (`expires_at`, `status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Agent 文档附件状态账本';
CREATE TABLE IF NOT EXISTS `tb_agent_document_snapshot` (
`id` BIGINT NOT NULL COMMENT 'ID',
`read_snapshot_id` VARCHAR(64) NOT NULL COMMENT '读取快照ID',
`tenant_id` BIGINT NOT NULL COMMENT '租户ID',
`attachment_id` VARCHAR(64) NOT NULL COMMENT '稳定附件ID',
`file_sha256` CHAR(64) NOT NULL COMMENT '文件SHA-256',
`reader_version` VARCHAR(32) NOT NULL COMMENT '读取器版本',
`read_policy_version` VARCHAR(32) NOT NULL COMMENT '读取策略版本',
`snapshot_object_key` VARCHAR(512) NOT NULL COMMENT '私有快照对象键',
`char_count` INT NOT NULL COMMENT '字符数',
`token_estimate` INT NOT NULL COMMENT 'Token估算',
`segment_count` INT NOT NULL COMMENT '片段数',
`status` VARCHAR(32) NOT NULL COMMENT '快照状态',
`error_code` VARCHAR(64) NULL COMMENT '错误码',
`created` DATETIME DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
`created_by` BIGINT NULL COMMENT '创建人',
`modified` DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改时间',
`modified_by` BIGINT NULL COMMENT '修改人',
PRIMARY KEY (`id`),
UNIQUE KEY `uk_agent_document_snapshot_id` (`read_snapshot_id`),
UNIQUE KEY `uk_agent_document_snapshot_version`
(`attachment_id`, `file_sha256`, `reader_version`, `read_policy_version`),
KEY `idx_agent_document_snapshot_attachment` (`attachment_id`),
KEY `idx_agent_document_snapshot_status_modified` (`status`, `modified`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Agent 文档不可变读取快照';