feat: migrate IM identity and snowflake primary keys

docs/IM-第一至七章数据库增量审核.sql

@@ -3,6 +3,7 @@
 -- 适用目标：已有 Tinode MySQL 库，补齐本项目 1-7 章业务层依赖表与关键字段。
 -- 注意：本稿使用 MySQL 8 functional index 处理空 idempotency_key 唯一性。
 -- 第一阶段多库方案：本 SQL 的 im_tenant 放 hotgo 公共库；tinode/各租户业务库表暂时保留 tenant_id 字段。
+-- 本文件中的非自增 BIGINT 主键由服务端雪花算法生成。
 
 SET NAMES utf8mb4;
 
@@ -79,13 +80,15 @@ CREATE TABLE IF NOT EXISTS im_verification_codes(
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
 
 CREATE TABLE IF NOT EXISTS im_user_security(
+	id                  BIGINT NOT NULL,
 	tenant_id           BIGINT NOT NULL,
 	user_id             BIGINT NOT NULL,
 	auth_version        INT NOT NULL DEFAULT 1,
 	password_updated_at DATETIME(3),
 	created_at          DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
 	updated_at          DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
-	PRIMARY KEY(tenant_id,user_id),
+	PRIMARY KEY(id),
+	UNIQUE INDEX uk_im_user_security_tenant_user(tenant_id,user_id),
 	CONSTRAINT fk_im_user_security_tenant FOREIGN KEY(tenant_id) REFERENCES im_tenant(id) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
 
@@ -132,6 +135,7 @@ CREATE TABLE IF NOT EXISTS im_action_tokens(
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
 
 CREATE TABLE IF NOT EXISTS im_youth_mode_settings(
+	id                BIGINT NOT NULL,
 	tenant_id       BIGINT NOT NULL,
 	user_id         BIGINT NOT NULL,
 	purpose         VARCHAR(64) NOT NULL,
@@ -140,7 +144,8 @@ CREATE TABLE IF NOT EXISTS im_youth_mode_settings(
 	locked_until    DATETIME(3),
 	created_at      DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
 	updated_at      DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
-	PRIMARY KEY(tenant_id, user_id, purpose),
+	PRIMARY KEY(id),
+	UNIQUE INDEX uk_im_youth_settings_tenant_user_purpose(tenant_id, user_id, purpose),
 	CONSTRAINT fk_im_youth_settings_tenant FOREIGN KEY(tenant_id) REFERENCES im_tenant(id) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
 
@@ -192,6 +197,7 @@ CREATE UNIQUE INDEX uk_im_friend_requests_idempotency
 	ON im_friend_requests(tenant_id, applicant_id, (NULLIF(idempotency_key, '')));
 
 CREATE TABLE IF NOT EXISTS im_friendships(
+	id          BIGINT NOT NULL,
 	tenant_id   BIGINT NOT NULL,
 	user_id     BIGINT NOT NULL,
 	peer_id     BIGINT NOT NULL,
@@ -200,18 +206,21 @@ CREATE TABLE IF NOT EXISTS im_friendships(
 	topic       CHAR(25) NOT NULL DEFAULT '',
 	created_at  DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
 	updated_at  DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
-	PRIMARY KEY(tenant_id, user_id, peer_id),
+	PRIMARY KEY(id),
+	UNIQUE INDEX uk_im_friendships_tenant_pair(tenant_id, user_id, peer_id),
 	INDEX idx_im_friendships_peer(tenant_id, peer_id, status),
 	CONSTRAINT fk_im_friendships_tenant FOREIGN KEY(tenant_id) REFERENCES im_tenant(id) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
 
 CREATE TABLE IF NOT EXISTS im_user_blocks(
+	id          BIGINT NOT NULL,
 	tenant_id   BIGINT NOT NULL,
 	blocker_id  BIGINT NOT NULL,
 	blocked_id  BIGINT NOT NULL,
 	created_at  DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
 	updated_at  DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
-	PRIMARY KEY(tenant_id, blocker_id, blocked_id),
+	PRIMARY KEY(id),
+	UNIQUE INDEX uk_im_user_blocks_tenant_pair(tenant_id, blocker_id, blocked_id),
 	INDEX idx_im_user_blocks_blocked(tenant_id, blocked_id),
 	CONSTRAINT fk_im_user_blocks_tenant FOREIGN KEY(tenant_id) REFERENCES im_tenant(id) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
@@ -312,5 +321,6 @@ CREATE TABLE IF NOT EXISTS im_message_revisions(
 -- ALTER TABLE im_filemsglinks ADD COLUMN userid BIGINT AFTER topic;
 -- CREATE INDEX im_filemsglinks_tenant_fileid ON im_filemsglinks(tenant_id, fileid);
 
--- im_usertags/im_topictags/im_devices/im_auth/im_credentials 也已按租户增加 tenant_id；
+-- im_usertags 已废弃；im_users.phone 是手机号真源，邮箱存放于 im_user_profiles.email。
+-- im_topictags/im_devices/im_auth/im_credentials 也已按租户增加 tenant_id；
 -- 若旧库缺字段，需要参照当前 server/db/mysql/schema.sql 逐项补齐。