[Feat]: 实现 MySQL Event 管理及编辑查看功能

[onceMisery]

变更说明

• 增加 MySQL Event 元数据查询与详情接口。
• 支持 Event 的创建、编辑、删除、刷新和查看。

变更类型

• 新功能
• Bug 修复
• 性能优化
• 代码重构
• 文档更新
• CI / 构建

涉及前端

• 本 PR 涉及前端改动，已附截图/录屏（见下方）

验证

• make check 通过
• make cargo-check-fast 通过
• 相关测试通过

关联 Issue

#4845

[github-actions]

🌐 I18n autofill completed

✅ Added translations for 22 new zh-CN i18n keys.

Locale	Added entries
es	3
it	3
ja	3
pt-BR	3
zh-TW	3

[t8y2]

Maintainer patch applied after rebasing the contribution onto origin/main at 4e09b007c0112d6a733aead75a0f618e66153694.

• Previous head: ebc0c5d817ec15223905d6488bc5419f590c8332
• New head: 5fda26670df1a52415a55045f21b4d0dc7a47a5d
• The only rebase conflict was the pt-BR i18n block: main had added database-rename strings while this PR added MySQL event strings. Both sets were preserved; no feature behavior was discarded.
• Added positive-integer validation for EVERY interval values in both the frontend SQL builder and Rust SQL builder, with regression cases for empty, zero, non-numeric, and SQL-injection-shaped values. Existing valid units and SQL output remain unchanged.

Validation on the new head: MySQL event Vitest 3/3, pnpm typecheck, cargo test -p dbx-core mysql_event_sql --no-default-features 4 passed, conflict-marker scan, and git diff --check.

[t8y2]

Maintainer patch follow-up on the exact head.

• Previous pushed head: 5fda26670df1a52415a55045f21b4d0dc7a47a5d
• Current head: 20320b82d0337533e5ec8c6eb2f7799614b6283e
• Added only the Rust formatting required by the CI rust-fmt-clippy job; no behavior changed.

Validation on the current head: rustfmt --check crates/dbx-core/src/mysql_event_sql.rs, cargo test -p dbx-core mysql_event_sql --no-default-features (4 passed), plus the previously recorded frontend Vitest (3/3), pnpm typecheck, conflict-marker scan, and git diff --check.

[t8y2]

Maintainer completion note for the current exact head.

• Previous pushed head: 82d1ac51b2944c83660660b8996114f1b210fc0c
• Current head: 8f6d6102343558ca89b32216db73f2131a7e8a19
• Rebased onto origin/main 701f188e4594fa628af5b17d403389e190939625 without conflicts.
• The final follow-up only formats the pt-BR translation file required by the frontend CI formatter; behavior is unchanged.

Local validation on this head: frontend oxfmt --check, MySQL event Vitest 3/3, pnpm typecheck, rustfmt --check for the event SQL module, cargo test -p dbx-core mysql_event_sql --no-default-features (4 passed), conflict-marker scan, and git diff --check.

[t8y2]

Reviewed exact head 8f6d610; approved for squash merge.

[t8y2]

Thanks for the contribution! Merged in d8bc515, will be released in the next version.