修复 session_id 回绕导致的迟到事件误匹配

[H-Chris233]

User description

概述

• 将 coordinator 内部听写 / QA session 守卫从 wrapping u64 改为 UUID
• 保留原有 captured session id 比较逻辑，避免迟到 RecorderError / startup continuation 误命中新会话
• 同步更新 Windows IME 预备会话槽和相关回归测试里的 session id 类型

验证

• cargo check --manifest-path openless-all/app/src-tauri/Cargo.toml
• cargo test --manifest-path openless-all/app/src-tauri/Cargo.toml coordinator::tests:: --lib
• git diff --check

说明

• 额外跑过 cargo test --manifest-path openless-all/app/src-tauri/Cargo.toml --lib，当前 beta 上存在无关失败：types::tests::legacy_hotkey_trigger_still_produces_effective_key_codes。本 PR 未修改 types.rs。

Closes #297

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PR Type

Bug fix

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Description

• Replace wrapping u64 session_id with UUID (Uuid::new_v4)

• Update all state structs and helpers to SessionId type

• Adapt Windows IME prepared session slots and comparison logic

• Update unit tests to use UUID-based session ids

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Diagram Walkthrough

flowchart LR
  Old["u64 wrapping_add session_id\n(risk of stale-event collision)"] --> New["UUID-based session_id\n(Uuid::new_v4)"]
  New --> State["State structs (SessionState, QaSessionState)"]
  New --> Resource["SessionResource"]
  New --> Helper["take_session_resource, etc."]
  New --> WinIME["Windows IME slots"]
  New --> Tests["Test helpers use session_id(n)"]

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File Walkthrough

Relevant files

Bug fix

coordinator.rs Replace u64 session_id with UUID across coordinator            openless-all/app/src-tauri/src/coordinator.rs Define SessionId type alias and factory functions new_session_id(), initial_session_id() Change session_id field type in SessionResource, SessionState, QaSessionState, and PreparedWindowsImeSessionSlot to SessionId Update all related function signatures, comparisons, and logic to use SessionId Adapt unit tests: add session_id(n) helper, replace integer literals with UUID-based ids +98/-60

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

🎫 Ticket compliance analysis 🔶 297 - Partially compliant Compliant requirements: Replaced session ids with UUIDs. Preserved session-id equality checks for late-event / startup-race handling. Updated Windows IME prepared-session helpers and related tests to use UUID session ids. Added/updated regression tests for stale-session isolation. Non-compliant requirements: None identified from the diff. Requires further human verification: None.

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🧪 PR contains tests

🔒 No security concerns identified

⚡ No major issues detected