fix: match new 7-Zip "Cannot" output for missing volume

[LiHua000]

1. Root cause: readListLine() hardcoded "Can not" (two words) from old p7zip; new 7-Zip 26.02 outputs "Cannot" (one word), so the check failed and the corrupt-archive dialog appeared instead of a direct error
2. Fix: add a parallel startsWith branch for "Cannot" while keeping the original "Can not" match, so both old p7zip and new 7-Zip are handled
3. Impact: only the missing-volume error detection in readListLine() changes; existing behavior for old p7zip is preserved

Log: fix missing-volume detection to support new 7-Zip 26.02 output

Influence:

1. Test opening a 7z split archive with a missing volume using new 7-Zip 26.02 — should show "damaged" error directly
2. Test the same scenario with old p7zip 16.02 — behavior unchanged
3. Test opening a normal complete 7z archive — no regression

fix: 兼容新版7-Zip分卷缺失时的"Cannot"输出

1. 根因：readListLine() 硬编码旧版 p7zip 输出的 "Can not"（两个单词）， 新版 7-Zip 26.02 改为 "Cannot"（一个单词），匹配失败后走了 corrupt 对话框路径而非直接报错
2. 方案：追加 "Cannot" 的 startsWith 匹配分支，保留原有 "Can not" 匹配， 兼容旧版 p7zip 与新版 7-Zip
3. 影响：仅 readListLine() 中分卷缺失错误检测逻辑变化，旧版 p7zip 行为 保持不变

Log: 修复分卷缺失检测以支持新版7-Zip 26.02输出

Influence:

1. 使用新版 7-Zip 26.02 打开分卷缺失的 7z 压缩包，验证直接提示"损坏"
2. 使用旧版 p7zip 16.02 打开分卷缺失的 7z 压缩包，验证行为不变
3. 正常打开完整的 7z 压缩包，验证无回归

PMS: BUG-376699

Summary by Sourcery

Bug Fixes:

• Fix missing-volume detection for 7z archives by recognizing the updated “Cannot” error output from newer 7-Zip versions while preserving support for older p7zip output.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates Cli7zPlugin::readListLine() to detect missing 7z volumes from both old p7zip and 7-Zip 26.02 output, preserving legacy behavior while preventing the newer message from falling through to the corrupt-archive dialog path.

Flow diagram for missing 7z volume error detection

flowchart TD
    A["readListLine(line)"] --> B{"line starts with old or new missing-volume message?"}
    B -->|"Can not"| C["Set m_eErrorType to ET_ArchiveDamaged"]
    B -->|"Cannot"| C
    C --> D["Set m_finishType to PFT_Error"]
    D --> E["Return false"]
    B -->|"No match"| F["Continue existing line processing"]

Loading

File-Level Changes

Change	Details	Files
Extend missing-volume error detection to recognize both legacy and current 7-Zip wording.	Add a parallel prefix match for Cannot while retaining the existing Can not match. Route either recognized message through the existing damaged-archive error path.	3rdparty/cli7zplugin/cli7zplugin.cpp

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: LiHua000, max-lvs

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[LiHua000]

/merge