<fix>[host]: filter out disks of type loop and rom

[zstack-robot-1]

Resolves: ZSV-10987

Change-Id: I7277616f7378676d696772796b766676766c706b

sync from gitlab !9020

[coderabbitai]

Walkthrough

更新 BlockDevicesParser 中获取分区表的命令管道，新增对设备类型的筛选以排除 loop 与 ROM 设备，并将缺失的分区表映射默认为空字符串，示例输出相应删去 loop/rom 设备条目。（约 33 字）

Changes

Cohort / File(s)	变更摘要
磁盘设备解析优化 header/src/main/java/org/zstack/header/host/BlockDevicesParser.java	在 getBlockDevicesCommand 的磁盘枚举管道中加入 `awk '$2!~/loop

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 分钟

诗

🐰 兔子轻跳去筛盘，
剔除回环与光盘寒，
分区清单更清晰，
代码小改心欢颜。

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	标题明确总结了主要变更：在主机组件中过滤掉loop和rom类型的磁盘，与代码摘要中的核心改动完全相符。
Description check	✅ Passed	描述与变更集相关联，引用了相关的问题编号和GitLab同步信息，虽然细节较少但足以表明这是一个主机组件的修复。

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✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8bf2048 and a7366cc.

📒 Files selected for processing (1)

• header/src/main/java/org/zstack/header/host/BlockDevicesParser.java

🚧 Files skipped from review as they are similar to previous changes (1)

• header/src/main/java/org/zstack/header/host/BlockDevicesParser.java

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