docs(studio): update guides and screenshots

[junlin-luo-spacemit]

Summary

• Update English and Chinese Studio quick start and user guide content
• Add App Store and key writing documentation with matching screenshots
• Refresh Studio UI screenshots and related device, flashing, and system tool references

Validation

• git diff --check passed
• Chinese and English documentation changes are kept in parallel

[github-actions]

📄 Bilingual Docs Check

✅ All changed files have both zh and en counterparts

Changed files in this PR

File	EN	ZH
studio/quick_start.md	✅	✅
studio/static/app_store.png	✅	✅
studio/static/app_store_00.png	✅	✅
studio/static/app_store_01.png	✅	✅
studio/static/device_00.png	✅	✅
studio/static/device_01.png	✅	✅
studio/static/device_03.png	✅	✅
studio/static/driver_00.png	✅	✅
studio/static/driver_01.png	✅	✅
studio/static/home.png	✅	✅
studio/static/key_write_00.png	✅	✅
studio/static/key_write_01.png	✅	✅
studio/static/key_write_02.png	✅	✅
studio/static/key_write_03.png	✅	✅
studio/static/systool_preconfig_01.png	✅	✅
studio/user_guide/app_store.md	✅	✅
studio/user_guide/dev_tools/flash.md	✅	✅
studio/user_guide/dev_tools/system_tools.md	✅	✅
studio/user_guide/devices.md	✅	✅

✅ updated in this PR   📁 exists but not updated   ❌ file missing

No parity issues detected. 🎉

---

This check is informational and does not block merging.

💡 Doc Engineering Suggestions

Up to 5 suggestions per language for changed files in this PR.

zh/studio/quick_start.md （中文）

• 部分表格缺少分隔行（|---|），可能导致渲染异常，请检查表格格式。
• 相对链接 ./user_guide/devices.md#新设备 指向的文件可能不存在，请检查路径是否正确。

zh/studio/user_guide/app_store.md （中文）

• 顶级章节后缺少引导性说明段落，建议在第一个小节前加一两句概述，帮助读者理解上下文。
• 文档内容较多但未使用任何提示框（如 > 注意：），对关键注意事项建议使用 blockquote 或 admonition 标注。

zh/studio/user_guide/dev_tools/flash.md （中文）

• 顶级章节后缺少引导性说明段落，建议在第一个小节前加一两句概述，帮助读者理解上下文。
• 文档内容较多但未使用任何提示框（如 > 注意：），对关键注意事项建议使用 blockquote 或 admonition 标注。
• 部分表格缺少分隔行（|---|），可能导致渲染异常，请检查表格格式。
• 相对链接 #前置条件 指向的文件可能不存在，请检查路径是否正确。

zh/studio/user_guide/dev_tools/system_tools.md （中文）

• 顶级章节后缺少引导性说明段落，建议在第一个小节前加一两句概述，帮助读者理解上下文。
• 文档内容较多但未使用任何提示框（如 > 注意：），对关键注意事项建议使用 blockquote 或 admonition 标注。

zh/studio/user_guide/devices.md （中文）

• 顶级章节后缺少引导性说明段落，建议在第一个小节前加一两句概述，帮助读者理解上下文。
• 文档内容较多但未使用任何提示框（如 > 注意：），对关键注意事项建议使用 blockquote 或 admonition 标注。
• 部分表格缺少分隔行（|---|），可能导致渲染异常，请检查表格格式。
• 相对链接 ./terminal.md#终端会话 指向的文件可能不存在，请检查路径是否正确。

en/studio/quick_start.md (English)

• No callouts (NOTE / WARNING / TIP) found in a multi-section document. Consider highlighting critical information with blockquotes or admonition syntax.
• A table appears to be missing its header separator row (|---|). This may cause rendering issues.
• Relative link ./user_guide/devices.md#new-device may point to a non-existent file. Please verify the path.

en/studio/user_guide/app_store.md (English)

• No introductory paragraph found before the first subsection. Add a brief overview to orient the reader.
• No callouts (NOTE / WARNING / TIP) found in a multi-section document. Consider highlighting critical information with blockquotes or admonition syntax.

en/studio/user_guide/dev_tools/flash.md (English)

• Some paragraphs are very long (>200 chars). Consider breaking them into shorter sentences or bullet lists for readability.
• No introductory paragraph found before the first subsection. Add a brief overview to orient the reader.
• No callouts (NOTE / WARNING / TIP) found in a multi-section document. Consider highlighting critical information with blockquotes or admonition syntax.
• A table appears to be missing its header separator row (|---|). This may cause rendering issues.
• Relative link #prerequisites may point to a non-existent file. Please verify the path.

en/studio/user_guide/dev_tools/system_tools.md (English)

• No introductory paragraph found before the first subsection. Add a brief overview to orient the reader.
• No callouts (NOTE / WARNING / TIP) found in a multi-section document. Consider highlighting critical information with blockquotes or admonition syntax.

en/studio/user_guide/devices.md (English)

• Some paragraphs are very long (>200 chars). Consider breaking them into shorter sentences or bullet lists for readability.
• No introductory paragraph found before the first subsection. Add a brief overview to orient the reader.
• No callouts (NOTE / WARNING / TIP) found in a multi-section document. Consider highlighting critical information with blockquotes or admonition syntax.
• A table appears to be missing its header separator row (|---|). This may cause rendering issues.
• Relative link ./terminal.md#terminal-sessions may point to a non-existent file. Please verify the path.