feat: persist log viewer tail lines setting to localStorage

[Copilot]

• Analyze the current log viewer implementation
• Understand how other settings like word-wrap, theme, and font-size are saved to localStorage
• Confirm the issue: tailLines is hardcoded to 100 and not persisted to localStorage
• Set up build environment and validate current code works
• Implement tailLines localStorage persistence similar to existing pattern
• Add handler function for tailLines changes
• Test the changes to ensure they work properly
• Take screenshot to demonstrate the feature working
• Final validation that application compiles and runs correctly
• Remove package-lock.json file (project uses pnpm)
• Add package-lock.json to .gitignore to prevent future issues

Summary

Successfully implemented localStorage persistence for the log viewer tail lines setting to address the user experience issue where users had to adjust the display line count every time they viewed logs.

Implementation Details

Problem: The tail lines setting (日志默认显示行数) was hardcoded to 100 and not persisted, requiring users to adjust it manually each time.

Solution: Added localStorage persistence following the same pattern used by other log viewer settings:

1. State Initialization: Modified to read from localStorage.getItem('log-viewer-tail-lines') with fallback to 100
2. Handler Function: Added handleTailLinesChange that updates both state and localStorage
3. UI Integration: Updated the Select component to use the new handler

Key Features:

• ✅ Persists user's preferred tail lines setting across browser sessions
• ✅ Maintains backward compatibility with default value of 100
• ✅ Follows existing codebase patterns for consistency
• ✅ No breaking changes to existing functionality
• ✅ Minimal code changes (11 lines added, 2 modified)
• ✅ Removed unnecessary package-lock.json (project uses pnpm)
• ✅ Added package-lock.json to .gitignore

Testing: Validated through type checking, linting, building, and localStorage functionality testing. The implementation correctly saves and retrieves values, solving the user experience issue.

Original prompt

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This section details on the original issue you should resolve

<issue_title>日志默认显示行数 100，能否调大一些？</issue_title>
<issue_description>日志默认显示行数 100，几乎每次查看日志，都需要去调整显示行数，体验上不是很好。
</issue_description>

<agent_instructions>把 日志行数的设置也存进 localStorage 里</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@zxh326 可以把行数的设置也存下来

Fixes #156

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[zxh326]

@copilot do not add ui/package-lock.json. we use pnpm

[Copilot]

@copilot do not add ui/package-lock.json. we use pnpm

Removed ui/package-lock.json and added it to .gitignore since the project uses pnpm. The file has been deleted and will not be committed in future changes. (91f795e)