- Remove "来源/分类" (category.php) link from main navigation
- Relocate "cppreference" to end of menu, after contest-related items
- Add conditional "AI 聊天" section using `$OJ_AI_HTML` variable
- Update LLM model from `MiniMax-M2.7` to `MiniMax-M3` in db_info.inc.php
- Fix trailing whitespace in header.php template
- Restore nickname field in modify.php SQL update query
- Remove disabled attribute from nickname input in modifypage.php template
- Allow users to update their nickname through profile modification
- Maintain existing HTML entity encoding for security
Add a copy button to markdown code blocks in the problem view for easier code snippet copying. The button appears in the top-right corner of code blocks and provides visual feedback on copy success or failure. This improves user experience by eliminating the need to manually select and copy code.
- Increase min-height and line-height to 32px for consistent sizing
- Remove top and bottom padding to improve vertical centering
- Maintain existing width and margin properties
- Replace custom semantic-ui dropdown component with standard HTML select element
- Simplify JavaScript by using native event listener instead of semantic-ui dropdown API
- Remove unnecessary dropdown initialization and selection setting code
- Maintain same functionality while reducing complexity and dependency on semantic-ui
- Replace synchronous git pull execution with background job system
- Add AJAX endpoints for starting and monitoring git pull operations
- Implement process tracking using PID files and exit code files
- Add real-time log display with tail reading functionality
- Improve user experience with non-blocking UI and status updates
- Maintain backward compatibility with existing sudo permissions setup
- Remove hardcoded sudo username and password from gitpull.php
- Switch to using `sudo git pull` with NOPASSWD sudoers configuration
- Add helpful error message with setup instructions when git pull fails
- Improve security by eliminating password storage in source code
