v0.2.2 — Admin Dashboard: LaTeX Inspector & GCP Log Viewer

What's New

🔬 LaTeX Inspector Tab

• Side-by-side viewer: Compare original English and translated Chinese LaTeX source code with synchronized line numbers
• File tree sidebar: Browse all .tex files for any paper with status indicators (original/translated)
• Paper selector: Searchable grid of all translated papers with translation status badges
• One-click download: Download the entire LaTeX package as .tar.gz archive for offline debugging
• Copy-to-clipboard: Quick copy for either original or translated panel content

📊 GCP Logs Tab

• Terminal-style viewer: Dark-themed log display with severity-coded badges (ERROR/WARNING/INFO)
• Service toggle: Switch between backend and frontend Cloud Run services
• Smart filtering: Filter by severity level, time range (1h to 7d), and result limit (50-500)
• Auto-refresh: Toggle 30-second polling for real-time monitoring
• Expandable messages: Collapse/expand long log entries for cleaner viewing

🛠️ Infrastructure

• Proxy route updated to stream application/gzip responses for tar downloads
• Backend admin endpoints for tex file listing, content retrieval, tar archive generation, and GCP Cloud Logging queries

Full Changelog: v0.2.1...v0.2.2