v1.1.0: Portable SmartScraper

Added

• Portable Package Export: Download scrapers as ZIP files (/download endpoint).
• Auto-Dependency Management: Generated scrapers now include PEP 723 metadata for uv run support and a fallback venv setup.
• Task Scheduler Integration: setup_task.bat and PowerShell script to register daily scraper tasks on Windows.
• PTT Gossiping Support: Updated default example to handle landing pages like PTT.
• Filename Parsing: Frontend now correctly extracts dynamic filenames from headers.

Changed

• UI Overhaul: Migrated to a professional dark theme.
• README: Rewritten to focus on engineering workflow and architecture.
• Sandbox: Enhanced import security whitelist (e.g., urllib.parse submodules).

Fixed

• Batch Script Syntax: Fixed run.bat crashing due to parenthesis parsing in echo commands.
• Download Filename: Fixed issue where downloads had UUID filenames without extensions.