Fix CodeQL security vulnerabilities and lint issues#77
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## Security Fixes | Vulnerability | Severity | Location | Fix | |--------------|----------|----------|-----| | SSRF | Critical | crawler/master.py | Added `is_safe_url()` validation | | XML Bomb | High | crawler/master.py | Replaced `xml.etree` with `defusedxml` | | Path Injection | High | frontend/chat-app/bin/nlweb-chat.mjs | Use `resolve()` with proper boundary check | | Double Escaping | High | ChatSearch.tsx | Move `&` decoding to last | | Clear-text Logging | High | create_test_user.py | Mask API keys in output | | Stack Trace Exposure | Medium | api.py, SSE interfaces | Return generic error messages | | Workflow Permissions | Medium | check.yml | Add explicit `permissions: contents: read` | 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Resolve conflicts in SSE handlers while preserving both: - Security fix: use logger.exception() instead of exposing stack traces - Main branch improvement: handle mid-stream errors gracefully 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Security Fixes
contents: readNew Features
Documentation
Test Plan
🤖 Generated with Claude Code
Co-Authored-By: Claude noreply@anthropic.com