Security fixes: headers, bcrypt, error sanitization, xlsx replacement #16
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Codecov Report❌ Patch coverage is @@ Coverage Diff @@
## main #16 +/- ##
==========================================
+ Coverage 68.80% 68.83% +0.02%
==========================================
Files 70 72 +2
Lines 10480 10499 +19
==========================================
+ Hits 7211 7227 +16
- Misses 2976 2978 +2
- Partials 293 294 +1
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Adds X-Frame-Options, X-Content-Type-Options, X-XSS-Protection, Referrer-Policy, and Permissions-Policy headers to all API responses. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Improves password hashing strength against brute-force attacks. New cost factor is 4x slower to compute (2^12 vs 2^10 iterations). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Fixes CVE prototype pollution and ReDoS vulnerabilities in xlsx package. exceljs provides equivalent functionality with active maintenance. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Prevents leaking internal details (SQL errors, file paths, IP addresses) in 5xx error responses. Validation errors remain user-friendly. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Documents all environment variables with descriptions and defaults. Helps new developers understand required vs optional configuration. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
Test Plan
🤖 Generated with Claude Code