8 new tests: unicode/emoji/diacritics in bot names rejected, special
chars rejected, same webhook URL allowed, pubkey hex validation,
missing required fields rejected.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add sanitizeError() helper that strips file paths, stack traces, SQLite
errors, and system errors from messages before returning them to clients.
Applied to all route-level catch blocks in payments, queue, fights, and
admin routes. Includes 12 tests for the sanitizer and static analysis
test verifying no route files leak raw err.message.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Create server/src/lib/validators.ts with reusable schemas for all API
inputs (auth, fights, bets, payments, tournaments, queue, docs).
Import and use in all route handlers, replacing inline validation.
Add formatZodError helper for user-friendly error messages.
77 test cases in validators.test.ts cover valid, invalid, boundary,
and attack inputs (SQL injection, XSS, prototype pollution).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
