* fix(security): harden SVG sanitizer, rate limiting, and analytics defaults
- SVG: add control-char stripping in href values to block whitespace/null-byte
obfuscated javascript: URIs; block <feImage> with external href (SSRF via
SVG filter primitives); expand test suite to 32 inline bypass payloads
- Rate limiting: add per-route limits on tool endpoints (60/min) and batch
(20/min); fix compose files defaulting RATE_LIMIT_PER_MIN to 0 which mapped
to 50,000 in code; simplify rate limit registration to use env.ts default
- Analytics: default ANALYTICS_ENABLED to false so self-hosters do not
unknowingly send telemetry
- Docker: add --max-time 5 and -s flags to compose healthcheck curl commands
* fix: remove stale login limit bypass, reduce error log noise, clean up fixtures
- Fix getLoginAttemptLimit() ignoring LOGIN_ATTEMPT_LIMIT when global rate
limit exceeded 1000/min, which let the global limit override the stricter
per-route login brute-force protection
- Downgrade rate limit 429 responses from error to warn level in the global
error handler to avoid log noise and unnecessary Sentry reports
- Log 4xx client errors at warn level instead of error level
- Remove 11 orphaned SVG attack fixture files replaced by inline test payloads
SnapOtter