StreamTanks v0.3.1 — Security Hardening, Claim Protection & Go Modernization

Changelog

• bc0130e Fix: Resolve golangci-lint issues across scenariolab and engine refactor (Fixes #85)
• ce91d83 fix(security): sanitize quotes in escapeHtml to prevent attribute injection XSS (Fixes #88)
• 6983300 fix: prevent channel claim overwrite and token deletion on reconnect (Fixes #86)