Release v5.18.1

• docs: bump version references to 5.18.1 (Dries Peeters)
• fix idle regressions after #779/#781 and run releases only on version tags (Dries Peeters)
• test(idle): cover idle-response semantics (first-answer-wins, tokens, credit math) (Giorgio)
• refactor(mobile): mobile app follows the server-authoritative idle check (#722) (Giorgio)
• fix(mobile): make idle prompt notification actionable on Android (Giorgio)
• feat(idle): server-authoritative Still working? protocol (#722) (Giorgio)
• fix(timer): render Confirm Changes summary as HTML in edit dialog (#777) (Giorgio)
• fix(server): stop single eventlet worker from wedging on DB waits (Giorgio)
• Gusto: send X-Gusto-API-Version on API requests (Taulant Shatri)
• Fix Railyard badge link case in README (Dries Peeters)
• chore(deps): bump source-map-js (dependabot[bot])
• chore(deps): bump werkzeug (dependabot[bot])
• Add Deploy to Railyard button (almokhtar-oss)
• chore(deps): bump the npm_and_yarn group across 1 directory with 5 updates (dependabot[bot])

📦 Build Status

Desktop Applications

✅ Windows build: Success
✅ Linux build: Success
✅ macOS build: Success

Mobile Applications

✅ Android build: Success
✅ iOS build: Success