feat: add protocol filtering, TCP probe controls, and richer tunnel d…

[SaeedKolahi]

Summary

• Adds a configurable Protocol Filter in More Options so users can limit tunnel protocol candidates in direct/auto modes.
• Adds TCP Reachability Probe controls (enable/disable, skip-on-fail, boost, timeout) and wires them into tunnel configuration.
• Improves tunnel diagnostics and log UX by:
  • refining inproxy/conduit diagnostic parsing and emitted status lines,
  • adding "handshake pending" visibility,
  • adding Clear Logs and Save & Share Logs actions in the logs tab.
• Introduces TunnelNoticeSummaryBuilder + TunnelNoticeStatusEmitter and unit tests for notice summary/status behavior.

Why

These changes provide more control over connection strategy and improve observability during connection setup, helping users diagnose slow/failing handshakes and tune behavior for restrictive networks.

Test Plan

• Build app successfully (./gradlew assemble... as appropriate).
• Open More Options and verify:
  • Protocol Filter is visible and selectable.
  • TCP Reachability options (switches + timeout list) persist across restart.
• Verify tunnel behavior:
  • Direct/auto mode respects selected protocol filter.
  • No filter selected falls back to default protocol selection.
• Verify logs tab:
  • Clear Logs removes current log list.
  • Save & Share Logs exports and opens share sheet.
  • Handshake-pending / tunnel-event lines appear during connect flow.
• Run unit tests for:
  • TunnelNoticeSummaryBuilderTest
  • TunnelNoticeStatusEmitterTest

Notes

• Includes corresponding string/resource and preference XML updates for new settings and UI labels.