feat(scan): expose --reach-continue-on-* flags in help

[Martin Torp (mtorp)]

Summary

• Removes hidden: true from the four --reach-continue-on-* flags in src/commands/scan/reachability-flags.mts so they show up in socket scan create --help and socket scan reach --help.
• Updates inline help snapshots in cmd-scan-create.test.mts and cmd-scan-reach.test.mts to include the now-visible flag lines.
• Bumps the CLI to 1.1.91 and adds a Changed entry to the changelog.

The flags themselves were added in #1251 as hidden until Coana v15 became the default; v15 is now the default (#1289), so they can be surfaced.

Test plan

• npx vitest run src/commands/scan/cmd-scan-create.test.mts src/commands/scan/cmd-scan-reach.test.mts — 79 passed
• pnpm check:tsc — clean
• pnpm check:lint for the touched files — clean (pre-existing errors elsewhere unrelated to this change)

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Note

Low Risk
Low risk: this mostly surfaces previously-hidden reachability flags in CLI help and updates test snapshots, with a routine version/changelog bump and no change to scan execution logic.

Overview
Surfaces four reachability resilience flags (the --reach-continue-on-* options) in socket scan create and socket scan reach help output by un-hiding them in reachability-flags.mts.

Updates the help snapshot tests to include the newly-visible flag lines, and bumps the CLI version to 1.1.91 with a corresponding CHANGELOG.md entry.

^{Reviewed by Cursor Bugbot for commit 6c775c8. Configure here.}