[GATE-P0-3/P0-4/P0-5] Clear next implementation queue

[sorted-ai-bot]

Summary

• Clear the remaining pre-release implementation queue: roles path/model validation, auth readiness and credential hardening, CLI argument rejection, and TUI breakpoint wiring.
• Preserve the current local gate: build, 87 unit tests, and license audit pass.
• Targeted follow-up review returned no findings after CLI and TUI edge-case fixes.

Verification

• xmake build -y
• xmake run test_roles
• xmake run test_safety_corpus
• xmake run test_safety_queue
• xmake run test_safety_redact
• scripts/license_audit.sh

Notes

• Windows credential ACL path is code-reviewed but requires Windows CI/runtime verification.
• This PR does not start P0-6 release readiness.

[sorted-ai-bot]

@YumaKakuya PR #13 merge request

[github-actions]

PR Auto-Review

PASS - Clean and focused changes

A - Scope cohesion: PASS
The changes involve clearing the implementation queue with focused improvements on roles validation, authorization, and updating CLI comments. All modifications contribute to the same coherent purpose of refining functionality and user interaction in the codebase.

B - Commit author: PASS
The commit author is a human CEO (@null_founder), as indicated by the email in the PR metadata.

C - Build in Public compliance: PASS
No vendor names are present in either the commit messages or code comments. The content remains generic and compliant with the requirement.

D - Single-binary discipline: PASS
There are no runtime dependencies introduced in the changes. The modifications strictly use C++ standards and the existing code without adding any external dependencies that would violate single-binary principles.

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• Model: openai/gpt-4o-mini via actions/ai-inference@v2
• Diff: 20517 bytes (truncated=false)
• Run: https://github.com/YumaKakuya/traveler/actions/runs/25417788302

AI-generated sanity check. CEO remains final merge authority.