Add recovery aids: hints, related evidence, contradiction markers, recap

[breadback00-dev]

Goal

Prevent players from getting lost while preserving the feeling of investigation.

Tasks

• Add subtle hints for the access gate.
• Add related-evidence prompts or contradiction markers.
• Add a brief recap before final submission.
• Keep recovery aids diegetic where possible.

Acceptance criteria

• Players can recover from confusion without leaving the case.
• Hints do not solve the case automatically.
• The final submission screen reminds players what they have actually discovered.

Recommended Compound Engineering skill

ce-work, then ce-test-browser.

[breadback00-dev]

Implemented in draft PR #14 via commit da47d28. Added related-evidence jumps, contradiction markers that appear after both sides are reviewed, diegetic recovery cues on artifacts, a pre-submit recap, and active-evidence recovery when route changes remove a bonus item from view.