Implement evidence tagging and signal profile tracking

[breadback00-dev]

Goal

Let player interpretation shape the route through the case while the underlying truth remains stable.

Tasks

• Add or refine evidence-level force/signal tags.
• Track player-selected tags across the session.
• Show a readable signal profile without making it feel like a score screen.
• Use the signal profile as input for evidence ordering or bonus evidence.

Acceptance criteria

• Players can tag evidence while investigating.
• The system records a dominant interpretation path.
• The mechanic feels interpretive, not like choosing a faction.
• Canonical truth is not changed by tags.

Recommended Compound Engineering skill

ce-work.

[breadback00-dev]

Implemented in draft PR #14 via commit 7a0b387. Players can now see selected signals on each evidence card and active artifact, the signal profile shows active interpretive pressure instead of raw numeric meters, ties become a Mixed path, and a clear dominant signal lightly reorders the evidence inbox while canonical truth remains unchanged.