refactor(content): rename mood vocabulary to match voice guide (D-035 Sprint 14 amendment)

Schema and Rust Mood enum renamed for author-friendly vocabulary:
fond→warm, comfortable→content, worried→anxious, concerned→frustrated.
Dropped: analytical (merged into focused), conflicted (modeled as
suspicious+warm collision). Added: hostile. Final 8 moods: anxious,
frustrated, content, suspicious, warm, hostile, relieved, focused.
Neutral = untagged. Resolves Gestalt's blocking issue on #121.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

decisions/content.md

@@ -83,6 +83,7 @@ How narrative, NPCs, and world content are created: content tiers, NPC generatio
 - **Raised by:** Gestalt (schema design, Round 1/2), Mellanie (authoring validation, Round 1/2). Converged across both agents in Round 2.
 - **Dissent:** None. Minor consolidations: Mellanie's 8 moods mapped to Gestalt's 8 (different names, same concepts). Mellanie's `crime` topic deliberately excluded (NPCs think of it as `cargo` or `money`).
 - **Amendment (Sprint 8):** `focused` added as 9th mood (used in Kael dialogue at The Terminal and maintenance corridors). `greeting` added as 14th situation (used in PC dialogue pools for initial contact lines). Schema updated to match.
+- **Amendment (Sprint 14):** Mood vocabulary renamed to match voice guide (monologue-voice-guide.md). Old → new: `fond`→`warm`, `comfortable`→`content`, `worried`→`anxious`, `concerned`→`frustrated`. Dropped: `analytical` (merged into `focused`), `conflicted` (modeled as `suspicious`+`warm` collision). Added: `hostile`. Final 8 moods: `anxious`, `frustrated`, `content`, `suspicious`, `warm`, `hostile`, `relieved`, `focused`. Neutral = untagged.
 
 ### D-036: Sova Transit District / Krenn System as v0.1 setting
 - **Date:** 2026-02-11