Initial commit: Theriapolis baseline at port/godot branch point

Captures the pre-Godot-port state of the codebase. This is the rollback
anchor for the Godot port (M0 of theriapolis-rpg-implementation-plan-godot-port.md).
All Phase 0 through Phase 6.5 work is included; Phase 7 is in flight.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

_design_handoff/README.md

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+# `_design_handoff/` — Snapshot Staging Area
+
+This top-level folder is a **staging area for files we hand to external design
+tools** (e.g. Claude Design, Figma plugins, UX consultants). Each subfolder is
+a curated, self-contained snapshot of a feature's relevant source — schema
+records, content JSON, screen code — so the design tool gets enough context
+to redesign without seeing the entire codebase.
+
+## What this folder is NOT
+
+- **Not source code.** Nothing in here is referenced by any `.csproj`,
+  imported by any namespace, or executed by the game. Deleting the entire
+  folder would not affect `dotnet build` or `dotnet test`.
+- **Not authoritative.** Everything is a copy. The originals — under
+  `Theriapolis.*/` and `Content/Data/` — are canonical. If a design discussion
+  motivates a code change, edit the original, not the snapshot.
+- **Not auto-refreshed.** Snapshots are taken manually (see each subfolder's
+  `MANIFEST.md` for the file list and refresh command). They go stale the
+  moment the originals change.
+
+## For future Claude Code sessions
+
+If you grep the repo and hit a match under `_design_handoff/`, treat it as
+documentation, not as a second copy of the same file to edit. Only edit the
+canonical path under `Theriapolis.*` / `Content/`. To bring a snapshot back in
+sync, follow the refresh command in that subfolder's `MANIFEST.md`.
+
+It's safe to delete any subfolder once the design conversation it was created
+for has wrapped up. Each subfolder is independent.
+
+## Current contents
+
+- **`character_creation/`** — Phase 5 M2 character creation flow snapshot.
+  Created 2026-04-25 for Claude Design redesign of the single-screen
+  `CharacterCreationScreen`. See its `README.md` for context.