feat(characters): add catalog boundary and capabilities

src/data/constants/__tests__/character.test.ts

@@ -4,6 +4,7 @@ import { describe, expect, it } from "vitest";
 
 import {
   CHARACTERS,
+  createCharacterCatalog,
   DEFAULT_CHARACTER,
   getCharacterById,
   getCharacterBySlug,
@@ -22,9 +23,22 @@ describe("local character catalog", () => {
     expect(Object.isFrozen(CHARACTERS)).toBe(true);
     expect(Object.isFrozen(DEFAULT_CHARACTER)).toBe(true);
     expect(Object.isFrozen(DEFAULT_CHARACTER.assets)).toBe(true);
+    expect(Object.isFrozen(DEFAULT_CHARACTER.capabilities)).toBe(true);
     expect(Object.isFrozen(DEFAULT_CHARACTER.copy)).toBe(true);
   });
 
+  it("sorts catalog entries and rejects duplicate identities", () => {
+    const catalog = createCharacterCatalog([...CHARACTERS].reverse());
+    expect(catalog.characters.map((character) => character.slug)).toEqual([
+      "elio",
+      "maya",
+      "nayeli",
+    ]);
+    expect(() =>
+      createCharacterCatalog([CHARACTERS[0], CHARACTERS[0]]),
+    ).toThrow("Duplicate character identity");
+  });
+
   it("resolves characters by id and normalized slug", () => {
     expect(getCharacterById("character_maya")?.displayName).toBe("Maya Tan");
     expect(getCharacterBySlug(" NAYELI ")?.displayName).toBe(
@@ -34,6 +48,21 @@ describe("local character catalog", () => {
     expect(getCharacterBySlug("missing")).toBeNull();
   });
 
+  it("describes route capabilities and character-specific chat copy", () => {
+    for (const character of CHARACTERS) {
+      expect(character.capabilities).toEqual({
+        chat: true,
+        privateRoom: true,
+        tip: true,
+      });
+      expect(character.tagline.length).toBeGreaterThan(0);
+      expect(character.emptyChatGreeting.length).toBeGreaterThan(0);
+      expect(character.assets.chatBackground).toBe(
+        "/images/chat/bg-chatpage.png",
+      );
+    }
+  });
+
   it("references local assets that exist under public", () => {
     for (const character of CHARACTERS) {
       for (const assetPath of Object.values(character.assets)) {