feat: add race/class to character sheet, public /character/:id page

Players can now set their character's race and class in the Character
tab. A new public page at /character/:id displays the full character
sheet — name, pronouns, race, class, bio, and guild lore.

apps/web/src/App.tsx

@@ -1,5 +1,6 @@
 import { useState } from "react";
 import { GameProvider } from "./context/GameContext.js";
+import { CharacterPage } from "./components/game/CharacterPage.js";
 import { GameLayout } from "./components/game/GameLayout.js";
 import { LoginPage } from "./components/game/LoginPage.js";
 import { ProfilePage } from "./components/game/ProfilePage.js";
@@ -9,6 +10,11 @@ const getProfileDiscordId = (): string | null => {
   return match?.[1] ?? null;
 };
 
+const getCharacterDiscordId = (): string | null => {
+  const match = /^\/character\/(\d+)$/.exec(window.location.pathname);
+  return match?.[1] ?? null;
+};
+
 const handleAuthCallback = (): boolean => {
   if (window.location.pathname !== "/auth/callback") {
     return false;
@@ -38,6 +44,11 @@ export const App = (): React.JSX.Element => {
     return <ProfilePage discordId={profileDiscordId} />;
   }
 
+  const characterDiscordId = getCharacterDiscordId();
+  if (characterDiscordId) {
+    return <CharacterPage discordId={characterDiscordId} />;
+  }
+
   if (!loggedIn) {
     return <LoginPage onLogin={() => { setLoggedIn(true); }} />;
   }