feat: add apotheosis third prestige layer and remove IDEAS.md

Apotheosis is the ultimate reset — wipes absolutely everything
including prestige and transcendence — in exchange for a pure
bragging-rights badge. No mechanical benefit whatsoever.

Unlock condition: all 15 Transcendence echo upgrades purchased.
Can be achieved multiple times; each cycle requires repurchasing
all Transcendence upgrades again.

What survives: Codex lore entries and lifetime profile statistics.
What is wiped: resources, prestige, runestones, transcendence data
(echoes, echo upgrades, multipliers), equipment, upgrades, bosses,
quests, zones, adventurers, achievements.

New files: Apotheosis.ts type, apotheosis service, apotheosis route,
ApotheosisPanel.tsx component.

Modified: GameState (apotheosis field), Api.ts, types/index.ts,
prestige service (carry apotheosis), transcendence service (carry
apotheosis), game.ts anti-cheat (cap apotheosis count), API client,
GameContext (apotheosis() function), GameLayout (new tab), ResourceBar
(gold apotheosis badge shown above transcendence and prestige badges),
styles.css, AboutPanel how-to-play.

Also removes IDEAS.md — all planned features are now implemented!

apps/api/src/index.ts

@@ -3,6 +3,7 @@ import { Hono } from "hono";
 import { cors } from "hono/cors";
 import { logger } from "hono/logger";
 import { aboutRouter } from "./routes/about.js";
+import { apotheosisRouter } from "./routes/apotheosis.js";
 import { authRouter } from "./routes/auth.js";
 import { bossRouter } from "./routes/boss.js";
 import { gameRouter } from "./routes/game.js";
@@ -28,6 +29,7 @@ app.route("/game", gameRouter);
 app.route("/boss", bossRouter);
 app.route("/prestige", prestigeRouter);
 app.route("/transcendence", transcendenceRouter);
+app.route("/apotheosis", apotheosisRouter);
 app.route("/profile", profileRouter);
 
 app.get("/health", (context) => context.json({ status: "ok" }));