feat: grant Discord role and post webhook on apotheosis

apps/api/prod.env

@@ -7,3 +7,6 @@ ANTI_CHEAT_SECRET="op://Environment Variables - Naomi/Elysium/anti cheat secret"
 PORT="op://Environment Variables - Naomi/Elysium/port"
 CORS_ORIGIN="op://Environment Variables - Naomi/Elysium/origin"
 DISCORD_MILESTONE_WEBHOOK="op://Environment Variables - Naomi/Elysium/discord milestone webhook"
+DISCORD_BOT_TOKEN="op://Environment Variables - Naomi/Elysium/discord bot token"
+DISCORD_GUILD_ID="op://Environment Variables - Naomi/Elysium/discord guild id"
+DISCORD_APOTHEOSIS_ROLE_ID="op://Environment Variables - Naomi/Elysium/discord apotheosis role id"

apps/api/src/routes/apotheosis.ts

@@ -7,7 +7,7 @@ import {
   buildPostApotheosisState,
   isEligibleForApotheosis,
 } from "../services/apotheosis.js";
-import { postMilestoneWebhook } from "../services/webhook.js";
+import { grantApotheosisRole, postMilestoneWebhook } from "../services/webhook.js";
 
 export const apotheosisRouter = new Hono<HonoEnv>();
 
@@ -62,6 +62,7 @@ apotheosisRouter.post("/", async (context) => {
     },
   });
 
+  void grantApotheosisRole(discordId);
   void postMilestoneWebhook(discordId, "apotheosis", {
     prestige: newState.prestige.count,
     transcendence: newState.transcendence?.count ?? 0,

apps/api/src/services/webhook.ts

@@ -1,3 +1,24 @@
+const DISCORD_API = "https://discord.com/api/v10";
+
+export const grantApotheosisRole = async (discordId: string): Promise<void> => {
+  const botToken = process.env["DISCORD_BOT_TOKEN"];
+  const guildId = process.env["DISCORD_GUILD_ID"];
+  const roleId = process.env["DISCORD_APOTHEOSIS_ROLE_ID"];
+
+  if (!botToken || !guildId || !roleId) {
+    return;
+  }
+
+  try {
+    await fetch(`${DISCORD_API}/guilds/${guildId}/members/${discordId}/roles/${roleId}`, {
+      method: "PUT",
+      headers: { Authorization: `Bot ${botToken}` },
+    });
+  } catch {
+    // Graceful degradation — role grant failure must not affect the apotheosis
+  }
+};
+
 type MilestoneType = "prestige" | "transcendence" | "apotheosis";
 
 interface MilestoneCounts {