feat(auth): include subscription tier in token and session payload

- Adds subscription tier info to access/refresh tokens.
- Stores tier details in session Redis record.
- Returns tier data in login/register response.
- Uses default tier when user has none.

app/api/auth/session/route.ts

@@ -1,9 +1,11 @@
 import { NextRequest, NextResponse } from "next/server";
 import { cookies } from "next/headers";
 import { secureLogger } from "@/lib/secure-logger";
-import { getSession, refreshSession, deleteSession } from "@/lib/redis/session";
+import { getSession, refreshSession, deleteSession, setSession } from "@/lib/redis/session";
 import { verifyAccessToken } from "@/lib/auth/jwt";
 import { getMainCharacter } from "@/lib/prisma/queries/characters";
+import { getUserById } from "@/lib/prisma/queries/users";
+import { getSubscriptionTierById, getDefaultSubscriptionTier } from "@/lib/prisma/queries/subscription-tiers";
 
 /**
  * GET /api/auth/session
@@ -27,7 +29,7 @@ export async function GET(request: NextRequest) {
     }
 
     // Buscar sessão no Redis
-    const session = await getSession(sessionId);
+    let session = await getSession(sessionId);
 
     if (!session) {
       // Limpar cookie se sessão não existe
@@ -63,6 +65,55 @@ export async function GET(request: NextRequest) {
       return response;
     }
 
+    let tierInfo:
+      | {
+          subscription_tier_id: number | null;
+          name: string | null;
+          slug: string | null;
+          level: number | null;
+        }
+      | null = {
+      subscription_tier_id: session.subscriptionTierId,
+      name: session.subscriptionTierName,
+      slug: session.subscriptionTierSlug,
+      level: session.subscriptionTierLevel,
+    };
+
+    if (
+      tierInfo.subscription_tier_id === undefined ||
+      tierInfo.subscription_tier_id === null ||
+      tierInfo.slug === null
+    ) {
+      const dbUser = await getUserById(session.userId);
+      const fetchedTier = dbUser?.subscription_tier
+        ? await getSubscriptionTierById(dbUser.subscription_tier.subscription_tier_id)
+        : await getDefaultSubscriptionTier();
+
+      tierInfo = fetchedTier
+        ? {
+            subscription_tier_id: fetchedTier.subscription_tier_id,
+            name: fetchedTier.name,
+            slug: fetchedTier.slug,
+            level: fetchedTier.level,
+          }
+        : {
+            subscription_tier_id: null,
+            name: null,
+            slug: null,
+            level: null,
+          };
+
+      session = {
+        ...session,
+        subscriptionTierId: tierInfo.subscription_tier_id,
+        subscriptionTierName: tierInfo.name,
+        subscriptionTierSlug: tierInfo.slug,
+        subscriptionTierLevel: tierInfo.level,
+      };
+
+      await setSession(sessionId, session);
+    }
+
     // Atualizar TTL da sessão
     await refreshSession(sessionId);
 
@@ -78,6 +129,14 @@ export async function GET(request: NextRequest) {
           username: session.username,
           email: session.email,
           characterName: mainCharacter?.character_name || null,
+          subscriptionTier: tierInfo
+            ? {
+                id: tierInfo.subscription_tier_id,
+                name: tierInfo.name,
+                slug: tierInfo.slug,
+                level: tierInfo.level,
+              }
+            : null,
         },
       },
       { status: 200 }