refactor: replace all explicit any types with proper TypeScript types

Backend resolvers: typed enrichArticle/enrichVideo/enrichModel with DB
and $inferSelect types, SQL<unknown>[] for conditions arrays, proper
enum casts for status/role fields, $inferInsert for .set() updates,
typed raw SQL result rows in gamification, ReplyLike interface for
ctx.reply in auth. Frontend: typed catch blocks with Error/interface
casts, isActiveLink param, adminGetUser response, tags filter callback.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/backend/src/graphql/resolvers/auth.ts

@@ -3,6 +3,10 @@ import { builder } from "../builder";
 import { CurrentUserType } from "../types/index";
 import { users } from "../../db/schema/index";
 import { eq } from "drizzle-orm";
+
+interface ReplyLike {
+  header?: (name: string, value: string) => void;
+}
 import { hash, verify as verifyArgon } from "../../lib/argon";
 import { setSession, deleteSession } from "../../lib/auth";
 import { sendVerification, sendPasswordReset } from "../../lib/email";
@@ -46,12 +50,7 @@ builder.mutationField("login", (t) =>
       // Set session cookie
       const isProduction = process.env.NODE_ENV === "production";
       const cookieValue = `session_token=${token}; HttpOnly; Path=/; SameSite=Strict; Max-Age=86400${isProduction ? "; Secure" : ""}`;
-      (ctx.reply as any).header?.("Set-Cookie", cookieValue);
-
-      // For graphql-yoga response
-      if ((ctx as any).serverResponse) {
-        (ctx as any).serverResponse.setHeader("Set-Cookie", cookieValue);
-      }
+      (ctx.reply as ReplyLike).header?.("Set-Cookie", cookieValue);
 
       return user[0];
     },
@@ -76,7 +75,7 @@ builder.mutationField("logout", (t) =>
       // Clear cookie
       const isProduction = process.env.NODE_ENV === "production";
       const cookieValue = `session_token=; HttpOnly; Path=/; SameSite=Strict; Max-Age=0${isProduction ? "; Secure" : ""}`;
-      (ctx.reply as any).header?.("Set-Cookie", cookieValue);
+      (ctx.reply as ReplyLike).header?.("Set-Cookie", cookieValue);
       return true;
     },
   }),