fix: switch backend to CommonJS, generate Drizzle migrations, add migrate script

- Remove "type": "module" and switch tsconfig to CommonJS/Node resolution
  to fix drizzle-kit ESM/CJS incompatibility
- Strip .js extensions from all backend TypeScript imports
- Fix gamification resolver: combine two .where() calls using and()
- Fix index.ts: wrap top-level awaits in async main(), fix Fastify+yoga
  request handling via handleNodeRequestAndResponse
- Generate initial Drizzle SQL migration (0000_pale_hellion.sql) for all
  15 tables
- Add src/scripts/migrate.ts: programmatic Drizzle migrator for production
- Copy migrations folder into Docker image (Dockerfile.backend)
- Add schema:migrate npm script

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

packages/backend/src/graphql/builder.ts

@@ -1,7 +1,7 @@
 import SchemaBuilder from "@pothos/core";
 import ErrorsPlugin from "@pothos/plugin-errors";
-import type { DB } from "../db/connection.js";
-import type { SessionUser } from "../lib/auth.js";
+import type { DB } from "../db/connection";
+import type { SessionUser } from "../lib/auth";
 import type Redis from "ioredis";
 import { GraphQLDateTime, GraphQLJSON } from "graphql-scalars";
 

packages/backend/src/graphql/context.ts

@@ -1,8 +1,8 @@
 import type { YogaInitialContext } from "graphql-yoga";
-import type { Context } from "./builder.js";
-import { getSession } from "../lib/auth.js";
-import { db } from "../db/connection.js";
-import { redis } from "../lib/auth.js";
+import type { Context } from "./builder";
+import { getSession } from "../lib/auth";
+import { db } from "../db/connection";
+import { redis } from "../lib/auth";
 
 export async function buildContext(ctx: YogaInitialContext & { request: Request; reply: unknown; db: typeof db; redis: typeof redis }): Promise<Context> {
   const request = ctx.request;

packages/backend/src/graphql/index.ts

@@ -9,6 +9,6 @@ import "./resolvers/recordings.js";
 import "./resolvers/comments.js";
 import "./resolvers/gamification.js";
 import "./resolvers/stats.js";
-import { builder } from "./builder.js";
+import { builder } from "./builder";
 
 export const schema = builder.toSchema();

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

@@ -1,6 +1,6 @@
-import { builder } from "../builder.js";
-import { ArticleType } from "../types/index.js";
-import { articles, users } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { ArticleType } from "../types/index";
+import { articles, users } from "../../db/schema/index";
 import { eq, and, lte, desc } from "drizzle-orm";
 
 builder.queryField("articles", (t) =>

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

@@ -1,12 +1,12 @@
 import { GraphQLError } from "graphql";
-import { builder } from "../builder.js";
-import { CurrentUserType } from "../types/index.js";
-import { users } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { CurrentUserType } from "../types/index";
+import { users } from "../../db/schema/index";
 import { eq } from "drizzle-orm";
-import { hash, verify as verifyArgon } from "../../lib/argon.js";
-import { setSession, deleteSession } from "../../lib/auth.js";
-import { sendVerification, sendPasswordReset } from "../../lib/email.js";
-import { slugify } from "../../lib/slugify.js";
+import { hash, verify as verifyArgon } from "../../lib/argon";
+import { setSession, deleteSession } from "../../lib/auth";
+import { sendVerification, sendPasswordReset } from "../../lib/email";
+import { slugify } from "../../lib/slugify";
 import { nanoid } from "nanoid";
 
 builder.mutationField("login", (t) =>

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

@@ -1,9 +1,9 @@
 import { GraphQLError } from "graphql";
-import { builder } from "../builder.js";
-import { CommentType } from "../types/index.js";
-import { comments, users } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { CommentType } from "../types/index";
+import { comments, users } from "../../db/schema/index";
 import { eq, and, desc } from "drizzle-orm";
-import { awardPoints, checkAchievements } from "../../lib/gamification.js";
+import { awardPoints, checkAchievements } from "../../lib/gamification";
 
 builder.queryField("commentsForVideo", (t) =>
   t.field({

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

@@ -1,7 +1,7 @@
-import { builder } from "../builder.js";
-import { LeaderboardEntryType, UserGamificationType, AchievementType } from "../types/index.js";
-import { user_stats, users, user_achievements, achievements, user_points } from "../../db/schema/index.js";
-import { eq, desc, gt, count, isNotNull } from "drizzle-orm";
+import { builder } from "../builder";
+import { LeaderboardEntryType, UserGamificationType, AchievementType } from "../types/index";
+import { user_stats, users, user_achievements, achievements, user_points } from "../../db/schema/index";
+import { eq, desc, gt, count, isNotNull, and } from "drizzle-orm";
 
 builder.queryField("leaderboard", (t) =>
   t.field({
@@ -73,8 +73,7 @@ builder.queryField("userGamification", (t) =>
         })
         .from(user_achievements)
         .leftJoin(achievements, eq(user_achievements.achievement_id, achievements.id))
-        .where(eq(user_achievements.user_id, args.userId))
-        .where(isNotNull(user_achievements.date_unlocked))
+        .where(and(eq(user_achievements.user_id, args.userId), isNotNull(user_achievements.date_unlocked)))
         .orderBy(desc(user_achievements.date_unlocked));
 
       const recentPoints = await ctx.db

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

@@ -1,6 +1,6 @@
-import { builder } from "../builder.js";
-import { ModelType } from "../types/index.js";
-import { users, user_photos, files } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { ModelType } from "../types/index";
+import { users, user_photos, files } from "../../db/schema/index";
 import { eq, and, desc } from "drizzle-orm";
 
 async function enrichModel(db: any, user: any) {

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

@@ -1,10 +1,10 @@
 import { GraphQLError } from "graphql";
-import { builder } from "../builder.js";
-import { RecordingType } from "../types/index.js";
-import { recordings, recording_plays } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { RecordingType } from "../types/index";
+import { recordings, recording_plays } from "../../db/schema/index";
 import { eq, and, desc } from "drizzle-orm";
-import { slugify } from "../../lib/slugify.js";
-import { awardPoints, checkAchievements } from "../../lib/gamification.js";
+import { slugify } from "../../lib/slugify";
+import { awardPoints, checkAchievements } from "../../lib/gamification";
 
 builder.queryField("recordings", (t) =>
   t.field({

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

@@ -1,6 +1,6 @@
-import { builder } from "../builder.js";
-import { StatsType } from "../types/index.js";
-import { users, videos } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { StatsType } from "../types/index";
+import { users, videos } from "../../db/schema/index";
 import { eq, count } from "drizzle-orm";
 
 builder.queryField("stats", (t) =>

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

@@ -1,7 +1,7 @@
 import { GraphQLError } from "graphql";
-import { builder } from "../builder.js";
-import { CurrentUserType, UserType } from "../types/index.js";
-import { users } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { CurrentUserType, UserType } from "../types/index";
+import { users } from "../../db/schema/index";
 import { eq } from "drizzle-orm";
 
 builder.queryField("me", (t) =>

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

@@ -1,7 +1,7 @@
 import { GraphQLError } from "graphql";
-import { builder } from "../builder.js";
-import { VideoType, VideoLikeResponseType, VideoPlayResponseType, VideoLikeStatusType } from "../types/index.js";
-import { videos, video_models, video_likes, video_plays, users, files } from "../../db/schema/index.js";
+import { builder } from "../builder";
+import { VideoType, VideoLikeResponseType, VideoPlayResponseType, VideoLikeStatusType } from "../types/index";
+import { videos, video_models, video_likes, video_plays, users, files } from "../../db/schema/index";
 import { eq, and, lte, desc, inArray, count } from "drizzle-orm";
 
 async function enrichVideo(db: any, video: any) {

packages/backend/src/graphql/types/index.ts

@@ -1,4 +1,4 @@
-import { builder } from "../builder.js";
+import { builder } from "../builder";
 
 // File type
 export const FileType = builder.objectRef<{