fix(templates): fix 7 type-check bugs in NestJS/AdonisJS/Elysia/Drizzle templates

- NestJS tsconfig: add experimentalDecorators + emitDecoratorMetadata
- NestJS: guard AI, oRPC, tRPC files behind feature-flag conditionals
- NestJS: rename unused `res` → `_res` to satisfy noUnusedLocals
- AdonisJS: replace router.options() with router.route() (method doesn't exist)
- AdonisJS: fix better-auth handler to 2-arg (req, res) signature
- Elysia: remove unused `const app` variable
- Drizzle: use ./schema/index.js imports (works with both bundler and node16)
- Drizzle: add .js extension to auth barrel re-export
- Update 30 template snapshots and add batch 3 combo ledgers (30 combos, all PASS)

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

Author: Marve10s

apps/cli/test/__snapshots__/template-snapshots.test.ts.snap

@@ -1267,7 +1267,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-tanstack-router-minimal/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 import { drizzle } from "drizzle-orm/libsql";
 import { createClient } from "@libsql/client";
 
@@ -1967,7 +1967,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-next-self-fullstack/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 
 import { drizzle } from "drizzle-orm/node-postgres";
 
@@ -2078,7 +2078,7 @@ export const accountRelations = relations(account, ({ one }) => ({
     },
     {
       "content": 
-"export * from "./auth";
+"export * from "./auth.js";
 export {};"
 ,
       "path": "packages/db/src/schema/index.ts",
@@ -2499,7 +2499,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-astro-react-integration/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 import { drizzle } from "drizzle-orm/libsql";
 import { createClient } from "@libsql/client";
 
@@ -2999,7 +2999,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-nuxt-standalone/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 import { drizzle } from "drizzle-orm/libsql";
 import { createClient } from "@libsql/client";
 
@@ -4525,7 +4525,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-hono-bun-orpc/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 import { drizzle } from "drizzle-orm/libsql";
 import { createClient } from "@libsql/client";
 
@@ -5418,7 +5418,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-better-auth-full/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 
 import { drizzle } from "drizzle-orm/node-postgres";
 
@@ -5529,7 +5529,7 @@ export const accountRelations = relations(account, ({ one }) => ({
     },
     {
       "content": 
-"export * from "./auth";
+"export * from "./auth.js";
 export {};"
 ,
       "path": "packages/db/src/schema/index.ts",
@@ -8642,7 +8642,7 @@ export default defineConfig({
     {
       "content": 
 "import { env } from "@snapshot-native-react-native/env/server";
-import * as schema from "./schema";
+import * as schema from "./schema/index.js";
 import { drizzle } from "drizzle-orm/libsql";
 import { createClient } from "@libsql/client";