docs: update api-reference project for v2 (#7307)

* remove everything v1 and make v2 default

* move main v2 rewrites to book

* move rewrites to book + other fixes

www/apps/api-reference/app/api/schema/route.ts

@@ -1,5 +1,5 @@
 import { NextResponse } from "next/server"
-import { SchemaObject, Version } from "../../../types/openapi"
+import { SchemaObject } from "../../../types/openapi"
 import path from "path"
 import { existsSync, promises as fs } from "fs"
 import { parseDocument } from "yaml"
@@ -8,7 +8,6 @@ export async function GET(request: Request) {
   const { searchParams } = new URL(request.url)
   let name = searchParams.get("name")
   const area = searchParams.get("area")
-  const version = (searchParams.get("version") as Version) || "1"
 
   if (!name) {
     return NextResponse.json(
@@ -40,7 +39,7 @@ export async function GET(request: Request) {
 
   const schemaPath = path.join(
     process.cwd(),
-    version === "1" ? "specs" : "specs-v2",
+    "specs",
     area,
     "components",
     "schemas",