chore: Fix the turbo tasks for docs app (supabase#32941)

* Separate turbo config for docs app into its own separate file. Add a task dependency for codegen tasks.

* Fix the clean command. Remove the prebuild command cause it's already covered by turbo.

Author: ivasilov

Diff for: apps/docs/package.json

@@ -7,7 +7,6 @@
     "predev": "pnpm run codegen:references && pnpm run codegen:examples",
     "dev": "next dev --port 3001",
     "dev:secrets:pull": "AWS_PROFILE=supabase-dev node ../../scripts/getSecrets.js -n local/docs",
-    "prebuild": "pnpm run codegen:references && pnpm run codegen:examples",
     "build": "next build",
     "build:analyze": "ANALYZE=true next build",
     "build:sitemap": "tsx ./internals/generate-sitemap.ts",
@@ -27,7 +26,7 @@
     "codegen:examples": "cp -r ../../examples ./examples",
     "codegen:references": "tsx features/docs/Reference.generated.script.ts",
     "codemod:frontmatter": "node ./scripts/codemod/mdx-meta.mjs && prettier --write \"content/**/*.mdx\"",
-    "clean": "rimraf node_modules ./docs/features/docs/generated ./examples"
+    "clean": "rimraf node_modules features/docs/generated examples"
   },
   "dependencies": {
     "@code-hike/mdx": "^0.9.0",

Diff for: apps/docs/turbo.json

@@ -0,0 +1,49 @@
+{
+  "$schema": "https://turbo.build/schema.json",
+  "extends": ["//"],
+  "tasks": {
+    "codegen:examples": {
+      "inputs": ["../../examples/**"],
+      "outputs": ["examples/**"]
+    },
+    "codegen:references": {
+      "inputs": ["spec/**"],
+      "outputs": ["features/docs/generated/**"]
+    },
+    "build": {
+      "dependsOn": ["^build", "codegen:examples", "codegen:references"],
+      "env": [
+        "ANALYZE",
+        "NEXT_PUBLIC_SUPABASE_URL",
+        "NEXT_PUBLIC_SUPABASE_ANON_KEY",
+        "NEXT_PUBLIC_MISC_URL",
+        "NEXT_PUBLIC_MISC_ANON_KEY",
+        "NODE_ENV",
+        "NEXT_PUBLIC_API_URL",
+        "NEXT_PUBLIC_BASE_PATH",
+        "NEXT_PUBLIC_SITE_URL",
+        "NEXT_PUBLIC_DEV_AUTH_PAGE",
+        "NEXT_PUBLIC_IS_PLATFORM",
+        "NEXT_PUBLIC_VERCEL_ENV",
+        // These envs are used in the packages
+        "NEXT_PUBLIC_STORAGE_KEY",
+        "NEXT_PUBLIC_AUTH_DEBUG_KEY",
+        "NEXT_PUBLIC_AUTH_PERSISTED_KEY",
+        "NEXT_PUBLIC_AUTH_NAVIGATOR_LOCK_KEY",
+        "NEXT_PUBLIC_AUTH_DETECT_SESSION_IN_URL",
+        "NEXT_PUBLIC_GOTRUE_URL",
+        "NEXT_PUBLIC_SUPABASE_ANON_KEY",
+        // These envs are technically passthrough env vars because they're only used on the server side of Nextjs
+        "DOCS_GITHUB_APP_ID",
+        "DOCS_GITHUB_APP_INSTALLATION_ID",
+        "DOCS_GITHUB_APP_PRIVATE_KEY",
+        "DOCS_REVALIDATION_KEYS",
+        "DOCS_REVALIDATION_OVERRIDE_KEYS",
+        "SUPABASE_SECRET_KEY",
+        "OPENAI_API_KEY"
+      ],
+      "inputs": ["$TURBO_DEFAULT$"],
+      "outputs": [".next/**", "!.next/cache/**"]
+    }
+  }
+}

Diff for: turbo.json

@@ -22,41 +22,6 @@
       ],
       "outputs": [".next/**", "!.next/cache/**", ".contentlayer/**"]
     },
-    "docs#build": {
-      "dependsOn": ["^build"],
-      "env": [
-        "ANALYZE",
-        "NEXT_PUBLIC_SUPABASE_URL",
-        "NEXT_PUBLIC_SUPABASE_ANON_KEY",
-        "NEXT_PUBLIC_MISC_URL",
-        "NEXT_PUBLIC_MISC_ANON_KEY",
-        "NODE_ENV",
-        "NEXT_PUBLIC_API_URL",
-        "NEXT_PUBLIC_BASE_PATH",
-        "NEXT_PUBLIC_SITE_URL",
-        "NEXT_PUBLIC_DEV_AUTH_PAGE",
-        "NEXT_PUBLIC_IS_PLATFORM",
-        "NEXT_PUBLIC_VERCEL_ENV",
-        // These envs are used in the packages
-        "NEXT_PUBLIC_STORAGE_KEY",
-        "NEXT_PUBLIC_AUTH_DEBUG_KEY",
-        "NEXT_PUBLIC_AUTH_PERSISTED_KEY",
-        "NEXT_PUBLIC_AUTH_NAVIGATOR_LOCK_KEY",
-        "NEXT_PUBLIC_AUTH_DETECT_SESSION_IN_URL",
-        "NEXT_PUBLIC_GOTRUE_URL",
-        "NEXT_PUBLIC_SUPABASE_ANON_KEY",
-        // These envs are technically passthrough env vars because they're only used on the server side of Nextjs
-        "DOCS_GITHUB_APP_ID",
-        "DOCS_GITHUB_APP_INSTALLATION_ID",
-        "DOCS_GITHUB_APP_PRIVATE_KEY",
-        "DOCS_REVALIDATION_KEYS",
-        "DOCS_REVALIDATION_OVERRIDE_KEYS",
-        "SUPABASE_SECRET_KEY",
-        "OPENAI_API_KEY"
-      ],
-      "inputs": ["$TURBO_DEFAULT$", "../../examples"],
-      "outputs": [".next/**", "!.next/cache/**"]
-    },
     "studio#build": {
       "dependsOn": ["^build"],
       "env": [