refactor: replace the legacy function runtime with shared

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/compiler/src/server-codegen.ts

@@ -25,7 +25,7 @@ function stableId(value: string): string {
  */
 export function remotelyReferencedServerFunctions(ast: PageAst): Set<string> {
   const browserSources = ast.runtimeFunctions
-    .filter((fn) => ["legacy", "client", "shared"].includes(fn.runtime))
+    .filter((fn) => ["client", "shared"].includes(fn.runtime))
     .map((fn) => fn.body);
   for (const [hook, body] of Object.entries(ast.storeLifecycle)) {
     if (hook !== "serverInit" && body) browserSources.push(body);
@@ -57,11 +57,11 @@ export function rpcManifest(ast: PageAst): RpcManifestEntry[] {
 
 export function generateServerFunctionsModule(ast: PageAst): string {
   const source = ast.functions
-    .map((body) => stripRuntimeFunctionModifiers(body, ["legacy", "server", "shared"]))
+    .map((body) => stripRuntimeFunctionModifiers(body, ["server", "shared"]))
     .filter(Boolean)
     .join("\n\n");
   const names = ast.runtimeFunctions
-    .filter((fn) => ["legacy", "server", "shared"].includes(fn.runtime))
+    .filter((fn) => ["server", "shared"].includes(fn.runtime))
     .map((fn) => fn.name);
   const manifest = rpcManifest(ast);
   return `// generated WRNexusJS server module for ${ast.name}\n${source}\n\nexport const __wrnexusServerFunctions = { ${[...new Set(names)].join(", ")} };\nexport const __wrnexusRpcManifest = ${JSON.stringify(manifest, null, 2)};\n`;