refactor(node-sql): remove unused env from context

Handler doesn't use context.env - remove to avoid exposing raw process.env

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: theothersideofgods

templates/node-sql/index.ts

@@ -55,7 +55,6 @@ app.post('/', async (req: any, res: any, next: any) => {
       pool: currentPool,
       withUserContext: createWithUserContext(currentPool, databaseId),
       log,
-      env: process.env as Record<string, string | undefined>,
     };
 
     const params = req.body || {};

templates/node-sql/types.ts

@@ -20,5 +20,4 @@ export type FunctionContext = {
   pool: Pool;
   withUserContext: <T>(actorId: string | undefined, fn: (client: PoolClient) => Promise<T>) => Promise<T>;
   log: Logger;
-  env: Record<string, string | undefined>;
 };