fix: use vendi-session template for sandboxes (8 CPU / 8GB RAM)

cpuCount and memoryMB passed to Sandbox.create() were silently ignored
by the e2b SDK — these are template-build-time options, not per-sandbox
overrides. All sandboxes were starting with the default "base" template
(2 CPU / 512 MB). Built a dedicated vendi-session template with the
correct resources and reference it by name.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hkirat

apps/server/src/services/sandbox.service.ts

@@ -34,17 +34,15 @@ export async function startSessionSandbox(
   const [ghEncrypted, ghIv] = githubAccount.accessToken.split("|");
   const githubToken = decrypt(ghEncrypted, ghIv);
 
-  // Create empty sandbox (no per-project template)
-  const sandbox = await Sandbox.create({
+  // Create sandbox from the vendi-session template (8 CPU / 8GB RAM)
+  const sandbox = await Sandbox.create("vendi-session", {
     timeoutMs: project.maxSessionDurationMin * 60 * 1000,
-    cpuCount: 8,
-    memoryMB: 16384,
     envs: {
       GITHUB_TOKEN: githubToken,
       ...(env.OPENAI_API_KEY ? { OPENAI_API_KEY: env.OPENAI_API_KEY } : {}),
       ...(env.OPENROUTER_API_KEY ? { OPENROUTER_API_KEY: env.OPENROUTER_API_KEY } : {}),
     },
-  } as any);
+  });
 
   const branchName = `vendi/session-${sessionId}`;
 

apps/server/src/services/setup.service.ts

@@ -362,7 +362,7 @@ export async function startSetupSession(projectId: string, userId: string): Prom
   (async () => {
     try {
       await persistState(projectId, { status: "Creating sandbox..." });
-      const sandbox = await Sandbox.create({ timeoutMs: 30 * 60_000, cpuCount: 8, memoryMB: 16384 } as any);
+      const sandbox = await Sandbox.create("vendi-session", { timeoutMs: 30 * 60_000 });
       sandboxCache.set(projectId, sandbox);
       scheduleSandboxCleanup(projectId);
       await persistState(projectId, { sandboxId: sandbox.sandboxId });