fix(deps): complete the OTel pin, restore SDK error detail, revert email list

Follow-ups from an independent audit of the previous commit.

- Pin @opentelemetry/sdk-node and the three otlp-http exporters to exact
  0.217.0. Pinning only their four dependents was self-reversing: sdk-node
  0.219.0 requires core 2.8.0 exactly, so the next update would have
  silently rebuilt the split this PR removes.
- Declare @opentelemetry/core (2.7.1). It is imported by
  lib/copilot/request/go/propagation.ts but resolved only by hoisting, and
  it is the OTel package with the most version churn in the tree.
- Pin @radix-ui/react-dismissable-layer to exact 1.1.13 in @sim/emcn. All
  five transitive parents pin it exactly; a caret would fork a second copy
  on 1.1.14, which is the duplicate-context bug the declaration prevents.
- Surface error.cause in simstudio-ts-sdk. Native fetch reports network
  failures as a bare "fetch failed" and puts the reason on cause, so every
  DNS/TLS/refused error was reaching callers with no diagnostic content.
- Revert free-email-domains to 1.2.25. Upstream now merges the free-domain
  list with two disposable-email blocklists, so 1.9.70 classifies real
  organization domains as free — UK charities, some companies and
  universities, and the JP/KR ISP domains APAC SMBs use for business mail.
  The demo form blocks submission on that check, so a false positive costs
  the booking entirely. Worth doing deliberately, not inside a deps change.
- Lower packages/cli engines to >=18. chalk 5 and commander 11 both accept
  >=16 and the source uses no Node 20 API, so >=20 only produced EBADENGINE
  for Node 18 users.

Author: Waleed Latif

apps/sim/package.json

@@ -79,12 +79,13 @@
     "@modelcontextprotocol/sdk": "1.29.0",
     "@monaco-editor/react": "4.7.0",
     "@opentelemetry/api": "^1.9.0",
-    "@opentelemetry/exporter-logs-otlp-http": "^0.217.0",
-    "@opentelemetry/exporter-metrics-otlp-http": "^0.217.0",
-    "@opentelemetry/exporter-trace-otlp-http": "^0.217.0",
+    "@opentelemetry/core": "2.7.1",
+    "@opentelemetry/exporter-logs-otlp-http": "0.217.0",
+    "@opentelemetry/exporter-metrics-otlp-http": "0.217.0",
+    "@opentelemetry/exporter-trace-otlp-http": "0.217.0",
     "@opentelemetry/resources": "2.7.1",
     "@opentelemetry/sdk-metrics": "2.7.1",
-    "@opentelemetry/sdk-node": "^0.217.0",
+    "@opentelemetry/sdk-node": "0.217.0",
     "@opentelemetry/sdk-trace-base": "2.7.1",
     "@opentelemetry/sdk-trace-node": "2.7.1",
     "@opentelemetry/semantic-conventions": "^1.32.0",
@@ -151,7 +152,7 @@
     "es-toolkit": "1.45.1",
     "fluent-ffmpeg": "2.1.3",
     "framer-motion": "^12.5.0",
-    "free-email-domains": "1.9.70",
+    "free-email-domains": "1.2.25",
     "google-auth-library": "10.5.0",
     "gray-matter": "^4.0.3",
     "groq-sdk": "^0.15.0",

bun.lock

@@ -36,7 +36,7 @@
   "author": "Sim",
   "license": "Apache-2.0",
   "engines": {
-    "node": ">=20"
+    "node": ">=18"
   },
   "dependencies": {
     "chalk": "5.6.2",

packages/cli/package.json

@@ -44,7 +44,7 @@
     "@radix-ui/react-checkbox": "^1.1.3",
     "@radix-ui/react-collapsible": "^1.1.3",
     "@radix-ui/react-dialog": "^1.1.5",
-    "@radix-ui/react-dismissable-layer": "^1.1.13",
+    "@radix-ui/react-dismissable-layer": "1.1.13",
     "@radix-ui/react-dropdown-menu": "^2.1.17",
     "@radix-ui/react-label": "^2.1.2",
     "@radix-ui/react-popover": "^1.1.5",
@@ -67,7 +67,7 @@
     "@radix-ui/react-checkbox": "^1.1.3",
     "@radix-ui/react-collapsible": "^1.1.3",
     "@radix-ui/react-dialog": "^1.1.5",
-    "@radix-ui/react-dismissable-layer": "^1.1.13",
+    "@radix-ui/react-dismissable-layer": "1.1.13",
     "@radix-ui/react-dropdown-menu": "^2.1.17",
     "@radix-ui/react-label": "^2.1.2",
     "@radix-ui/react-popover": "^1.1.5",

packages/emcn/package.json

@@ -105,6 +105,20 @@ export interface UsageLimits {
   }
 }
 
+/**
+ * Native fetch reports network failures as a bare `TypeError: fetch failed` and puts the
+ * underlying reason (ECONNREFUSED, DNS, TLS) on `cause`. Fold it into the message so callers
+ * keep the diagnostic detail, and return the plain message unchanged when there is no cause.
+ */
+function describeError(error: any): string | undefined {
+  const message: string | undefined = error?.message
+  const cause: string | undefined = error?.cause?.message
+  if (message && cause && !message.includes(cause)) {
+    return `${message}: ${cause}`
+  }
+  return message
+}
+
 export class SimStudioError extends Error {
   public code?: string
   public status?: number
@@ -274,7 +288,10 @@ export class SimStudioClient {
         throw new SimStudioError(`Workflow execution timed out after ${timeout}ms`, 'TIMEOUT')
       }
 
-      throw new SimStudioError(error?.message || 'Failed to execute workflow', 'EXECUTION_ERROR')
+      throw new SimStudioError(
+        describeError(error) || 'Failed to execute workflow',
+        'EXECUTION_ERROR'
+      )
     }
   }
 
@@ -308,7 +325,10 @@ export class SimStudioClient {
         throw error
       }
 
-      throw new SimStudioError(error?.message || 'Failed to get workflow status', 'STATUS_ERROR')
+      throw new SimStudioError(
+        describeError(error) || 'Failed to get workflow status',
+        'STATUS_ERROR'
+      )
     }
   }
 
@@ -386,7 +406,7 @@ export class SimStudioClient {
         throw error
       }
 
-      throw new SimStudioError(error?.message || 'Failed to get job status', 'STATUS_ERROR')
+      throw new SimStudioError(describeError(error) || 'Failed to get job status', 'STATUS_ERROR')
     }
   }
 
@@ -509,7 +529,7 @@ export class SimStudioClient {
         throw error
       }
 
-      throw new SimStudioError(error?.message || 'Failed to get usage limits', 'USAGE_ERROR')
+      throw new SimStudioError(describeError(error) || 'Failed to get usage limits', 'USAGE_ERROR')
     }
   }
 }