refactor: clean up code formatting and update package dependencies

- Removed unnecessary blank lines and improved formatting for better readability in index.ts and converters.ts.
- Updated package-lock.json to downgrade several dependencies for compatibility, including @protobufjs/eventemitter, @protobufjs/fetch, and others.
- Enhanced error message in core.ts to clarify configuration options for the Command Code API key.
- Added a test to ensure the correct handling of environment variable values in test-stream.ts.

src/core.ts

@@ -18,7 +18,7 @@ import {
   recordOrEmpty,
   stringValue,
   toolsToJson,
-  systemPromptToText
+  systemPromptToText,
 } from "./converters.ts"
 import type {
   AssistantMessageEventStreamLike,
@@ -135,9 +135,7 @@ export function createStreamCommandCode(deps: CoreDependencies) {
       // OMP may pass the env-var name "COMMANDCODE_API_KEY" as the apiKey
       // value instead of resolving it. Filter out this specific string.
       const hostKey =
-        options?.apiKey && options.apiKey !== "COMMANDCODE_API_KEY"
-          ? options.apiKey
-          : undefined
+        options?.apiKey && options.apiKey !== "COMMANDCODE_API_KEY" ? options.apiKey : undefined
 
       const apiKey =
         hostKey ??
@@ -157,7 +155,7 @@ export function createStreamCommandCode(deps: CoreDependencies) {
           usage: defaultUsage(),
           stopReason: "error",
           errorMessage:
-            "No Command Code API key. Run /login and select Command Code, set COMMANDCODE_API_KEY env var, or configure ~/.commandcode/auth.json or ~/.pi/agent/auth.json.",
+            "No Command Code API key. Run /login and select Command Code, set the COMMANDCODE_API_KEY env var, or configure ~/.commandcode/auth.json, ~/.pi/agent/auth.json or ~/.omp/agent/auth.json",
           timestamp: now(),
         }
         stream.push({ type: "error", reason: "error", error: msg })