fix(api-proxy): keep container running when no API keys present

[Claude]

The api-proxy container was exiting immediately (exit code 0) when no API keys were configured, causing docker-compose health checks to fail with "dependency failed to start: container awf-api-proxy exited (0)". This broke the test-examples workflow which doesn't use LLM APIs.

Changes

• Modified containers/api-proxy/server.js: HTTP servers on ports 10000 and 10001 now always start, regardless of API key presence
• Conditional middleware: Proxy middleware is only configured when corresponding API keys exist
• Informative logging: Added console messages indicating whether each proxy is enabled or disabled

Before

// Server only started if API key present
if (OPENAI_API_KEY) {
  app.use(createProxyMiddleware({...}));
  app.listen(10000, ...);  // Container exits if key missing
}

After

// Middleware conditionally configured
if (OPENAI_API_KEY) {
  app.use(createProxyMiddleware({...}));
} else {
  console.log('[API Proxy] OpenAI API key not configured - proxy disabled');
}
// Server always starts to keep container alive
app.listen(10000, '0.0.0.0', ...);

This ensures the container remains healthy for docker-compose dependencies even when API keys aren't needed (e.g., in tests that don't use LLM APIs).

[Copilot]

Pull request overview

This PR fixes the api-proxy sidecar container exiting immediately when no LLM API keys are provided by ensuring the HTTP servers always bind to ports 10000/10001 while only enabling proxy middleware when the corresponding key exists. This keeps docker-compose health checks and depends_on: condition: service_healthy working in workflows/tests that don’t use LLM APIs.

Changes:

• Always start the OpenAI listener on port 10000 and Anthropic listener on port 10001.
• Conditionally attach http-proxy-middleware only when OPENAI_API_KEY / ANTHROPIC_API_KEY are present.
• Add logs indicating whether each proxy is configured or disabled.

Comments suppressed due to low confidence (1)

containers/api-proxy/server.js:111

• When ANTHROPIC_API_KEY is not set, no proxy middleware is attached, but the startup log still says "Anthropic proxy listening on port 10001". Consider updating this log message (or making it conditional) so it’s clear the server is up to satisfy health/dependency checks but the proxy functionality is disabled.

anthropicApp.listen(10001, '0.0.0.0', () => {
  console.log('[API Proxy] Anthropic proxy listening on port 10001');
  if (ANTHROPIC_API_KEY) {
    console.log('[API Proxy] Routing through Squid to api.anthropic.com');

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[Copilot]

When OPENAI_API_KEY is not set, no proxy middleware is attached, but the startup log still says "OpenAI proxy listening on port 10000". Consider changing this message to reflect that the server is listening but the proxy is disabled, or make the message conditional so logs don’t imply the proxy is active when it isn’t.

This issue also appears on line 108 of the same file.

Suggested change

	console.log('[API Proxy] OpenAI proxy listening on port 10000');
	if (OPENAI_API_KEY) {
	console.log('[API Proxy] Routing through Squid to api.openai.com');
	if (OPENAI_API_KEY) {
	console.log('[API Proxy] OpenAI proxy listening on port 10000');
	console.log('[API Proxy] Routing through Squid to api.openai.com');
	} else {
	console.log('[API Proxy] OpenAI proxy server listening on port 10000 (proxy disabled - no OPENAI_API_KEY configured)');