fix(consumer): Respect timeout config in lib_curl & fork_curl

[AleMercadal]

This PR makes the documented timeout (milliseconds) passed via config options in PostHog::init effective for event delivery.

PostHog::init($token, [
  'host' => 'http://localhost:8030',
  'consumer' => 'lib_curl', // or 'fork_curl'
  'timeout' => 1000,
]);

What’s included

• LibCurl: propagate timeout (ms) to the HttpClient constructor (default remains 10000 ms).
• ForkCurl: convert timeout ms → integer seconds using ceil and append curl flags:
  • --max-time <seconds> (curl docs)
  • --connect-timeout <seconds> (curl docs)

Backwards compatibility

• If timeout is not specified or is <= 0 it is treated as unlimited. This matches previous behavior.
• If timeout is > 0, events captured via PostHog::capture(...) will now honor the configured timeout for both lib_curl and fork_curl consumers. Previously, this value was ignored by those consumers, so requests could wait longer than intended.
• No public API changes.

Tests

• LibCurl: assert via Reflection that HttpClient receives the configured options.
• ForkCurl: spy consumer asserts curl command includes/omits timeout flags based on config.

[Copilot]

Pull Request Overview

This PR fixes the timeout configuration option to be properly respected by both lib_curl and fork_curl consumers in PostHog PHP SDK.

• Propagates the timeout option from client configuration to the underlying HTTP transport layers
• Adds timeout support to fork_curl consumer by converting milliseconds to seconds and using curl's timeout flags
• Maintains backward compatibility with existing behavior when timeout is not specified

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
lib/HttpClient.php	Adds default timeout constant for consistency
lib/Consumer/LibCurl.php	Passes timeout option to HttpClient constructor
lib/Consumer/ForkCurl.php	Adds timeout conversion logic and curl command flags
lib/Client.php	Uses new HttpClient constant for default timeout
test/MockedForkCurlConsumer.php	Test utility to mock curl command execution
test/ConsumerLibCurlTest.php	Tests timeout propagation via reflection
test/ConsumerForkCurlTest.php	Tests timeout behavior with mocked consumer

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