feat(network): add configureDriver() plugin hook for Dio access

[anilcancakir]

Closes #32

Summary

• Add DioNetworkDriver.configureDriver(void Function(Dio) configurator) for raw Dio instance access
• Enables SDK integrations: sentry_dio, certificate pinning, custom adapters
• Configurator callback pattern — Dio stays driver-owned, no public getter
• Not on NetworkDriver contract — Dio-specific method only

Test plan

• configureDriver() applies configurator to Dio instance
• Multiple configurators can be applied sequentially
• Full test suite: 696 tests pass
• dart analyze: zero warnings

[sentry]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Adds a Dio-specific plugin hook to the Magic network stack so SDKs/adapters can configure the underlying Dio instance without exposing it via a public getter.

Changes:

• Add DioNetworkDriver.configureDriver(void Function(Dio) configurator) to allow direct, driver-owned Dio configuration.
• Add unit tests for configureDriver() and sequential configurator usage.
• Document the new hook in framework references + basics docs, and add a CHANGELOG entry.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
lib/src/network/drivers/dio_network_driver.dart	Introduces configureDriver() hook to apply a callback to the internal Dio instance.
test/network/network_test.dart	Adds tests covering configurator invocation and multiple configurators.
skills/magic-framework/references/http-network.md	Documents the Dio driver plugin hook and how to access it.
doc/basics/http-client.md	Adds end-user docs for the new driver plugin hook usage.
CHANGELOG.md	Adds an Unreleased feature entry for the new hook.