Run adapter-specific test suites from the CLI #132

Description

Add an edgezero test command that dispatches the relevant test suite for a selected adapter.

CI already invokes native and provider-runtime contract suites directly with Cargo. The CLI command enum has no test variant, so that workflow is not available through the application CLI.

Steps to reproduce

1. Inspect the CLI command enum.
2. Inspect the runtime test matrix to identify existing commands/runners a test subcommand could reuse.

Expected behavior

A developer can run the documented adapter-specific test workflow from EdgeZero and receive the underlying result.

Impact

Developers must know target triples, Cargo features and runtime-specific runners.

Proposed fix

Add a narrow test-dispatch contract with adapter selection, argument forwarding and clear runner/tool availability errors.

Done when

• edgezero test selects and invokes the documented adapter suite.
• User test arguments and underlying failure status propagate predictably.
• Missing SDK/runtime tooling is reported clearly.
• Help/examples cover native and supported WASM runtime tests without requiring live credentials.

Related

• Parent: Complete CLI and local developer workflows #124.
• Existing cross-adapter validation: Run contract validation across supported adapters #137.
• CLI command surface
• Adapter runtime test matrix
• Runtime contract invocation