feat: Add conversation parameters

[kgilpin]

See https://github.com/getappmap/appmap-services/pull/70

These changes apply to navie-local only:

• Allocate thread and message ids by making API calls to api-services.
• Emit events when the agent name and classifiers are chosen.
• Update message metadata as the conversation progresses.

TODO

• [x] Local Navie should not fail if the remote service is not available. For example, if the outbound calls are blocked by proxy.
• [x] Local Navie should allocate its own thread id if thread pre-allocation fails.
• [x] Local Navie should submit message metadata. Obtain the data from the Navie interaction history.
• [x] If thread pre-allocation fails, Local Navie should not attempt to post the conversation messages metadata (because the server will not have the thread id).

[appland-release]

:tada: This PR is included in version @appland/navie-v1.12.0 :tada:

The release is available on:

• @appland/navie-v1.12.0
• GitHub release
• @appland/navie-v1.12.0

Your semantic-release bot :package::rocket:

[appland-release]

:tada: This PR is included in version @appland/appmap-v3.146.0 :tada:

The release is available on:

• @appland/appmap-v3.146.0
• GitHub release
• @appland/appmap-v3.146.0

Your semantic-release bot :package::rocket: