`.service` subpkg

[goodboy]

Move all actor-service control APIs and the service manager (basically all the stuff that was in piker._daemon) into a new piker.service sub package; this will serve (get it..) as the high-level actor-service orchestration sub-system, the business logic for piker's distributed architecture and runtime deployment.

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Of note,

• includes improvements to .service._ahab which repair a regression: a silent startup failure with marketstore due to the log processing poll sleep period change..
  • adds proper async log msg proxying without blocking the ahabd supervisor task
  • proxies through pikerd logging correctly to the docker super code in general..
• [x] moved the _ahab.py docker supervisor into the sub-package as well since it is literally an external, containerized service supervisor 😂
• [x] moved both the .data.elastix and .marketstore mods here as well until we figure out how to formalize our storage layer subsystems, and since most of that code is related to db interaction/mangement vs. data processing.

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ToDo:

• [ ] ~extend the tests for both dbs to have a client connect and do something or other..~
• [ ] ~add cancellation tests for the dockerized services~ => moved these to a follow up testing task #487
• [x] consider breaking out the daemon endpoints to a ._daemon.py module in each sub-system package?
  • [x] at the least move the group into a .service._daemon
  • [ ] ~eg. pikerd.data._daemon contains the routines for spawning the brokerd actor?~ => moved to #488
  • [x] move Services api into it's own module?
  • [x] move the startup machinery into _runtime.py? ( chose .service._actor_runtime.py instead )
  • [ ] ~move the ._exec.py stuff (which is more or less just Qt runtime startup) into this pkg as well?~ => also moved to #488
• [x] make test harness use the tmp_dir fixure for our config dir path during testing
  • required augmenting the runtime init to passthrough data to tractor._state._runtime_vars

[goodboy]

🙏🏼 to da CI gawdz

[goodboy]

nothing like hanging for 40 mins

[goodboy]

THERE. moved all oustanding bullets to new follow up issues 🏄🏼

• 487

• 488

So whoever decides to review this once more and decides we gud, please merge. If not i'll land later tonight 💥

[goodboy]

Heh, i can tell y'all aren't testing non-disti mode.. 😂