feat(docker): consolidate to single infra container under gateway_init supervise tree

Collapses the two-container Docker model (gateway + orchestrator) into one
bot-bottle-infra container, matching the macOS and Firecracker backends.

- Dockerfile.infra: now a shared gateway+orchestrator base (COPY bot_bottle
  from orchestrator build, no CMD override)
- Dockerfile.infra.fc: new Firecracker-specific layer (buildah/crun/netavark)
- gateway_init: adds orchestrator daemon with _OPT_IN_DAEMONS gating so it
  only starts when BOT_BOTTLE_GATEWAY_DAEMONS explicitly includes it
- orchestrator/lifecycle: OrchestratorService manages one infra container;
  builds orchestrator (intermediate) then infra; live source bind-mounted at
  /bot-bottle-src with PYTHONPATH so the subprocess uses the checkout
- backend/consolidated_util: extracts provision_bottle + teardown_consolidated
  shared across all three backends; removes duplication in docker/fc/macos
  consolidated_launch modules
- firecracker/infra_vm: builds four images (orchestrator→gateway→infra→infra.fc)
- All unit tests updated and passing (1878 tests)
- PRD status: Draft → Active

bot_bottle/backend/macos_container/consolidated_launch.py

@@ -37,8 +37,7 @@ from dataclasses import dataclass
 from ...egress import EgressPlan
 from ...git_gate import GitGatePlan
 from ...orchestrator.client import OrchestratorClient
-from ...orchestrator.registration import registration_inputs
-from ..docker.gateway_provision import deprovision_git_gate, provision_git_gate
+from ..consolidated_util import provision_bottle, teardown_consolidated as _teardown_util
 from .gateway import GATEWAY_NETWORK
 from .gateway_provision import AppleGatewayTransport
 from .infra import MacosInfraService, OrchestratorStartError
@@ -103,17 +102,10 @@ def register_agent(
     container — it is the attribution key the gateway resolves policy by.
     Raises on failure; the caller tears down."""
     client = OrchestratorClient(endpoint.orchestrator_url)
-    inputs = registration_inputs(egress_plan)
-    reg = client.register_bottle(
-        source_ip, image_ref=image_ref, policy=inputs.policy,
-        metadata=inputs.metadata, tokens=tokens,
+    reg = provision_bottle(
+        client, source_ip, egress_plan, git_gate_plan, AppleGatewayTransport(),
+        image_ref=image_ref, tokens=tokens,
     )
-    try:
-        provision_git_gate(AppleGatewayTransport(), reg.bottle_id, git_gate_plan)
-    except Exception:
-        # Roll the registration back so a provisioning failure leaves no orphan.
-        client.teardown_bottle(reg.bottle_id)
-        raise
     return LaunchContext(
         bottle_id=reg.bottle_id,
         identity_token=reg.identity_token,
@@ -128,8 +120,7 @@ def teardown_consolidated(bottle_id: str, *, orchestrator_url: str) -> None:
     """Deregister the bottle and remove its git-gate state from the gateway.
     Both steps are idempotent so this is safe from a cleanup trap. Does NOT
     stop the gateway — it's a persistent per-host singleton."""
-    OrchestratorClient(orchestrator_url).teardown_bottle(bottle_id)
-    deprovision_git_gate(AppleGatewayTransport(), bottle_id)
+    _teardown_util(bottle_id, AppleGatewayTransport(), orchestrator_url=orchestrator_url)
 
 
 __all__ = [