refactor(backend): rename consolidated_launch -> infra_launch (0081 review)

Mechanical rename addressing review 6141 on #519: "consolidated launch" was
unclear about what it composes. Rename the per-backend module
`consolidated_launch.py` -> `infra_launch.py` and the error
`ConsolidatedLaunchError` -> `InfraLaunchError` across all three backends and
their callers/tests. Unify the three identical per-backend error classes into
one `InfraLaunchError` defined in `backend/base.py` (re-exported by each
`infra_launch`) so the base backend can raise and catch a single shared type —
groundwork for the base owning the gateway-attach flow.

Add a glossary entry defining **infra** = the per-host gateway + orchestrator
service pair every bottle attaches to.

No behavior change.

Refs #516, #519.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

bot_bottle/backend/docker/backend.py

@@ -142,5 +142,5 @@ class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanup
         return _enumerate.enumerate_active()
 
     def attach_bottled_agents_to_gateway(self) -> None:
-        from .consolidated_launch import attach_bottled_agents_to_gateway
+        from .infra_launch import attach_bottled_agents_to_gateway
         attach_bottled_agents_to_gateway()

bot_bottle/backend/docker/infra_launch.py

@@ -25,16 +25,13 @@ from ...gateway import GATEWAY_NETWORK
 from .infra import INFRA_NAME, DockerInfraService
 from ...orchestrator.store.secret_store import ENV_VAR_SECRET_NAME
 from ...orchestrator.reprovision import reprovision_bottles
+from ..base import InfraLaunchError
 from ..provision_bottle import deprovision_bottle, provision_bottle
 from ..util import AGENT_CA_PATH
 from .gateway_transport import DockerGatewayTransport
 from .gateway_net import next_free_ip
 
 
-class ConsolidatedLaunchError(RuntimeError):
-    """The consolidated register/provision sequence could not complete."""
-
-
 @dataclass(frozen=True)
 class LaunchContext:
     """What the agent container needs to join the shared gateway."""
@@ -56,7 +53,7 @@ def _network_cidr(network: str) -> str:
     ])
     cidr = proc.stdout.strip()
     if proc.returncode != 0 or not cidr:
-        raise ConsolidatedLaunchError(
+        raise InfraLaunchError(
             f"gateway network {network} has no subnet: {proc.stderr.strip()}"
         )
     return cidr
@@ -80,13 +77,13 @@ def _push_ca_to_container(container: str, ca_pem: str) -> None:
     """Replace one running agent container's trusted gateway CA with `ca_pem`
     and rebuild its trust store via `docker cp` + `docker exec`. Unconditional
     install — there is one gateway, so no fingerprint match is needed. Raises
-    `ConsolidatedLaunchError` on failure."""
+    `InfraLaunchError` on failure."""
     mkdir = run_docker(
         ["docker", "exec", container, "mkdir", "-p",
          "/usr/local/share/ca-certificates"]
     )
     if mkdir.returncode != 0:
-        raise ConsolidatedLaunchError(
+        raise InfraLaunchError(
             f"CA push to {container} failed (mkdir): {mkdir.stderr.strip()}"
         )
     with tempfile.NamedTemporaryFile("w", suffix=".crt") as tmp:
@@ -94,7 +91,7 @@ def _push_ca_to_container(container: str, ca_pem: str) -> None:
         tmp.flush()
         cp = run_docker(["docker", "cp", tmp.name, f"{container}:{AGENT_CA_PATH}"])
     if cp.returncode != 0:
-        raise ConsolidatedLaunchError(
+        raise InfraLaunchError(
             f"CA push to {container} failed (cp): {cp.stderr.strip()}"
         )
     ex = run_docker(
@@ -102,7 +99,7 @@ def _push_ca_to_container(container: str, ca_pem: str) -> None:
          f"chmod 644 {AGENT_CA_PATH} && update-ca-certificates"]
     )
     if ex.returncode != 0:
-        raise ConsolidatedLaunchError(
+        raise InfraLaunchError(
             f"CA push to {container} failed (update-ca-certificates): "
             f"{ex.stderr.strip()}"
         )
@@ -138,7 +135,7 @@ def attach_bottled_agents_to_gateway(
         try:
             _push_ca_to_container(name, ca_pem)
             reconciled += 1
-        except (OSError, ConsolidatedLaunchError) as exc:
+        except (OSError, InfraLaunchError) as exc:
             log.info(f"CA reconcile skipped for {name}: {exc}")
     if reconciled:
         log.info(
@@ -255,5 +252,5 @@ __all__ = [
     "launch_consolidated",
     "attach_bottled_agents_to_gateway",
     "deprovision_consolidated",
-    "ConsolidatedLaunchError",
+    "InfraLaunchError",
 ]

bot_bottle/backend/docker/launch.py

@@ -61,7 +61,7 @@ from .compose import (
 )
 from .consolidated_compose import consolidated_agent_compose
 from ...orchestrator.store.config_store import resolve_teardown_timeout
-from .consolidated_launch import launch_consolidated, deprovision_consolidated
+from .infra_launch import launch_consolidated, deprovision_consolidated
 from .infra import INFRA_NAME
 from .gateway import DockerGateway
 from ... import resources