Add schedule promote for atomic cadence promotion

Orchestrates cadence.yml, activity-definitions, fleet schedule.yml,
and activity-core sync in one command. Supports --dry-run and
--fleet-only for repairing partial promotions.

src/kaizen_agentic/cli.py

@@ -23,6 +23,7 @@ from .integrations.event_bus import (
 from .integrations.helix import HelixCorrelationAdapter, enrich_helix_correlation
 from .metrics import MetricsStore, OptimizerStore, performance_summary_markdown
 from .optimization import OptimizationLoop, MIN_SAMPLES_FOR_RECOMMENDATIONS
+from .engagement_promote import promote_engagement
 from .schedule import (
     ScheduleError,
     default_schedule_yaml,
@@ -1534,6 +1535,105 @@ def schedule_init(
     click.echo("  Validate with: kaizen-agentic schedule validate")
 
 
+@schedule.command("promote")
+@click.option(
+    "--engagement-repo",
+    "-e",
+    required=True,
+    type=click.Path(exists=True, file_okay=False, path_type=Path),
+    help="Customer engagement repo (e.g. coulomb-loop)",
+)
+@click.option(
+    "--engagement",
+    default="coulomb-loop",
+    show_default=True,
+    help="Engagement slug written into fleet schedule.yml headers",
+)
+@click.option(
+    "--to-phase",
+    type=click.Choice(["stabilize", "operate"]),
+    default=None,
+    help="Target phase (default: next phase after current)",
+)
+@click.option("--loop", default=None, help="Promote a single loop id only")
+@click.option("--dry-run", is_flag=True, help="Print planned actions without writing")
+@click.option("--skip-cadence", is_flag=True, help="Skip loops/*/cadence.yml updates")
+@click.option(
+    "--skip-definitions", is_flag=True, help="Skip activity-definitions transforms"
+)
+@click.option("--skip-fleet", is_flag=True, help="Skip .kaizen/schedule.yml on roster")
+@click.option("--skip-sync", is_flag=True, help="Skip activity-core definition sync")
+@click.option(
+    "--fleet-only",
+    is_flag=True,
+    help="Only update fleet schedule.yml (+ sync unless --skip-sync)",
+)
+@click.option(
+    "--activity-core",
+    type=click.Path(exists=True, file_okay=False, path_type=Path),
+    default=None,
+    help="activity-core repo root (or ACTIVITY_CORE_ROOT env)",
+)
+def schedule_promote(
+    engagement_repo: Path,
+    engagement: str,
+    to_phase: Optional[str],
+    loop: Optional[str],
+    dry_run: bool,
+    skip_cadence: bool,
+    skip_definitions: bool,
+    skip_fleet: bool,
+    skip_sync: bool,
+    fleet_only: bool,
+    activity_core: Optional[Path],
+):
+    """Atomically promote cadence across cadence.yml, definitions, fleet, and sync."""
+    if fleet_only:
+        skip_cadence = True
+        skip_definitions = True
+        if to_phase is None:
+            to_phase = "operate"
+
+    result = promote_engagement(
+        engagement_repo,
+        engagement_slug=engagement,
+        to_phase=to_phase,
+        loop=loop,
+        dry_run=dry_run,
+        skip_cadence=skip_cadence,
+        skip_definitions=skip_definitions,
+        skip_fleet=skip_fleet,
+        skip_sync=skip_sync,
+        activity_core_root=activity_core,
+    )
+
+    if dry_run:
+        click.echo("Dry run — planned actions:")
+    else:
+        click.echo("Promotion complete — actions:")
+
+    by_layer: dict[str, list[str]] = {}
+    for action in result.actions:
+        by_layer.setdefault(action.layer, []).append(action.description)
+
+    for layer in ("cadence", "definitions", "fleet", "sync"):
+        items = by_layer.get(layer)
+        if items:
+            click.echo(f"\n[{layer}]")
+            for item in items:
+                click.echo(f"  • {item}")
+
+    if result.errors:
+        click.echo("\nWarnings / errors:", err=True)
+        for err in result.errors:
+            click.echo(f"  ! {err}", err=True)
+        if not result.actions:
+            sys.exit(1)
+
+    if not result.actions and not result.errors:
+        click.echo("Nothing to do — layers already aligned.")
+
+
 @schedule.command("list")
 @click.option("--target", "-t", default=".", help="Project root (default: current)")
 @click.option("--all", "show_all", is_flag=True, help="Include disabled entries")