feat(cli): extend --detach to workflow approve/reject/resume control verbs

CLAUDE.md

@@ -259,6 +259,10 @@ bun run cli workflow abandon <run-id>
 #   list, status, runs, get, approve, reject, abandon, resume.
 # For approve/reject/resume, --json records/validates the decision and returns a
 # clean JSON line WITHOUT the inline auto-resume (drive continuation separately).
+# Adding --detach INVERTS that: the child re-invokes without --json, so it takes
+# the inline path and DOES continue the run (just outside your shell). The ack
+# carries `continues: true` so an automation knows it no longer owns continuation.
+bun run cli workflow approve <run-id> --detach --json
 
 # Delete old workflow run records (default: 7 days)
 bun run cli workflow cleanup

packages/cli/src/cli.ts

@@ -161,7 +161,7 @@ Options:
   --quiet, -q                Reduce log verbosity to warnings and errors only
   --verbose, -v              Show debug-level output
   --json                     Output machine-readable JSON (list/status/get/runs/approve/reject/abandon/resume)
-  --detach                   Run 'workflow run' in a detached background child (returns immediately)
+  --detach                   Run 'workflow run'/'approve'/'reject'/'resume' in a detached background child (returns immediately)
   --all                      For 'workflow runs': list across all projects (ignore cwd scope)
   --status <status>          For 'workflow runs': filter to one status (running, completed, failed, ...)
   --limit <n>                For 'workflow runs': max rows (default 20)
@@ -618,7 +618,7 @@ async function main(): Promise<number> {
               console.error('Usage: archon workflow resume <run-id>');
               return 1;
             }
-            await workflowResumeCommand(resumeRunId, jsonFlag, effectiveCwd);
+            await workflowResumeCommand(resumeRunId, jsonFlag, effectiveCwd, detachFlag);
             break;
           }
 
@@ -645,7 +645,13 @@ async function main(): Promise<number> {
             const rawApproveComment =
               (values.comment as string | undefined) || positionals.slice(3).join(' ');
             const approveComment = rawApproveComment.length > 0 ? rawApproveComment : undefined;
-            await workflowApproveCommand(approveRunId, approveComment, jsonFlag, effectiveCwd);
+            await workflowApproveCommand(
+              approveRunId,
+              approveComment,
+              jsonFlag,
+              effectiveCwd,
+              detachFlag
+            );
             break;
           }
 
@@ -658,7 +664,13 @@ async function main(): Promise<number> {
             const rawRejectReason =
               (values.reason as string | undefined) || positionals.slice(3).join(' ');
             const rejectReason = rawRejectReason.length > 0 ? rawRejectReason : undefined;
-            await workflowRejectCommand(rejectRunId, rejectReason, jsonFlag, effectiveCwd);
+            await workflowRejectCommand(
+              rejectRunId,
+              rejectReason,
+              jsonFlag,
+              effectiveCwd,
+              detachFlag
+            );
             break;
           }