feat(delegate-job): bump default --timeout 600s -> 3600s (1h wall-clock budget)

Changed 11 locations across 5 files:
- scripts/registry.py: timeout_sec dataclass default + argparse default
- scripts/job_subscriber.py: help text + fallback default
- SKILL.md: 4 recommended invocation examples
- registry.md: JSON example + CLI example
- tmux-agent-orchestrate-delegate-job: bash wrapper TIMEOUT var

--idle-timeout 120s preserved unchanged.
Rationale: 10min default was too short for deep analysis / multi-file
generation tasks; 1h aligns with long-running agent delegation patterns.

skills/tmux-agent-orchestrate-delegate-job/scripts/job_subscriber.py

@@ -123,7 +123,7 @@ def main(argv=None) -> int:
     target.add_argument("--wait-any", action="store_true",
                         help="watch every pending/running job in the registry")
     parser.add_argument("--timeout", type=float, default=None,
-                        help="wall-clock budget in seconds (default: job.timeout_sec or 600)")
+                        help="wall-clock budget in seconds (default: job.timeout_sec or 3600)")
     parser.add_argument("--idle-timeout", type=float, default=None,
                         help="max seconds with no new event (default: job.idle_timeout_sec or 120)")
     parser.add_argument("--expect-retention", action="store_true",
@@ -148,7 +148,7 @@ def main(argv=None) -> int:
 
     # Resolve timeouts from CLI, falling back to the (first) job's settings.
     base_job = jobs[0]
-    wall_timeout = args.timeout if args.timeout is not None else float(base_job.get("timeout_sec", 600))
+    wall_timeout = args.timeout if args.timeout is not None else float(base_job.get("timeout_sec", 3600))
     idle_timeout = args.idle_timeout if args.idle_timeout is not None else float(base_job.get("idle_timeout_sec", 120))
 
     # All watched jobs share a broker in practice; connect using the first