docs(skills): refresh crabbox AWS workflow

.agents/skills/crabbox/SKILL.md

@@ -21,7 +21,7 @@ runner class, reusable warm state, or a Blacksmith alternative.
   `../crabbox/bin/crabbox` when present; the user PATH shim can be stale:
   `command -v crabbox; ../crabbox/bin/crabbox --version; ../crabbox/bin/crabbox --help | sed -n '1,90p'`.
 - Install with `brew install openclaw/tap/crabbox`; auth is required before use:
-  `printf '%s' "$CRABBOX_COORDINATOR_TOKEN" | crabbox login --url https://crabbox-coordinator.steipete.workers.dev --provider aws --token-stdin`.
+  `printf '%s' "$CRABBOX_COORDINATOR_TOKEN" | crabbox login --url https://crabbox.openclaw.ai --provider aws --token-stdin`.
 - On macOS the user config is `~/Library/Application Support/crabbox/config.yaml`;
   it must include `broker.url`, `broker.token`, and usually `provider: aws`.
 
@@ -31,6 +31,7 @@ AWS/owned-capacity flow for `pnpm` tests:
 
 ```sh
 pnpm crabbox:warmup -- --idle-timeout 90m
+pnpm crabbox:warmup -- --provider aws --class beast --market on-demand --idle-timeout 90m
 pnpm crabbox:hydrate -- --id <cbx_id-or-slug>
 pnpm crabbox:run -- --id <cbx_id-or-slug> --timing-json --shell -- "env NODE_OPTIONS=--max-old-space-size=4096 OPENCLAW_TEST_PROJECTS_PARALLEL=6 OPENCLAW_VITEST_MAX_WORKERS=1 OPENCLAW_VITEST_NO_OUTPUT_TIMEOUT_MS=900000 pnpm test:changed"
 ```
@@ -63,6 +64,8 @@ crabbox ssh --id <id-or-slug>
 Use `--debug` on `run` when measuring sync timing.
 Use `--timing-json` on warmup, hydrate, and run when comparing AWS and
 blacksmith-testbox timings.
+Use `--market spot|on-demand` on AWS warmup or one-shot run when testing quota
+or capacity behavior without changing `.crabbox.yaml`.
 
 ## Hydration Boundary
 
@@ -79,3 +82,6 @@ workflow and generic lease/sync behavior in Crabbox.
 Crabbox has coordinator-owned idle expiry and local lease claims, so OpenClaw
 does not need a custom ledger. Default idle timeout is 30 minutes unless config
 or flags set a different value. Still stop boxes you created when done.
+If `crabbox list` prints `orphan=no-active-lease`, treat it as an operator
+review hint; do not delete `keep=true` machines without checking provider and
+coordinator state.