DC-044: fix WorkflowEngine healthCheckService — servicesStateManager.getState bug

The bundled-workflows.js:310 call site used a non-existent .getState()
method AND forgot to await. The Promise short-circuited via '|| []' to an
empty array, so every health-check-on-interval workflow ran every 5 min
reporting 'Action health-check failed: servicesStateManager.getState is
not a function' while silently iterating over zero services. Visible on
both DNS2 (production) and dc-contabo-de (test server) — same code, same
bug, same log spam.

Fix: 'await servicesStateManager.read().catch(() => []) || []' — uses the
actual async method, returns empty array on read() failure (corrupt or
missing state file shouldn't break the workflow), preserves the original
short-circuit guard.

New regression test __tests__/bundled-workflows-health-check.test.js with
5 cases:
1. uses .read() not the non-existent .getState() — does not throw
2. returns checked/healthy counts from read() output
3. gracefully degrades if read() throws — empty services list, no crash
4. servicesStateManager absent on ctx → no crash, empty result
5. single service (non-template serviceId) path still works

Tests: 1219/1219 pass (1214 baseline + 5 new). ESLint: clean for the new
file. Test fixture note: had to clearInterval the constructor's
scheduledJobs so Jest could exit cleanly — scheduled workflows are not
under test here.

BACKLOG.md

@@ -248,7 +248,12 @@
 
 Tickets DC-033 through DC-041 were added after the DNS2 v1.14.4 / v1.14.8 / 0.0.0 incident. They are grounded in real evidence from that session — see DC-033's details for the full chain of reasoning (cross-checked by main agent + z.ai subagent).
 
-## Coordination Rules
+### DC-044: Fix WorkflowEngine healthCheckService — servicesStateManager.getState bug (silent every-5min error spam)
+- **status:** in-progress
+- **owner:** hermes
+- **details:** `src/recipes/bundled-workflows.js:310` calls `servicesStateManager.getState()` which doesn't exist (StateManager exposes `read()`, not `getState()`). Combined with a missing `await`, the call returned a Promise (truthy), short-circuited via `|| []` to an empty array, then `for (const service of services)` silently iterated over zero services. Net effect: every `health-check-on-interval` workflow ran every 5 min, reported `Action health-check failed: servicesStateManager.getState is not a function`, sent a "Health check failed for {{serviceId}}" notification (with the unresolved template!), and produced `checked: 0, healthy: 0` results. Visible on BOTH DNS2 (production, 4 days) and test server dc-contabo-de (9 days). Fix: call `await servicesStateManager.read().catch(() => [])` — proper async + corruption-tolerant.
+- **impact:** Workflow health checks now actually check container health, instead of silently reporting 0/0 every cycle. Stops the "Health check failed" notification spam.
+- **result:** Fixed in src/recipes/bundled-workflows.js. New regression test `__tests__/bundled-workflows-health-check.test.js` — 5 cases (uses .read() not .getState(), correct counts, graceful degrade on read() throw, no servicesStateManager on ctx, single-service path). Full suite: 1219/1219 pass (+5 new).
 
 1. **Always `git pull` before starting work.**
 2. **Claim a task by editing BACKLOG.md:** set `status: in-progress` and `owner: hermes` or `owner: krystie`.