docs: annotate ROADMAP.md Phase 6 unchecked items + update STATUS.md sprint cycle

Closes leeworks-agents/api-company#176
Closes leeworks-agents/api-company#175

ROADMAP.md Phase 6 changes:
- DNS line: add '— issues #33, #106, #150'
- PayPal line: add '— issue #19'
- Paid tiers line: add '— issues #44 (original 3), #151 (VIN Decoder)'

STATUS.md changes:
- Last updated: 2026-06-02 (sprint planning cycle #175/#176)
- New 'Completed This Cycle' section with sprint summary
- Current Blockers date updated to 2026-06-02
- Added blockers #173 (ESO source secrets) and #174 (VIN metrics)

kustomize build flux/ = PASS

ROADMAP.md

@@ -41,11 +41,11 @@ Per-API: implement Fastify/FastAPI service matching `openapi.yaml` exactly. Rapi
 - [x] `docs/legal/terms-of-service.md` (issue #40 — closed ✅)
 - [x] `docs/legal/privacy-policy.md` (issue #40 — closed ✅)
 - [x] `docs/legal/acceptable-use-policy.md` (issues #40 ✅, #89 ✅)
-- [ ] DNS: `zip.leeworks.dev`, `holidays.leeworks.dev`, `aqi.leeworks.dev`, `docs.`, `status.`, `registry.`
+- [ ] DNS: `zip.leeworks.dev`, `holidays.leeworks.dev`, `aqi.leeworks.dev`, `docs.`, `status.`, `registry.` — issues #33, #106, #150
 - [x] VIN Decoder DNS `vin.leeworks.dev` (issue #130 — closed ✅)
 - [x] VIN Decoder RapidAPI listing (issue #131 — closed ✅ as tracker; operator action required)
-- [ ] PayPal linked to RapidAPI (manual, on 18th birthday)
-- [ ] Paid tiers enabled on RapidAPI listings (manual)
+- [ ] PayPal linked to RapidAPI (manual, on 18th birthday) — issue #19
+- [ ] Paid tiers enabled on RapidAPI listings (manual) — issues #44 (original 3), #151 (VIN Decoder)
 
 ## Revenue target