case 4712 - customer contacts work only with their own service requests and units

Step 3 of 4712 (security review F14). The Customer role has change rights on
service requests and nothing checked whose they were. For customer contacts:
another customer's request is not found (read, update, delete); creating or
moving a request to a customer the contact does not own is refused (403); a
contact's request is always requested by that contact. unit/customerunit adds
units only to the contact's own customer (or one of its head office's).

Checked: another customer's request 404 (was 200), create for another customer
403, own request created and deleted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

devdocs/modernization/NET10-PORT.md

@@ -179,7 +179,7 @@ John's "next release" cases for AyaNova (exported 2026-10-24). Each is its own s
 |---|---|---|
 | 4710 | 2FA step requires the temp token (raven and sockeye) | F5, F41. **Done**: raven `141bdeb8` (proof script 401 on both bypasses; integration test `TwoFactor` in `8e5eec4`); sockeye `f7c1d7c` (same checks on local Sockeye with a temporary user). Sockeye to be deployed to its new droplet by John; 2FA can be turned back on once each server runs the fix |
 | 4711 | JWT secret setting removed: the server generates its signing key once into `jwt-signing.key` in the data folder (4698 folded in) | F1. **Done** (placeholder-forged token 401; key survives restart; auth tests pass). Hosted setup script's secret step now does nothing; tidy later in `sockeye-client` |
-| 4712 | Customer contact route allowlist + ownership checks | F13, F14, F15, F16, F17. In 6 steps: 1 allowlist **done**; 2 work-order ownership **done**; 3 CSR and unit ownership; 4 pick lists for contacts; 5 schedule staff rights; 6 notification subscriptions |
+| 4712 | Customer contact route allowlist + ownership checks | F13, F14, F15, F16, F17. In 6 steps: 1 allowlist **done**; 2 work-order ownership **done**; 3 CSR and unit ownership **done**; 4 pick lists for contacts; 5 schedule staff rights; 6 notification subscriptions |
 | 4713 | Contact users limited to customer roles | F28 |
 | 4715 | Download file names checked (one helper) | F21. **Done** (`FileUtil.FullPathInFolderOrNull` in temp/backup exists checks and both log routes; test `DownloadNames`) |
 | 4716 | Pick-list search text as SQL parameters | F18. **Done** (`@plq`/`@pltag` parameters; test `FetchUserPickListAutoCompleteApostrophe` fails on the old code, passes now; 9/9 pick-list tests) |

devdocs/modernization/SECURITY-REVIEW.md

@@ -198,7 +198,7 @@ take the next free number; a fixed or accepted finding keeps its ID and changes
 | F18 | Critical | **fixed in case 4716** | Pick-list search text is put into SQL without escaping; any logged-in user can reach it |
 | F26 | Critical | **fixed in case 4717** | KPI `interval` criterion is put into SQL unchecked; reachable by staff users down to TechRestricted |
 | F13 | High | **fixed in case 4712** | Customer contacts can open any customer's work order (customer view, customer report, attachments) by id |
-| F14 | High | **confirmed** | Customer contacts can read, and by code change, delete and create, any customer's service requests |
+| F14 | High | **fixed in case 4712** | Customer contacts can read, and by code change, delete and create, any customer's service requests |
 | F15 | High | **confirmed** | Customer contacts can list every customer (and vendors, users, parts...) with any pick-list columns, phones and emails included |
 | F16 | High | **confirmed** | `schedule/svc` and `schedule/user` have no role check: anyone logged in sees the whole service schedule |
 | F17 | Medium | confirmed (code) | Notification subscriptions accept any `UserId`, and object events reach subscribers without a rights check: record names to any email address |