feat(doctor): deep-link findings to the page where they are actioned

Doctor findings used to be dead-end statements — 'approvals
waiting for review' left the operator to find the approvals inbox
on their own. Every finding with a dedicated surface is now one
tap away from it:

- summary tiles: modules -> store, approvals -> approvals inbox,
  audit chain -> audit log (chevron affordance, tooltip + semantics
  button; the services tile stays plain — no dedicated page)
- modules/approvals panel rows link the same way
- the event-log headline opens the audit page next to the
  existing verify button
- host-services empty state gains a 'view the configuration'
  button opening the in-Studio config viewer the hint refers to
- the update banner's release-notes URL is now an underlined,
  clickable link instead of dead text

Tiles and the panel are public callback-driven widgets so the
widget tests pump them without a live hub. New DE+EN link labels.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_en.arb

@@ -1208,6 +1208,11 @@
     }
   },
   "doctorSummaryDeclared": "declared",
+  "doctorLinkStore": "Open the store",
+  "doctorLinkApprovals": "Open approvals",
+  "doctorLinkAudit": "Open the audit log",
+  "doctorLinkConfig": "View the configuration",
+  "doctorLinkReleaseNotes": "Open the release notes in the browser",
   "doctorModulesPanelSummary": "{n, plural, =1{1 module} other{{n} modules}} · {m, plural, =1{1 capability} other{{m} capabilities}}",
   "@doctorModulesPanelSummary": {
     "placeholders": {