fix(l10n): plain approvals hint, real plurals, de-jargoned chain pill

- approvals inbox hint explains human approval in plain words
  instead of citing system.approval@^0
- doctor summary counts use ICU plurals (1 module / n modules)
- audit chain pill says 'Integrity chain verified' instead of 'v1'

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

lib/l10n/app_en.arb

@@ -1085,7 +1085,7 @@
   "approvalsTabPending": "Pending",
   "approvalsTabHistory": "History",
   "approvalsInboxZero": "Inbox zero",
-  "approvalsInboxHint": "All caught up. New `system.approval@^0` steps land here automatically.",
+  "approvalsInboxHint": "All caught up. When a flow asks for a human approval, the request appears here automatically.",
   "approvalsReloadTooltip": "Reload",
   "approvalsPillPending": "pending",
   "approvalsPillApproved": "approved",
@@ -1173,7 +1173,7 @@
   "doctorSummaryApprovals": "Approvals",
   "doctorSummaryAudit": "Audit",
   "doctorSummaryServices": "Services",
-  "doctorSummaryCapabilities": "{n} capabilities",
+  "doctorSummaryCapabilities": "{n, plural, =1{1 capability} other{{n} capabilities}}",
   "@doctorSummaryCapabilities": {
     "placeholders": {
       "n": {
@@ -1194,7 +1194,7 @@
     }
   },
   "doctorSummaryDeclared": "declared",
-  "doctorModulesPanelSummary": "{n} modules · {m} capabilities",
+  "doctorModulesPanelSummary": "{n, plural, =1{1 module} other{{n} modules}} · {m, plural, =1{1 capability} other{{m} capabilities}}",
   "@doctorModulesPanelSummary": {
     "placeholders": {
       "n": {
@@ -1249,7 +1249,7 @@
       }
     }
   },
-  "doctorChainPillOk": "Integrity chain v1",
+  "doctorChainPillOk": "Integrity chain verified",
   "doctorChainPillTamper": "TAMPER",
   "doctorVerifyNow": "Verify now",
   "doctorRestart": "Restart",