fix: address all 17 PR review comments

Resolves review threads:
- PRRT_kwDOO6Hdxs50fewG (setup.py): non-eliciting clients now return True
  from elicit_reset_confirmation so they can reconfigure without being blocked
- PRRT_kwDOO6Hdxs50fewM (test-tools.sh): add notification/recalculate smoke test
- PRRT_kwDOO6Hdxs50fewP (test-tools.sh): add system/array smoke test
- PRRT_kwDOO6Hdxs50fewT (resources.py): surface manager error state instead of
  reporting 'connecting' for permanently failed subscriptions
- PRRT_kwDOO6Hdxs50feAj (resources.py): use is not None check for empty cached dicts
- PRRT_kwDOO6Hdxs50fewY (integration tests): remove duplicate snapshot-registration
  tests already covered in test_resources.py
- PRRT_kwDOO6Hdxs50fewe (test_resources.py): replace brittle import-detail test
  with behavior tests for connecting/error states
- PRRT_kwDOO6Hdxs50fewh (test_customization.py): strengthen public_theme assertion
- PRRT_kwDOO6Hdxs50fewk (test_customization.py): strengthen theme assertion
- PRRT_kwDOO6Hdxs50fewo (__init__.py): correct subaction count ~88 -> ~107
- PRRT_kwDOO6Hdxs50fewx (test_oidc.py): assert providers list value directly
- PRRT_kwDOO6Hdxs50fewz (unraid.py): remove unreachable raise after vm handler
- PRRT_kwDOO6Hdxs50few2 (unraid.py): remove unreachable raise after docker handler
- PRRT_kwDOO6Hdxs50fev8 (CLAUDE.md): replace legacy 15-tool table with unified
  unraid action/subaction table
- PRRT_kwDOO6Hdxs50fev_ (test_oidc.py): assert providers + defaultAllowedOrigins
- PRRT_kwDOO6Hdxs50feAz (CLAUDE.md): update tool categories to unified API shape
- PRRT_kwDOO6Hdxs50feBE (CLAUDE.md/setup.py): update unraid_health refs to
  unraid(action=health, subaction=setup)

tests/mcporter/test-tools.sh

@@ -421,6 +421,7 @@ suite_system() {
   printf '\n%b== system (info/metrics/UPS) ==%b\n' "${C_BOLD}" "${C_RESET}" | tee -a "${LOG_FILE}"
 
   run_test "system: overview"     '{"action":"system","subaction":"overview"}'
+  run_test "system: array"        '{"action":"system","subaction":"array"}'
   run_test "system: network"      '{"action":"system","subaction":"network"}'
   run_test "system: registration" '{"action":"system","subaction":"registration"}'
   run_test "system: variables"    '{"action":"system","subaction":"variables"}'
@@ -531,8 +532,8 @@ suite_notification() {
 
   run_test "notification: overview" '{"action":"notification","subaction":"overview"}'
   run_test "notification: list"     '{"action":"notification","subaction":"list"}'
-  run_test "notification: unread"   '{"action":"notification","subaction":"unread"}'
-  # Mutating: create/archive/delete/delete_archived/archive_all/etc. — skipped
+  run_test "notification: recalculate" '{"action":"notification","subaction":"recalculate"}'
+  # Mutating: create/archive/mark_unread/delete/delete_archived/archive_all/etc. — skipped
 }
 
 suite_rclone() {