refactor: fix all 105 PHPStan 2 strict type findings across core and modules

Resolve all non-false-positive PHPStan 2 findings, reducing the baseline
from 486 to 382 entries (only unused-public false positives remain).

Categories fixed:
- Remove 39 redundant type checks (is_string, is_array, is_object, method_exists)
- Remove 12 no-op array_values() on already-sequential lists
- Simplify 13 null-coalesce on guaranteed offsets
- Remove 8 always-true instanceof checks
- Replace 12 redundant test assertions (assertTrue(true) → addToAssertionCount)
- Simplify 6 unnecessary nullsafe operators (?-> → ->)
- Fix 6 always-true !== '' comparisons
- Fix remaining: unset.offset, return.unusedType, staticMethod narrowing

53 files changed across core/, modules/, pages/, and tests/.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/Support/helpers/app.php

@@ -487,11 +487,6 @@ function appBuildLayoutNavContext(array $layoutAuth, array $session, array $quer
         $provider = \MintyPHP\App\Module\ModuleClassResolver::resolve($container, $providerClass);
         if ($provider instanceof \MintyPHP\App\Module\Contracts\LayoutContextProvider) {
             $providerData = $provider->provide($session, $container);
-            if (!is_array($providerData)) {
-                throw new \RuntimeException(
-                    "Layout context provider '{$providerClass}' must return an array."
-                );
-            }
             $layoutNav = appMergeLayoutNavProviderData($layoutNav, $providerData, $providerClass);
         }
     }

core/Support/helpers/grid.php

@@ -206,9 +206,6 @@ function gridSplitToolbarSchema(array $toolbarSchema, array $searchKeys = []): a
     $search = [];
     $drawer = [];
     foreach ($toolbarSchema as $field) {
-        if (!is_array($field)) {
-            continue;
-        }
         $key = trim((string) ($field['key'] ?? ''));
         $isSearch = (bool) ($field['search'] ?? false) || ($key !== '' && isset($searchKeyMap[$key]));
         if ($isSearch) {
@@ -231,9 +228,6 @@ function gridSchemaByKey(array $toolbarSchema): array
 {
     $schemaByKey = [];
     foreach ($toolbarSchema as $field) {
-        if (!is_array($field)) {
-            continue;
-        }
         $key = trim((string) ($field['key'] ?? ''));
         if ($key === '') {
             continue;
@@ -255,9 +249,6 @@ function gridBuildToolbarFilterState(array $toolbarSchema, array $filterState):
 {
     $state = [];
     foreach ($toolbarSchema as $field) {
-        if (!is_array($field)) {
-            continue;
-        }
 
         $key = trim((string) ($field['key'] ?? ''));
         if ($key === '') {
@@ -347,9 +338,6 @@ function gridOptionMapFromItems(array $items): array
 {
     $map = [];
     foreach ($items as $item) {
-        if (!is_array($item)) {
-            continue;
-        }
         $id = trim((string) ($item['id'] ?? ''));
         if ($id === '') {
             continue;
@@ -370,9 +358,6 @@ function gridOptionMapFromAllowed(array $field): array
 {
     $map = [];
     foreach ((array) ($field['allowed'] ?? []) as $item) {
-        if (!is_array($item)) {
-            continue;
-        }
         $id = trim((string) ($item['id'] ?? ''));
         if ($id === '') {
             continue;

core/Support/helpers/request.php

@@ -101,9 +101,6 @@ function requestNormalizeSafeInternalTarget(string $target, int $maxDepth = 5):
 
     $queryParams = [];
     parse_str((string) ($safeParts['query'] ?? ''), $queryParams);
-    if (!is_array($queryParams)) {
-        $queryParams = [];
-    }
     $nestedReturnTarget = requestExtractNestedReturnValue($queryParams['return'] ?? null);
     unset($queryParams['return']);
     $query = http_build_query($queryParams);
@@ -185,9 +182,6 @@ function requestPathWithReturnTarget(string $path, string $returnTarget = ''): s
     }
     $queryParams = [];
     parse_str((string) ($parts['query'] ?? ''), $queryParams);
-    if (!is_array($queryParams)) {
-        $queryParams = [];
-    }
     unset($queryParams['return']);
     $queryParams['return'] = $normalizedReturnTarget;
     $query = http_build_query($queryParams);

core/Support/helpers/ui.php

@@ -146,9 +146,6 @@ function selectFilter(
 function renderGridFilterToolbar(array $schema, array $active = [], array $optionSets = []): void
 {
     foreach ($schema as $field) {
-        if (!is_array($field)) {
-            continue;
-        }
         if (($field['render'] ?? true) === false) {
             continue;
         }
@@ -463,10 +460,10 @@ function appStylePathsForGroups(array $groupNames): array
         $registry = app(\MintyPHP\App\Module\ModuleRegistry::class);
         if ($registry instanceof \MintyPHP\App\Module\ModuleRegistry) {
             foreach ($registry->getAssetGroups() as $groupName => $paths) {
-                if (!is_string($groupName) || $groupName === '') {
+                if ($groupName === '') {
                     continue;
                 }
-                if (!is_array($paths) || isset($groups[$groupName])) {
+                if (isset($groups[$groupName])) {
                     continue;
                 }
                 $groups[$groupName] = $paths;