fix: resolve RedisCache array offset error and improve discovery diagnostics

- Fix RedisCache driver to handle MGET failures gracefully with fallback
- Add comprehensive discovery context comparison debug tools
- Identify root cause: WEB context discovery missing 166 items vs CLI
- WEB context missing RequestFactory class entirely (52 vs 69 commands)
- Improved exception handling with detailed binding diagnostics

src/Framework/Database/Migration/MigrationDependencyGraph.php

@@ -152,6 +152,8 @@ final class MigrationDependencyGraph
 
     /**
      * Utility function for circular dependency detection using DFS
+     * @param array<string, bool> $visited
+     * @param array<string, bool> $recursionStack
      */
     private function detectCircularDependenciesUtil(string $version, array &$visited, array &$recursionStack): bool
     {
@@ -178,6 +180,8 @@ final class MigrationDependencyGraph
 
     /**
      * Perform a topological sort using depth-first search
+     * @param array<string, bool> $visited
+     * @param array<int, string> $order
      */
     private function topologicalSort(string $version, array &$visited, array &$order): void
     {

src/Framework/Database/Migration/MigrationStatus.php

@@ -48,6 +48,7 @@ final readonly class MigrationStatus
 
     /**
      * Convert to array for backward compatibility
+     * @return array<string, string|bool>
      */
     public function toArray(): array
     {

src/Framework/Database/Migration/MigrationStatusCollection.php

@@ -85,6 +85,7 @@ final readonly class MigrationStatusCollection implements Countable, IteratorAgg
 
     /**
      * Convert to array for backward compatibility
+     * @return array<int, array<string, string|bool>>
      */
     public function toArray(): array
     {

src/Framework/Database/Migration/MigrationVersion.php

@@ -32,6 +32,11 @@ final readonly class MigrationVersion
         return $this->timestamp;
     }
 
+    public function toString(): string
+    {
+        return $this->timestamp;
+    }
+
     public function compare(MigrationVersion $other): int
     {
         return $this->timestamp <=> $other->timestamp;