fix: Rename Plugin_config methods to avoid conflict with CodeIgniter Model::set()

The PluginConfig class extends CodeIgniter\Model which has its own set() method
for query building. Renaming get()/set() to getValue()/setValue() avoids this conflict.

Also fixed:
- batchSave() to use setValue() instead of set()
- Updated all callers in PluginManager and BasePlugin to use renamed methods

app/Libraries/Plugins/BasePlugin.php

@@ -25,13 +25,13 @@ abstract class BasePlugin implements PluginInterface
 
     public function isEnabled(): bool
     {
-        $enabled = $this->configModel->get("{$this->getPluginId()}_enabled");
+        $enabled = $this->configModel->getValue("{$this->getPluginId()}_enabled");
         return $enabled === '1' || $enabled === 'true';
     }
 
     protected function getSetting(string $key, mixed $default = null): mixed
     {
-        $value = $this->configModel->get("{$this->getPluginId()}_{$key}");
+        $value = $this->configModel->getValue("{$this->getPluginId()}_{$key}");
         return $value ?? $default;
     }
 
@@ -41,7 +41,7 @@ abstract class BasePlugin implements PluginInterface
             ? json_encode($value) 
             : (string)$value;
             
-        return $this->configModel->set("{$this->getPluginId()}_{$key}", $stringValue);
+        return $this->configModel->setValue("{$this->getPluginId()}_{$key}", $stringValue);
     }
 
     public function getSettings(): array

app/Libraries/Plugins/PluginManager.php

@@ -95,7 +95,7 @@ class PluginManager
 
     public function isPluginEnabled(string $pluginId): bool
     {
-        $enabled = $this->configModel->get($this->getEnabledKey($pluginId));
+        $enabled = $this->configModel->getValue($this->getEnabledKey($pluginId));
         return $enabled === '1' || $enabled === 'true';
     }
 
@@ -112,10 +112,10 @@ class PluginManager
                 log_message('error', "Failed to install plugin: {$pluginId}");
                 return false;
             }
-            $this->configModel->set($this->getInstalledKey($pluginId), '1');
+            $this->configModel->setValue($this->getInstalledKey($pluginId), '1');
         }
 
-        $this->configModel->set($this->getEnabledKey($pluginId), '1');
+        $this->configModel->setValue($this->getEnabledKey($pluginId), '1');
         log_message('info', "Plugin enabled: {$pluginId}");
         
         return true;
@@ -128,7 +128,7 @@ class PluginManager
             return false;
         }
         
-        $this->configModel->set($this->getEnabledKey($pluginId), '0');
+        $this->configModel->setValue($this->getEnabledKey($pluginId), '0');
         log_message('info', "Plugin disabled: {$pluginId}");
         
         return true;
@@ -154,12 +154,12 @@ class PluginManager
 
     public function getSetting(string $pluginId, string $key, mixed $default = null): mixed
     {
-        return $this->configModel->get("{$pluginId}_{$key}") ?? $default;
+        return $this->configModel->getValue("{$pluginId}_{$key}") ?? $default;
     }
 
     public function setSetting(string $pluginId, string $key, mixed $value): bool
     {
-        return $this->configModel->set("{$pluginId}_{$key}", $value);
+        return $this->configModel->setValue("{$pluginId}_{$key}", $value);
     }
 
     private function getEnabledKey(string $pluginId): string

app/Models/PluginConfig.php

@@ -23,7 +23,7 @@ class PluginConfig extends Model
         return ($builder->get()->getNumRows() === 1);
     }
 
-    public function get(string $key): ?string
+    public function getValue(string $key): ?string
     {
         $builder = $this->db->table('plugin_config');
         $query = $builder->getWhere(['key' => $key], 1);
@@ -35,7 +35,7 @@ class PluginConfig extends Model
         return null;
     }
 
-    public function set(string $key, string $value): bool
+    public function setValue(string $key, string $value): bool
     {
         $builder = $this->db->table('plugin_config');
         
@@ -84,7 +84,7 @@ class PluginConfig extends Model
         $this->db->transStart();
 
         foreach ($data as $key => $value) {
-            $success &= $this->set($key, $value);
+            $success &= $this->setValue($key, $value);
         }
 
         $this->db->transComplete();