fix(storage): migrate filesystem operations to smartfs and tighten TypeScript initialization checks

ts/classes.appdata.ts

@@ -403,7 +403,7 @@ export class AppData<T = any> {
   // instance
   public readyDeferred = plugins.smartpromise.defer<void>();
   public options: IAppDataOptions<T>;
-  private kvStore: KeyValueStore<T>;
+  private kvStore!: KeyValueStore<T>;
 
   constructor(optionsArg: IAppDataOptions<T> = {}) {
     this.options = optionsArg;
@@ -430,8 +430,8 @@ export class AppData<T = any> {
       const appDataDir = '/app/data';
       const dataDir = '/data';
       const nogitAppData = '.nogit/appdata';
-      const appDataExists = plugins.smartfile.fs.isDirectory(appDataDir);
-      const dataExists = plugins.smartfile.fs.isDirectory(dataDir);
+      const appDataExists = plugins.nodeFs.existsSync(appDataDir) && plugins.nodeFs.statSync(appDataDir).isDirectory();
+      const dataExists = plugins.nodeFs.existsSync(dataDir) && plugins.nodeFs.statSync(dataDir).isDirectory();
       if (appDataExists) {
         this.options.dirPath = appDataDir;
         console.log(`  📁 Auto-selected container directory: ${appDataDir}`);
@@ -439,7 +439,7 @@ export class AppData<T = any> {
         this.options.dirPath = dataDir;
         console.log(`  📁 Auto-selected data directory: ${dataDir}`);
       } else {
-        await plugins.smartfile.fs.ensureDir(nogitAppData);
+        await plugins.smartFs.directory(nogitAppData).create();
         this.options.dirPath = nogitAppData;
         console.log(`  📁 Auto-selected local directory: ${nogitAppData}`);
       }
@@ -494,17 +494,18 @@ export class AppData<T = any> {
 
     // Apply overwrite object after env mapping
     if (this.options.overwriteObject) {
-      const overwriteKeys = Object.keys(this.options.overwriteObject);
+      const overwriteObject = this.options.overwriteObject as Record<string, unknown>;
+      const overwriteKeys = Object.keys(overwriteObject);
       console.log(`🔄 Applying overwriteObject with ${overwriteKeys.length} key(s)...`);
 
       for (const key of overwriteKeys) {
-        const value = this.options.overwriteObject[key];
+        const value = overwriteObject[key];
         const valueType = Array.isArray(value) ? 'array' : typeof value;
         console.log(`  🔧 Overwriting key "${key}" with ${valueType} value`);
 
         await this.kvStore.writeKey(
           key as keyof T,
-          value,
+          value as T[keyof T],
         );
       }