feat(build): add automated Android resource detection and generation

- Add generate-android-icons.sh script to create all required launcher icon sizes
- Add check-android-resources.sh script to detect and fix missing Android resources
- Integrate resource check into build-android.sh to prevent build failures
- Fix splash screen resource naming (splash-dark.png -> splash_dark.png)
- Add SplashScreen plugin configuration to capacitor.config.json
- Automatically generate missing mipmap icons from assets/icon.png
- Fix XML resource references to use correct drawable paths

Author: Matthew Raymer

SECURITY AUDIT CHECKLIST:
- [x] No sensitive data exposed in generated resources
- [x] Resource generation uses safe file operations
- [x] Scripts include proper error handling and validation
- [x] All generated files use appropriate permissions
- [x] No hardcoded secrets or credentials in scripts

capacitor.config.json

@@ -16,6 +16,19 @@
 				]
 			}
 		},
+		"SplashScreen": {
+			"launchShowDuration": 3000,
+			"launchAutoHide": true,
+			"backgroundColor": "#ffffff",
+			"androidSplashResourceName": "splash",
+			"androidScaleType": "CENTER_CROP",
+			"showSpinner": false,
+			"androidSpinnerStyle": "large",
+			"iosSpinnerStyle": "small",
+			"spinnerColor": "#999999",
+			"splashFullScreen": true,
+			"splashImmersive": true
+		},
 		"CapacitorSQLite": {
 			"iosDatabaseLocation": "Library/CapacitorDatabase",
 			"iosIsEncryption": false,