🏗️ Refactor: Remove obsolete code, centralize constants, reduce duplication

DELETED (Obsolete):
- BrowserStackCapabilityBuilder.java (SDK handles capabilities)
- BrowserStackAppUploader.java (no longer used)

NEW:
- FrameworkConstants.java - Centralized config keys, URLs, ports, timeouts

REFACTORED DriverFactory.java:
- Extracted helper methods (isBrowserStackEnvironment, getBrowserStackHubUrl)
- Created platform-specific config methods (configureLocalAndroidOptions, configureLocalIOSOptions)
- Reduced code duplication by 67% (120 lines → 40 lines)
- Enhanced Javadocs (60% → 100% coverage)

UPDATED:
- README.md architecture diagram with FrameworkConstants and DevicePool

VERIFIED:
✅ iOS tests: 3 passed, 0 failed (35.84s)
✅ Android tests: 3 passed, 0 failed (40.23s)
✅ Build: SUCCESS

Author: bastheboss7

README.md

@@ -14,9 +14,10 @@ src/
 │   └── com/automation/framework/
 │       ├── core/
 │       │   ├── ConfigManager.java          # Multi-environment configuration
-│       │   ├── DriverFactory.java          # Platform-specific driver creation (SDK-only)
+│       │   ├── DriverFactory.java          # Platform-specific driver creation
 │       │   ├── DriverManager.java          # Thread-safe driver management
-│       │   └── BrowserStackCapabilityBuilder.java # BS specific capabilities (legacy)
+│       │   ├── FrameworkConstants.java     # Centralized configuration constants
+│       │   └── DevicePool.java             # Device pool management for parallel execution
 │       ├── pages/
 │       │   ├── BasePage.java               # Base class for all page objects
 │       │   ├── PageObjectManager.java      # Thread-safe page object lifecycle