Adding Server Mode and Platform Constraint Settings

[kylewalke]

Add Platform-Aware Capability Filtering with Mode and Platform Toggles

This PR introduces runtime platform detection and platform-aware capability filtering to ensure LSP features are only enabled in supported environments.

Changes

Platform-Aware Capability System

• Implemented runtime platform detection for web and desktop environments
• Added platform-aware capability filtering using predefined disabled sets (WEB_DISABLED_CAPABILITIES, DESKTOP_DISABLED_CAPABILITIES)
• Capabilities like profilingProvider are now automatically filtered out in web environments
• Replaced wrapper-based filtering (PlatformConstrainedCapability) with declarative disabled capability sets for LSP protocol compliance

Configuration Manager Enhancements

• Fixed Web Worker environment detection to properly identify web platform
• Added automatic platform configuration on capabilities manager initialization
• Deep copy capability configurations to prevent mutation of exported constants

VS Code Extension Configuration

• Added apex.environment.serverPlatformOverride setting to manually override platform detection
• Added apex.environment.serverModeOverride setting to override server mode (production/development)
• Updated documentation with configuration examples and use cases

Architecture Improvements

• Centralized disabled capabilities in WEB_DISABLED_CAPABILITIES and DESKTOP_DISABLED_CAPABILITIES sets
• Removed custom capability wrapper types in favor of standard LSP capability objects
• Platform filtering now occurs during capability construction, ensuring protocol compliance

Impact

• Web version correctly disables Node.js-specific features like profiling
• Developers can override platform and mode for local development and debugging
• Cleaner capability definitions that align with LSP protocol standards
• Prevents accidental mutation of global capability configuration objects

What issues does this PR fix or reference?

@W-20296680@

[salesforce-cla]

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