feat: Add Hard Reset button to clear Electron caches

[roomote]

This PR implements a "Hard Reset" feature that addresses issue #8419 - corrupted Electron files persisting in system-level caches.

Problem

Users experiencing corrupted Electron runtime files cannot fully resolve the issue by simply deleting the VS Code Application Support folder. The corruption persists in system-level Electron caches.

Solution

Adds a new "Hard Reset" button in the About settings section that:

• Clears all VS Code cache directories
• Clears Electron cache directories
• Removes IndexedDB, Local Storage, and Session Storage data
• Handles platform-specific cache locations for macOS, Windows, and Linux
• Performs a regular state reset alongside cache clearing
• Provides user feedback with success/failure counts
• Offers to restart VS Code after completion

Implementation

• Added hardResetElectronCache() method to ClineProvider class
• Added message handling for the new command
• Updated WebviewMessage type
• Added "Hard Reset" button to the UI
• Added comprehensive JSDoc documentation
• Included all necessary translations

Testing

• TypeScript compilation passes
• All existing tests pass
• Linting passes
• Code review confidence: 85% (High)

Fixes #8419

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Important

Adds a 'Hard Reset' button to clear Electron caches in VS Code, with platform-specific handling and UI updates.

• Behavior:
  • Adds "Hard Reset" button in About.tsx to clear Electron and VS Code caches.
  • Clears IndexedDB, Local Storage, and Session Storage.
  • Handles platform-specific cache paths for macOS, Windows, and Linux.
  • Offers to restart VS Code after completion.
• Implementation:
  • Adds hardResetElectronCache() method to ClineProvider class.
  • Updates webviewMessageHandler to handle hardResetElectronCache command.
  • Updates WebviewMessage type to include hardResetElectronCache.
• Translations:
  • Adds related strings to common.json and settings.json.

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[daniel-lxs]

Hi there! Thank you for the PR and the thoughtful proposal. However, completely resetting the Electron cache falls outside the intended scope of this extension, so this feature isn't planned. We appreciate your contribution and understanding.