Bugfixes: Windows Terminal Resumption & Workspace Path Handling

[thomas-intramotev]

Summary

Fixes an eclectic handful of bugs from #6, mainly apparent on Windows, but which could have potentially impacted other platforms.

Changes

• ConversationParser — Rewrote extractWorkspacePath with a filesystem-walk algorithm. The new approach can reconstruct paths containing dots (user.name), underscores (my_project), or Windows drive-letter colons (C:).
• ClaudeCodeWatcher — encodeWorkspacePath now applies case folding on case-insensitive platforms (Windows/macOS).
• StandaloneMessageHandler — Fixed Windows terminal launch: tries Windows Terminal (wt) before cmd /c start; strips NODE_OPTIONS from the child environment to prevent a bug when running Standalone mode from VS Code (added a VS code launch config for this); uses os.homedir() instead of process.env.HOME as the cwd fallback.
• TaskCard.svelte — Added stopPropagation to the "open conversation" button click so the window-level click handler doesn't immediately dismiss the terminal/VS Code dropdown.

Checklist

• npm test passes
• npm run lint passes
• Webview builds (cd webview && npm run build)
• Tested manually in the Extension Development Host
• Updated CHANGELOG.md (if user-facing change)
• User-facing strings use vscode.l10n.t() for i18n

[salam]

Thanks @thomas-intramotev for putting the thoughts into this to make Claudine working for Windows users.