Add missing appendBinary() to VirtualAdapter

[numericOverflow]

Description

Obsidian's DataAdapter interface now requires appendBinary(). VirtualAdapter did not implement it, causing a TypeScript build error:

Property 'appendBinary' is missing in type 'VirtualAdapter' but required in type 'DataAdapter'.

Changes made

Added appendBinary(normalizedPath, data, options) to VirtualAdapter, following the same pattern as the existing append() method: read-only guard, ignore check, visible-file check, allowlist assertion, dry-run support, fs.promises.appendFile with Buffer.from(data), and onModify callback. Falls through to the original adapter for non-mounted paths.

Type of Change

• Bug fix (non-breaking change that fixes an issue)

Testing Performed

• Built successfully with npm run build
• No TypeScript errors
• No ESLint warnings
• Tested in Obsidian
• Tested on multiple platforms (if applicable): N/A (windows only)

Test Environment

OS: Win11
Obsidian Version:
Plugin Version: 2.15.3
Node.js Versionif development): 24.14.1

Checklist

• My code follows the project's code style
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have tested my changes thoroughly

[tescolopio]

Hi everyone! We are currently reviewing the backlog of issues and PRs. It has been a little while since our last update to Folder Bridge, so we are taking some time to catch up on the newest Obsidian updates, review your feedback, and get things building smoothly again. We'll be working through these and providing updates soon. Thanks for your patience and for contributing to the plugin!