v3.3.0: File Manager, SSH/Remote access, Approval gate
- File Manager: browse device files, open/preview, install APKs
- SSH/Remote: [SSH_EXEC], [SSH_UPLOAD], [SSH_DOWNLOAD], [REMOTE_EXEC], [CURL_EXEC]
- Approval gate: all sensitive actions require user approval
- New FileManagerPlugin native plugin
- Updated agentic system prompt with external access docs
- Cleaned up stale .idsig artifacts from releases/