Add Mundwerk to Voice-to-Text

[bkindler]

Mundwerk is a local dictation macOS app focused on German-English code-switching for bilingual users.

Why it fits Voice-to-Text:

• Push-to-talk (Fn key or custom hotkey), system-wide text injection
• Whisper.cpp + Metal GPU acceleration on Apple Silicon
• Fully offline: no cloud component in the audio pipeline
• Learnable vocabulary: corrections feed back into a personal vocabulary store
• One-time purchase, no subscription

Distinct from other entries:

• Code-switching German↔English mid-sentence (target: bilingual IT professionals in DACH region) — not addressed by other Whisper-based apps in this section
• Reproducible Apple Silicon benchmarks: https://github.com/mundwerk-app/whisper-metal-benchmark
• Apple-notarized, hardened-runtime, code-signed; macOS 14+, Apple Silicon only

Project links:

• App: https://mundwerkapp.de
• Documentation: https://github.com/mundwerk-app/docs

Inserted alphabetically between FnKey and OpenDictation. No Freeware/OSS icons (commercial closed-source).