Adds end-to-end browser voice capture for the Memoro module, mirroring the
existing dreams pattern: MediaRecorder → SvelteKit server proxy → mana-stt
on the Windows GPU box via Cloudflare tunnel.
Recording UI lives in /memoro page header (mic button + live timer + cancel +
sticky-permission retry). Server proxy at /api/v1/memoro/transcribe forwards
the blob with the server-held X-API-Key. memosStore.createFromVoice creates a
placeholder memo with processingStatus='processing' and fires transcribeBlob
in the background, which writes the transcript and flips status on completion
(or 'failed' with error in metadata).
Also corrects the mana-stt hostname across the repo: stt-api.mana.how (which
never existed in DNS) → gpu-stt.mana.how (the actual Cloudflare tunnel route
to the Windows GPU box). Adds an ENVIRONMENT_VARIABLES.md section explaining
how to obtain MANA_STT_API_KEY and where the tunnel terminates. Adds tunnel
health probes to the mac-mini health-check script so we catch tunnel-side
breakage in addition to LAN-side.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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