[snomiao]

Moves voice out of CapsLockX into otoji. CLX+V now only triggers the otoji app.

Depends on snomiao/otoji#163, which adds the control socket CLX+V talks to. Until an otoji build with it is installed, CLX+V shows "otoji didn't respond, please update".

CLX+V

Gesture	Command sent to otoji
Tap	toggle
Hold (300 ms or more, the old threshold)	ptt-start, then ptt-end on release

The first 300 ms of a hold are not push-to-talk, because the gesture can't be told apart from a tap until then.

Situation	What happens
macOS, tray running	Command goes to <otoji data dir>/tray-ctl.sock, one ASCII datagram per command
macOS, installed but not running	open -g -b com.snomiao.otoji, then retry for up to 10 s. A tap sends on instead of toggle, since otoji may already start listening when launched
macOS, not installed	Overlay with the download link; pressing CLX+V again while it shows opens the page
Windows / Linux	"Not available yet". Linux has no overlay, so there it only goes to the log

What changed

• Removed: the voice stack (STT engines, audio capture, overlay, TTS, wake word, dev and bench binaries, clx-media, clx-ocr) and its dependencies, about 21k lines. cargo tree no longer contains openssl, curl, onnx, whisper, sherpa or cpal, and bin/clx no longer sets DYLD_LIBRARY_PATH. The packaging scripts and workflows drop the dylib bundling.
• Agent: agent::ENABLED = false unbinds CLX+M, because agent mode was fed by CLX's own transcripts. The code still compiles and its tests run, and clx agent still works.

Behaviour changes to check

• Brainstorm no longer reads replies aloud, and the agent's speak tool is gone.
• clx no longer starts otoji-tray at launch.
• clx no longer runs pkill -9 -f 'otoji listen' at startup. Keeping it would have killed otoji's own listener on every clx restart.
• Old voice settings and the ElevenLabs key stay in config.json when saving (macOS, FullConfig::extra), because otoji imports them on first run. The Windows config simply stops reading them.
• PTT context from on-screen OCR (clx-ocr) is gone; otoji has no equivalent.

Testing

• cargo test -p capslockx-core: 333 passed, 0 failed, 10 ignored.
• cargo test -p capslockx-macos --bin capslockx: 4 passed, including delivery to a fake tray socket and a stale socket.
• cargo build -p capslockx-macos --release: builds with no Homebrew OpenSSL; the binary links only system libraries.
• cargo check -p capslockx-core -p capslockx-linux -p capslockx-browser on macOS passes, but this doesn't compile the Linux-only code.

Not tested:

• CLX+V against a real otoji tray. The running clx and otoji were left alone, so this still needs a try on a real install.
• The Windows adapter: it can't be checked here (no mingw), so this PR's CI is the check.
• build.sh and scripts/package-mac.sh: edited and syntax-checked with bash -n only, not run.

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