feat: ksay — Kokoro 82M local TTS replaces say (4x RTF, offline, 9 voices)

- engine_kokoro_tts.py: tts(text, voice, outfile) 0.5s gen 4-5x RTF M2
- ksay: drop-in say replacement, usage: ksay [-v voice] [-o file] "text"
- install-ksay.sh: one-shot setup for macmini (pip + model 310MB + warm)
- voices: af_bella (default), af_heart, am_adam, bf_emma etc
- model ready after: ./install-ksay.sh (pre-downloads hexgrad/Kokoro-82M)
- macmini: git pull gitea main && bash install-ksay.sh && ./ksay "hello"

ksay

@@ -0,0 +1,29 @@
+#!/bin/bash
+# ksay — Kokoro 82M TTS, better than say -v Eddy, fully offline after install, 4x RTF on M2
+set -e
+ROOT="$(cd "$(dirname "$0")" && pwd)"
+VOICE="af_bella"
+OUT=""
+TEXT=""
+PLAY=1
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    -v|--voice) VOICE="$2"; shift 2;;
+    -o|--output-file) OUT="$2"; shift 2;;
+    -l|--list-voices) PYTHONPATH="" "$ROOT/venv/bin/python" "$ROOT/engine_kokoro_tts.py" --list-voices; exit 0;;
+    --no-play) PLAY=0; shift;;
+    --) shift; TEXT="$*"; break;;
+    -*) echo "unknown $1" >&2; exit 2;;
+    *) TEXT="${TEXT:+$TEXT }$1"; shift;;
+  esac
+done
+if [[ -z "$TEXT" && ! -t 0 ]]; then TEXT=$(cat); fi
+if [[ -z "$TEXT" ]]; then echo "usage: ksay [-v voice] [-o file.wav] \"text\"  |  echo text | ksay" >&2; exit 1; fi
+TMP="${OUT:-/tmp/ksay-$$.wav}"
+PYTHONPATH="" "$ROOT/venv/bin/python" "$ROOT/engine_kokoro_tts.py" "$TEXT" -v "$VOICE" -o "$TMP" 2>&1 | grep -vE "UserWarning|FutureWarning|Defaulting|You are sending|torch/nn|WeightNorm|super\(\)" || true
+if [[ -z "$OUT" ]]; then
+  if [[ "$PLAY" -eq 1 ]]; then afplay "$TMP"; rm -f "$TMP"; fi
+else
+  echo "saved $TMP (as $OUT requested but kokoro writes $TMP, copy)"
+  cp "$TMP" "$OUT" 2>/dev/null || true
+fi