add root readme

cht/config.py

@@ -35,3 +35,16 @@ TRANSCRIBE_LINES_PER_GROUP = 3 # whisper segments grouped per transcript ID (1-5
 # Agent settings
 AGENT_PERMISSION_MODE = "bypassPermissions"  # default|acceptEdits|plan|bypassPermissions|dontAsk
 AGENT_MAX_TURNS = 5
+
+# Offline summarization (post-session diarization + export)
+# whisperx lives in its own venv to avoid dep clashes with cht's faster_whisper.
+# Defaults mirror transcribe_oneoff.sh: large-v3 + int8 fits in ~3-4 GB VRAM and
+# is less hallucination-prone than medium on long meetings.
+WHISPERX_BIN = os.environ.get("CHT_WHISPERX_BIN", "/home/mariano/wdir/venv/def/bin/whisperx")
+WHISPERX_MODEL = os.environ.get("CHT_WHISPERX_MODEL", "large-v3")
+WHISPERX_DEVICE = os.environ.get("CHT_WHISPERX_DEVICE", "cuda")
+WHISPERX_COMPUTE_TYPE = os.environ.get("CHT_WHISPERX_COMPUTE_TYPE", "int8")
+WHISPERX_BATCH_SIZE = int(os.environ.get("CHT_WHISPERX_BATCH_SIZE", "4"))
+HF_TOKEN = os.environ.get("HF_TOKEN")  # required for pyannote diarization
+DEFAULT_PARTICIPANTS = 2
+WHISPERX_LD_LIBRARY_PATH = os.environ.get("CHT_WHISPERX_LD_LIBRARY_PATH")  # cuDNN override