docker: bake espeak-ng data for Piper TTS

espeak-rs-sys installs espeak-ng-data into the build tree and compiles that
path in as the default, so the runtime image failed with 'phontab: No such
file or directory'. Copy the data from the builder to /usr/share and point
PIPER_ESPEAKNG_DATA_DIRECTORY there; compose overrides the host path from
.env.

Also trim trailing slashes from Copyparty base URLs, document that env_file
changes need --force-recreate, and clean inline comments in .env.example.

1 files changed, 13 insertions, 2 deletions

diff --git a/.env.example b/.env.example
index 01e24b3..e67827d 100644
--- a/.env.example
+++ b/.env.example
@@ -3,17 +3,28 @@ TOKEN=
 
 # Optional - Bot Configuration
 STATUS_CHANNEL_ID=
+SENATOR_DB_PATH=data/senator.db
 
 # Optional - Copyparty File Server (for music /search commands)
+# No trailing slash; a trailing slash produces double slashes in built URLs.
 COPYPARTY_URL=http://localhost:8080
 COPYPARTY_URL_UPLOAD=http://localhost:8080/uploads
 COPYPARTY_PASSWORD=
 
 # Optional - AI functionality
-ASSISTANT_KEYWORD=jarvis  # Keyword to trigger AI assistant
+ASSISTANT_KEYWORD=jarvis
+# Full chat-completions URL. For a local server running on the Docker host,
+# use the host's LAN IP (localhost inside the container is the container).
+LLM_API_URL=https://openrouter.ai/api/v1/chat/completions
+LLM_API_KEY=
+LLM_MODEL=
+# Legacy OpenRouter fallbacks (LLM_* takes priority)
 OPENROUTER_API_KEY=
 OPENROUTER_MODEL=
 
 # Optional - Local TTS
-TTS_MODEL_PATH=/path/to/models          # or a full path to pl_PL-bass-high.onnx
+# Directory containing <voice>.onnx, or a full path to the .onnx file.
+TTS_MODEL_PATH=/path/to/piper
 TTS_VOICE=pl_PL-bass-high
+# Parent directory of espeak-ng-data. Docker overrides this to /usr/share.
+PIPER_ESPEAKNG_DATA_DIRECTORY=/path/to/piper