Route all chat requests to local Ollama; support @copilot, @lucidia, @blackboxprogramming, @ollama mentions

Co-authored-by: blackboxprogramming <118287761+blackboxprogramming@users.noreply.github.com>

docker-compose.yml

@@ -3,6 +3,15 @@
 version: "3.9"
 
 services:
+  ollama:
+    image: ollama/ollama:latest
+    container_name: blackroad-ollama
+    ports:
+      - "11434:11434"
+    volumes:
+      - ollama_data:/root/.ollama
+    restart: unless-stopped
+
   lucidia-api:
     build: .
     container_name: lucidia-api
@@ -11,8 +20,11 @@ services:
       - .:/app
     ports:
       - "8000:8000"
+    environment:
+      - OLLAMA_BASE_URL=http://ollama:11434
     depends_on:
       - nginx
+      - ollama
 
   nginx:
     image: nginx:latest
@@ -22,3 +34,6 @@ services:
     ports:
       - "80:80"
 
+volumes:
+  ollama_data:
+