feat: add Honcho memory provider with PostgreSQL + pgvector stack

Add Honcho (https://github.com/plastic-labs/honcho) as a self-hosted
memory infrastructure for stateful AI agents.

Changes:
- ai/honcho/Dockerfile: multi-stage build from Honcho GitHub source
- ai/honcho/init.sql: CREATE EXTENSION vector for pgvector
- ai/compose.yml: add honcho-db (pgvector/pgvector:pg17-trixie) and
  honcho services with ai_backend/ai_net networking and Traefik labels
- build/honcho/config.toml: pre-configured for Ollama embeddings
  (nomic-embed-text via http://ollama:11434/v1), deriver/summary/dream
  disabled by default
- env/.env.example.honcho: sample env vars (HONCHO_DB_PASSWORD,
  LLM_OPENAI_API_KEY)

Usage:
  cp env/.env.example.honcho .env  # edit secrets
  mkdir -p /mnt/HoardingCow_docker_data/Honcho
  cp build/honcho/config.toml /mnt/HoardingCow_docker_data/Honcho/config.toml
  docker compose -f ai/compose.yml up honcho

ai/compose.yml

@@ -185,6 +185,94 @@ services:
 
       - "traefik.http.services.paperclip.loadbalancer.server.port=3100"
 
+  # ---------------------------------------------------------------------------
+  # Honcho — Memory infrastructure for stateful AI agents
+  # Self-hosted memory server with pgvector for embedding storage.
+  # Defaults to Ollama for embeddings; configure LLM provider for full deriver
+  # and summarization support.
+  #
+  # API port: 8000
+  # Web:       https://honcho.lazyworkhorse.net
+  # Docs:      https://github.com/plastic-labs/honcho
+  # ---------------------------------------------------------------------------
+
+  honcho-db:
+    image: pgvector/pgvector:pg17-trixie
+    container_name: honcho-db
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: honcho
+      POSTGRES_USER: honcho
+      POSTGRES_PASSWORD: ${HONCHO_DB_PASSWORD:?HONCHO_DB_PASSWORD must be set}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U honcho -d honcho"]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+    volumes:
+      - /mnt/HoardingCow_docker_data/Honcho/pgdata:/var/lib/postgresql/data
+      - ./honcho/init.sql:/docker-entrypoint-initdb.d/init.sql
+    networks:
+      - ai_backend
+
+  honcho:
+    build:
+      context: ./honcho
+      dockerfile: Dockerfile
+    container_name: honcho
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:8000:8000"
+    depends_on:
+      honcho-db:
+        condition: service_healthy
+    environment:
+      DB_CONNECTION_URI: postgresql+psycopg://honcho:${HONCHO_DB_PASSWORD:?HONCHO_DB_PASSWORD must be set}@honcho-db:5432/honcho
+      LOG_LEVEL: INFO
+      LLM_OPENAI_API_KEY: ${LLM_OPENAI_API_KEY:-ollama}
+    volumes:
+      - /mnt/HoardingCow_docker_data/Honcho/config.toml:/app/config.toml
+    networks:
+      - ai_backend
+      - ai_net
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=ai_net"
+
+      - "traefik.http.routers.honcho-http.rule=Host(`honcho.lazyworkhorse.net`)"
+      - "traefik.http.routers.honcho-http.entrypoints=web"
+      - "traefik.http.routers.honcho-http.middlewares=redirect-to-https"
+
+      - "traefik.http.routers.honcho-https.rule=Host(`honcho.lazyworkhorse.net`)"
+      - "traefik.http.routers.honcho-https.entrypoints=websecure"
+      - "traefik.http.routers.honcho-https.tls=true"
+      - "traefik.http.routers.honcho-https.tls.certresolver=njalla"
+
+      - "traefik.http.services.honcho.loadbalancer.server.port=8000"
+
+  holographic-memory:
+    build:
+      context: ./holographic-memory
+    image: holographic-memory:latest
+    container_name: holographic-memory
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:8100:8100"
+    environment:
+      - HOLOGRAPHIC_DB_PATH=/data/holographic/memory_store.db
+      - HOLOGRAPHIC_PORT=8100
+      - HOLOGRAPHIC_DEFAULT_TRUST=0.5
+    volumes:
+      - /mnt/HoardingCow_docker_data/HolographicMemory:/data/holographic
+    networks:
+      - ai_backend
+    healthcheck:
+      test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8100/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
+
 networks:
   ai_net:
     external: true