feat(fabric): decommission Swapper from critical path, NCS = source of truth

- Node Worker: replace swapper_vision with ollama_vision (direct Ollama API)
- Node Worker: add NATS subjects for stt/tts/image (stubs ready)
- Node Worker: remove SWAPPER_URL dependency from config
- Router: vision calls go directly to Ollama /api/generate with images
- Router: local LLM calls go directly to Ollama /api/generate
- Router: add OLLAMA_URL and PREFER_NODE_WORKER=true feature flag
- Router: /v1/models now uses NCS global capabilities pool
- NCS: SWAPPER_URL="" -> skip Swapper probing (status=disabled)
- Swapper configs: remove all hardcoded model lists, keep only runtime
  URLs, timeouts, limits
- docker-compose.node1.yml: add OLLAMA_URL, PREFER_NODE_WORKER for router;
  SWAPPER_URL= for NCS; remove swapper-service from node-worker depends_on
- docker-compose.node2-sofiia.yml: same changes for NODA2

Swapper service still runs but is NOT in the critical inference path.
Source of truth for models is now NCS -> Ollama /api/tags.

Made-with: Cursor

docker-compose.node2-sofiia.yml

@@ -25,9 +25,11 @@ services:
       - XAI_API_KEY=${XAI_API_KEY}
       - GROK_API_KEY=${XAI_API_KEY}
       - DEEPSEEK_API_KEY=${DEEPSEEK_API_KEY:-}
-      # ── Node Capabilities (multi-node model selection) ────────────────────
+      # ── Fabric Layer (NCS + Node Worker, no Swapper dependency) ──────────
       - NODE_CAPABILITIES_URL=http://node-capabilities:8099/capabilities
       - ENABLE_GLOBAL_CAPS_NATS=true
+      - OLLAMA_URL=http://host.docker.internal:11434
+      - PREFER_NODE_WORKER=true
       # ── Persistence backends ──────────────────────────────────────────────
       - ALERT_BACKEND=postgres
       - ALERT_DATABASE_URL=${ALERT_DATABASE_URL:-${DATABASE_URL}}
@@ -121,7 +123,7 @@ services:
     environment:
       - NODE_ID=NODA2
       - OLLAMA_BASE_URL=http://host.docker.internal:11434
-      - SWAPPER_URL=http://swapper-service:8890
+      - SWAPPER_URL=
       - LLAMA_SERVER_URL=http://host.docker.internal:11435
       - CACHE_TTL_SEC=15
       - ENABLE_NATS_CAPS=true
@@ -147,14 +149,12 @@ services:
       - NODE_ID=noda2
       - NATS_URL=nats://dagi-nats:4222
       - OLLAMA_BASE_URL=http://host.docker.internal:11434
-      - SWAPPER_URL=http://swapper-service:8890
       - NODE_DEFAULT_LLM=qwen3:14b
       - NODE_DEFAULT_VISION=llava:13b
       - NODE_WORKER_MAX_CONCURRENCY=2
       - NCS_REPORT_URL=http://node-capabilities:8099
     depends_on:
       - dagi-nats
-      - swapper-service
     networks:
       - dagi-network
     restart: unless-stopped