Update README with .env file creation and SearXNG fix

Added instructions for creating .env files and fixed SearXNG setup.

README.md

@@ -20,7 +20,7 @@ Portal at `localai.mydomain.com` switches between stacks to share VRAM.
 ## Directory structure
 
 ```
-~/docker
+homelab-ai/
 ├── ai-image-gen/
 │   ├── docker-compose.yml     ← InvokeAI
 │   └── archive.sh             ← saves Docker images for offline restore
@@ -83,7 +83,12 @@ mkdir -p ~/docker/ai-image-gen/data/invokeai
 mkdir -p ~/docker/ai-llm/data/ollama
 mkdir -p ~/docker/ai-llm/data/open-webui
 mkdir -p ~/docker/ai-llm/data/searxng
-mkdir -p ~/docker/ai-portal
+mkdir -p ~/docker/ai-portal/templates
+```
+
+### 7. Create .env files
+```bash
+echo "TZ=America/New_York" | tee ~/docker/ai-llm/.env ~/docker/ai-image-gen/.env ~/docker/ai-portal/.env
 ```
 
 ### 7. Copy files from repo
@@ -120,7 +125,22 @@ docker exec ai-llm-ollama-1 ollama pull llava:7b            # vision/screenshots
 
 First model for InvokeAI — go to `images.mydomain.com` → Model Manager → search `sd-1.5-inpainting` → Install.
 
-## Open WebUI web search setup
+## SearXNG first-time fix
+SearXNG's wikidata engine fails on startup due to external blocks. Disable it:
+
+```bash
+# Find the line number
+sudo grep -n "name: wikidata" ~/docker/ai-llm/data/searxng/settings.yml
+
+# Add inactive: true after the engine line (replace 771 with actual line number)
+sudo sed -i '771a\    inactive: true' ~/docker/ai-llm/data/searxng/settings.yml
+
+# Verify
+sudo sed -n '769,774p' ~/docker/ai-llm/data/searxng/settings.yml
+
+# Restart
+docker compose -f ~/docker/ai-llm/docker-compose.yml restart searxng
+```
 In Open WebUI Admin Panel → Settings → Web Search:
 - Engine: Brave
 - API Key: get free key at `api.search.brave.com` (free $5/month credits, set spending cap to Free)