feat: add nocodb as optional service

add nocodb (open source airtable alternative) with:
- docker service definition with postgresql backend
- caddy reverse proxy configuration
- jwt secret auto-generation
- wizard integration for service selection
- welcome page dashboard entry
- readme and changelog updates

scripts/03_generate_secrets.sh

@@ -97,6 +97,7 @@ declare -A VARS_TO_GENERATE=(
     ["NEO4J_AUTH_PASSWORD"]="password:32" # Added Neo4j password
     ["NEO4J_AUTH_USERNAME"]="fixed:neo4j" # Added Neo4j username
     ["NEXTAUTH_SECRET"]="secret:64" # base64 encoded, 48 bytes -> 64 chars
+    ["NOCODB_JWT_SECRET"]="secret:64" # NocoDB authentication JWT secret
     ["PADDLEOCR_PASSWORD"]="password:32" # Added PaddleOCR basic auth password
     ["PG_META_CRYPTO_KEY"]="alphanum:32"
     ["POSTGRES_NON_ROOT_PASSWORD"]="password:32"

scripts/04_wizard.sh

@@ -53,6 +53,7 @@ base_services_data=(
     "monitoring" "Monitoring Suite (Prometheus, Grafana, cAdvisor, Node-Exporter)"
     "n8n" "n8n, n8n-worker, n8n-import (Workflow Automation)"
     "neo4j" "Neo4j (Graph Database)"
+    "nocodb" "NocoDB (Open Source Airtable Alternative - Spreadsheet Database)"
     "ollama" "Ollama (Local LLM Runner - select hardware in next step)"
     "open-webui" "Open WebUI (ChatGPT-like Interface)"
     "paddleocr" "PaddleOCR (OCR API Server)"

scripts/generate_welcome_page.sh

@@ -178,6 +178,20 @@ if is_profile_active "neo4j"; then
     }")
 fi
 
+# NocoDB
+if is_profile_active "nocodb"; then
+    SERVICES_ARRAY+=("    \"nocodb\": {
+      \"hostname\": \"$(json_escape "$NOCODB_HOSTNAME")\",
+      \"credentials\": {
+        \"note\": \"Create your account on first login\"
+      },
+      \"extra\": {
+        \"internal_api\": \"http://nocodb:8080\",
+        \"docs\": \"https://docs.nocodb.com\"
+      }
+    }")
+fi
+
 # SearXNG
 if is_profile_active "searxng"; then
     SERVICES_ARRAY+=("    \"searxng\": {