refactor: extract core-api to standalone repository

Core-API service moved to git.schweitz.net/jpmschweitzer/core-api
- Source code removed from this repository
- Stack file updated to use container image from Gitea registry
- Documentation updated with external service reference
- Removed obsolete docs/services/core-api.md (docs now in core-api repo)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

stacks/core-api.yml

@@ -5,38 +5,14 @@ version: '3.8'
 # Port: 8083 (HTTP API)
 # Network: docker-dataplane (shared infrastructure network)
 #
-# Setup: Create venv before first deployment:
-#   cd /home/jpmschweitzer/Projects/portainer-core/services/core-api
-#   python3 -m venv .venv
-#   source .venv/bin/activate
-#   pip install -r requirements.txt
+# Container image built from: git.schweitz.net/jpmschweitzer/core-api
 
 services:
   core-api:
-    image: python:3.12
+    image: git.schweitz.net/jpmschweitzer/core-api:latest
     container_name: core-api
     restart: unless-stopped
 
-    # Production mode with workers
-    # Always sync dependencies on startup to catch requirements.txt changes
-    command: >
-      sh -c "
-      echo 'Setting up Python environment...' &&
-      if [ ! -d /venv ]; then
-        echo 'Creating new venv...' &&
-        python3 -m venv /venv;
-      fi &&
-      echo 'Upgrading pip...' &&
-      /venv/bin/pip install --upgrade pip &&
-      echo 'Installing/updating dependencies from requirements.txt...' &&
-      /venv/bin/pip install -r /app/requirements.txt &&
-      echo 'Starting uvicorn server...' &&
-      /venv/bin/uvicorn src.main:app
-      --host 0.0.0.0
-      --port 8083
-      --workers 1
-      "
-
     ports:
       - "8083:8083"
 
@@ -89,13 +65,7 @@ services:
       - PYTHONPATH=/app
 
     volumes:
-      # Mount source code for live editing (not .venv - that's container-specific)
-      - /home/jpmschweitzer/Projects/portainer-core/services/core-api:/app
-
-      # Persist container's venv for fast restarts
-      - /home/jpmschweitzer/docker-data/core-api/venv:/venv
-
-      # Persist logs
+      # Data volumes only - no source code
       - /home/jpmschweitzer/docker-data/core-api/logs:/app/logs
 
       # Docker socket for direct container access (fallback when Portainer API incomplete)