fix(deployments): fix broken config mount and expand env example

- Fix docker-compose.yaml: mount config.dev.yaml instead of nonexistent
  configs/config.yaml
- Add deployments/config.dev.yaml with Docker service names and dev
  defaults for zero-setup make docker-up
- Expand .env.example with all SILO_* and LDAP_* variables
- Update config.example.yaml hostnames to localhost with Docker comments
- Add deployments/config.docker.yaml to .gitignore (generated file)

config.example.yaml

@@ -8,20 +8,20 @@ server:
   # read_only: false  # Reject all write operations; toggle at runtime with SIGUSR1
 
 database:
-  host: "psql.example.internal"
+  host: "localhost" # Use "postgres" for Docker Compose
   port: 5432
   name: "silo"
   user: "silo"
   password: "" # Use SILO_DB_PASSWORD env var
-  sslmode: "require"
+  sslmode: "require" # Use "disable" for Docker Compose (internal network)
   max_connections: 10
 
 storage:
-  endpoint: "minio.example.internal:9000"
+  endpoint: "localhost:9000" # Use "minio:9000" for Docker Compose
   access_key: "" # Use SILO_MINIO_ACCESS_KEY env var
   secret_key: "" # Use SILO_MINIO_SECRET_KEY env var
   bucket: "silo-files"
-  use_ssl: true
+  use_ssl: true # Use false for Docker Compose (internal network)
   region: "us-east-1"
 
 schemas: