create backend

config/config.exs

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+import Config
+
+config :mound_hunters,
+  python_cli_path: System.get_env("PYTHON_CLI_PATH", "./cli.py"),
+  las2mound_script_path: System.get_env("LAS2MOUND_PATH", "./tooling/las2mound.py"),
+  tile_output_dir: "data",
+  tile_temp_dir: "priv/tmp",
+  mnesia_dir: ~c"priv/mnesia",
+  http_port: String.to_integer(System.get_env("PORT", "4000")),
+  log_dir: "priv/logs"
+
+# Logger configuration
+config :logger,
+  backends: [:console, {LoggerFileBackend, :request_log}]
+
+config :logger, :console,
+  format: "[$level] $message\n",
+  metadata: [:request_id]
+
+config :logger, :request_log,
+  path: "priv/logs/requests.jsonl",
+  level: :info,
+  format: "$message\n",
+  metadata: []
+
+# Import environment specific config
+import_config "#{config_env()}.exs"

config/dev.exs

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+import Config
+
+# Development-specific configuration
+config :logger, :console,
+  format: "[$level] $message\n",
+  metadata: [:request_id]

config/prod.exs

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+import Config
+
+config :logger, level: :info

config/test.exs

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+import Config
+
+config :mound_hunters,
+  http_port: 4001,
+  mnesia_dir: ~c"priv/mnesia_test"
+
+config :logger, level: :warning