Refactor configuration management and enhance build process

- Introduced a YAML-based configuration system, allowing for automatic generation of a default `config.yaml` file.
- Updated the application to load configuration settings from the YAML file, improving flexibility and ease of use.
- Added a Makefile to streamline development tasks, including running the application, testing, and managing dependencies.
- Enhanced `.gitignore` to include build artifacts and configuration files.
- Removed unused Prometheus metrics and related code to simplify the codebase.
- Updated dependencies in `go.mod` and `go.sum` for improved functionality and performance.

go.mod

@@ -4,22 +4,16 @@ go 1.23.0
 
 require (
 	github.com/docker/go-units v0.5.0
-	github.com/prometheus/client_golang v1.22.0
+	github.com/edsrzf/mmap-go v1.1.0
 	github.com/rs/zerolog v1.33.0
 	github.com/spf13/cobra v1.8.1
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
-	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
-	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.62.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	golang.org/x/sys v0.30.0 // indirect
-	google.golang.org/protobuf v1.36.5 // indirect
+	golang.org/x/sys v0.12.0 // indirect
 )