feat: update configuration loading to use viper and add environment variable overrides

go.mod

@@ -25,7 +25,8 @@ require (
 	github.com/qdrant/go-client v1.17.1
 	github.com/robfig/cron/v3 v3.0.1
 	github.com/silenceper/wechat/v2 v2.1.12
-	github.com/spf13/cast v1.6.0
+	github.com/spf13/cast v1.10.0
+	github.com/spf13/viper v1.21.0
 	github.com/wk8/go-ordered-map/v2 v2.1.8
 	github.com/xuri/excelize/v2 v2.10.1
 	github.com/yuin/goldmark v1.4.13
@@ -39,6 +40,16 @@ require (
 	gorm.io/gorm v1.25.12
 )
 
+require (
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
+	github.com/sagikazarmark/locafero v0.11.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+)
+
 require (
 	github.com/apache/arrow/go/v17 v17.0.0
 	github.com/aymerick/douceur v0.2.0 // indirect
@@ -55,7 +66,7 @@ require (
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/evanphx/json-patch v0.5.2 // indirect
-	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.12 // indirect
 	github.com/gin-contrib/sse v1.1.0 // indirect
 	github.com/glebarez/go-sqlite v1.21.2 // indirect