reimplement agent,provider and add file history

go.mod

@@ -23,7 +23,6 @@ require (
 	github.com/golang-migrate/migrate/v4 v4.18.2
 	github.com/google/generative-ai-go v0.19.0
 	github.com/google/uuid v1.6.0
-	github.com/kujtimiihoxha/vimtea v0.0.3-0.20250329221256-a250e98498f9
 	github.com/lrstanley/bubblezone v0.0.0-20250315020633-c249a3fe1231
 	github.com/mark3labs/mcp-go v0.17.0
 	github.com/mattn/go-runewidth v0.0.16
@@ -36,7 +35,6 @@ require (
 	github.com/spf13/cobra v1.9.1
 	github.com/spf13/viper v1.20.0
 	github.com/stretchr/testify v1.10.0
-	golang.org/x/net v0.39.0
 	google.golang.org/api v0.215.0
 )
 
@@ -106,7 +104,6 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sagikazarmark/locafero v0.7.0 // indirect
-	github.com/sahilm/fuzzy v0.1.1 // indirect
 	github.com/skeema/knownhosts v1.3.1 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.12.0 // indirect
@@ -129,11 +126,8 @@ require (
 	go.opentelemetry.io/otel/trace v1.29.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	golang.design/x/clipboard v0.7.0 // indirect
 	golang.org/x/crypto v0.37.0 // indirect
-	golang.org/x/exp/shiny v0.0.0-20250305212735-054e65f0b394 // indirect
-	golang.org/x/image v0.14.0 // indirect
-	golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a // indirect
+	golang.org/x/net v0.39.0 // indirect
 	golang.org/x/oauth2 v0.25.0 // indirect
 	golang.org/x/sync v0.13.0 // indirect
 	golang.org/x/sys v0.32.0 // indirect