fix(deps): Use correct google.golang.org/genai module path

Fixes CI build failures caused by module path mismatch. Previously
required github.com/charmbracelet/go-genai with a replace directive,
but the actual module declares itself as google.golang.org/genai.

Changes:
- Update go.mod to directly require google.golang.org/genai v1.32.0
- Remove replace directive for charmbracelet fork
- Update import in providers/google/google.go

This unblocks 3 pending Renovate MRs (#13, #11, #10) and fixes
main branch CI pipeline failures.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: OutBot CI

go.mod

@@ -7,7 +7,6 @@ require (
 	github.com/aws/aws-sdk-go-v2 v1.39.4
 	github.com/aws/smithy-go v1.23.1
 	github.com/charmbracelet/anthropic-sdk-go v0.0.0-20251022202715-ec1499142678
-	github.com/charmbracelet/go-genai v0.0.0-20250923194548-a075d35ad44a
 	github.com/charmbracelet/x/exp/slice v0.0.0-20251023181713-f594ac034d6b
 	github.com/charmbracelet/x/json v0.2.0
 	github.com/go-viper/mapstructure/v2 v2.4.0
@@ -17,12 +16,10 @@ require (
 	github.com/stretchr/testify v1.11.1
 	go.yaml.in/yaml/v4 v4.0.0-rc.2
 	golang.org/x/oauth2 v0.32.0
+	google.golang.org/genai v1.32.0
 	gopkg.in/dnaeon/go-vcr.v4 v4.0.6-0.20250926081054-3f654157e4a1
 )
 
-// Replace directives for Charmbracelet forks with upstream module paths
-replace github.com/charmbracelet/go-genai => google.golang.org/genai v0.0.0-20250923194548-a075d35ad44a
-
 require (
 	cloud.google.com/go v0.116.0 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
@@ -68,7 +65,6 @@ require (
 	golang.org/x/text v0.28.0 // indirect
 	golang.org/x/time v0.12.0 // indirect
 	google.golang.org/api v0.239.0 // indirect
-	google.golang.org/genai v1.32.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 // indirect
 	google.golang.org/grpc v1.74.2 // indirect
 	google.golang.org/protobuf v1.36.7 // indirect

go.sum

@@ -137,8 +137,6 @@ golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
 golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
 google.golang.org/api v0.239.0 h1:2hZKUnFZEy81eugPs4e2XzIJ5SOwQg0G82bpXD65Puo=
 google.golang.org/api v0.239.0/go.mod h1:cOVEm2TpdAGHL2z+UwyS+kmlGr3bVWQQ6sYEqkKje50=
-google.golang.org/genai v0.0.0-20250923194548-a075d35ad44a h1:nLGFv9SOTI/hzbwB/b7B1G3r++N0m/mYGIMUdZDwEJ8=
-google.golang.org/genai v0.0.0-20250923194548-a075d35ad44a/go.mod h1:OClfdf+r5aaD+sCd4aUSkPzJItmg2wD/WON9lQnRPaY=
 google.golang.org/genai v1.32.0 h1:kku/m3kWOncjnw8EIa2sgmrPLhaxFHaP+uqOq5ZckvI=
 google.golang.org/genai v1.32.0/go.mod h1:7pAilaICJlQBonjKKJNhftDFv3SREhZcTe9F6nRcjbg=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 h1:fc6jSaCT0vBduLYZHYrBBNY4dsWuvgyff9noRNDdBeE=

providers/google/google.go

@@ -13,9 +13,9 @@ import (
 	"charm.land/fantasy"
 	"charm.land/fantasy/providers/anthropic"
 	"cloud.google.com/go/auth"
-	"github.com/charmbracelet/go-genai"
 	"github.com/charmbracelet/x/exp/slice"
 	"github.com/google/uuid"
+	"google.golang.org/genai"
 )
 
 // Name is the name of the Google provider.