fix: use array and new pluralized name for credential overrides

Signed-off-by: Nick Hale <4175918+njhale@users.noreply.github.com>

Author: njhale

opts.go

@@ -28,14 +28,14 @@ func (g GlobalOptions) toEnv() []string {
 type Options struct {
 	GlobalOptions `json:",inline"`
 
-	Confirm            bool   `json:"confirm"`
-	Input              string `json:"input"`
-	DisableCache       bool   `json:"disableCache"`
-	CacheDir           string `json:"cacheDir"`
-	SubTool            string `json:"subTool"`
-	Workspace          string `json:"workspace"`
-	ChatState          string `json:"chatState"`
-	IncludeEvents      bool   `json:"includeEvents"`
-	Prompt             bool   `json:"prompt"`
-	CredentialOverride string `json:"credentialOverride"`
+	Confirm             bool     `json:"confirm"`
+	Input               string   `json:"input"`
+	DisableCache        bool     `json:"disableCache"`
+	CacheDir            string   `json:"cacheDir"`
+	SubTool             string   `json:"subTool"`
+	Workspace           string   `json:"workspace"`
+	ChatState           string   `json:"chatState"`
+	IncludeEvents       bool     `json:"includeEvents"`
+	Prompt              bool     `json:"prompt"`
+	CredentialOverrides []string `json:"credentialOverrides"`
 }