feat: add detailed mode descriptions for checkpointDiff options and update tooltip text in ChatRow

Author: NaccOll

src/core/checkpoints/index.ts

@@ -273,6 +273,12 @@ export type CheckpointDiffOptions = {
 	ts?: number
 	previousCommitHash?: string
 	commitHash: string
+	/**
+	 * from-init: Compare from the first checkpoint to the selected checkpoint.
+	 * checkpoint: Compare the selected checkpoint to the next checkpoint.
+	 * to-current: Compare the selected checkpoint to the current workspace.
+	 * full: Compare from the first checkpoint to the current workspace.
+	 */
 	mode: "from-init" | "checkpoint" | "to-current" | "full"
 }
 

webview-ui/src/components/chat/ChatRow.tsx

@@ -974,7 +974,7 @@ export const ChatRowContent = ({
 	const viewFullDiffBtn =
 		hasCheckpoint && isLast && !isStreaming ? (
 			<div style={{ marginTop: 16, display: "flex", justifyContent: "flex-start" }}>
-				<StandardTooltip content={t("chat:showChangesFromInit")}>
+				<StandardTooltip content={t("chat:checkpoint.menu.viewDiffFromInit")}>
 					<VSCodeButton
 						appearance="primary"
 						className="flex-1 mr-[6px]"