feat(hooks): add tools.ts example hook for interactive tool enable/disable

- /tools command opens SettingsList-based selector for all loaded tools
- Space/Enter toggles individual tools between enabled/disabled
- Changes apply immediately on toggle (like /settings)
- Tool selection persisted to session via appendEntry()
- State restored from current branch on session_start, session_tree, session_branch
- Uses getBranch() to respect branch-specific tool configuration
- Export getSettingsListTheme and getSelectListTheme for hooks to use

packages/ai/src/models.generated.ts

@@ -4092,13 +4092,13 @@ export const MODELS = {
 			reasoning: true,
 			input: ["text"],
 			cost: {
-				input: 0.3,
-				output: 1.2,
-				cacheRead: 0.03,
-				cacheWrite: 0.375,
+				input: 0.12,
+				output: 0.48,
+				cacheRead: 0,
+				cacheWrite: 0,
 			},
-			contextWindow: 204800,
-			maxTokens: 131072,
+			contextWindow: 196608,
+			maxTokens: 4096,
 		} satisfies Model<"openai-completions">,
 		"mistralai/codestral-2508": {
 			id: "mistralai/codestral-2508",