feat(coding-agent): add blockImages setting to prevent image uploads

packages/coding-agent/src/core/settings-manager.ts

@@ -36,6 +36,7 @@ export interface TerminalSettings {
 
 export interface ImageSettings {
 	autoResize?: boolean; // default: true (resize images to 2000x2000 max for better model compatibility)
+	blockImages?: boolean; // default: false - when true, prevents all images from being sent to LLM providers
 }
 
 export interface Settings {
@@ -398,6 +399,23 @@ export class SettingsManager {
 		this.save();
 	}
 
+	getBlockImages(): boolean {
+		return this.settings.images?.blockImages ?? false;
+	}
+
+	setBlockImages(blocked: boolean): void {
+		if (!this.globalSettings.images) {
+			this.globalSettings.images = {};
+		}
+		this.globalSettings.images.blockImages = blocked;
+		// Also update active settings for inMemory mode
+		if (!this.settings.images) {
+			this.settings.images = {};
+		}
+		this.settings.images.blockImages = blocked;
+		this.save();
+	}
+
 	getEnabledModels(): string[] | undefined {
 		return this.settings.enabledModels;
 	}