refactor: remove footgun prompting (file-based system prompt override)

packages/evals/README.md

@@ -37,7 +37,7 @@ Additionally, you'll find in Docker Desktop that database and redis services are
 
 Navigate to [localhost:3446](http://localhost:3446/) in your browser and click the 🚀 button.
 
-By default a evals run will run all programming exercises in [Roo Code Evals](https://github.com/RooCodeInc/Roo-Code-Evals) repository with the Claude Sonnet 4 model and default settings. For basic configuration you can specify the LLM to use and any subset of the exercises you'd like. For advanced configuration you can import a Roo Code settings file which will allow you to run the evals with Roo Code configured any way you'd like (this includes custom modes, a footgun prompt, etc).
+By default a evals run will run all programming exercises in [Roo Code Evals](https://github.com/RooCodeInc/Roo-Code-Evals) repository with the Claude Sonnet 4 model and default settings. For basic configuration you can specify the LLM to use and any subset of the exercises you'd like. For advanced configuration you can import a Roo Code settings file which will allow you to run the evals with Roo Code configured any way you'd like (this includes custom modes, custom instructions, etc).
 
 <img width="1053" src="https://github.com/user-attachments/assets/2367eef4-6ae9-4ac2-8ee4-80f981046486" />
 

packages/types/src/vscode-extension-host.ts

@@ -381,7 +381,6 @@ export type ExtensionState = Pick<
 	lastShownAnnouncementId?: string
 	apiModelId?: string
 	mcpServers?: McpServer[]
-	hasSystemPromptOverride?: boolean
 	mdmCompliant?: boolean
 	remoteControlEnabled: boolean
 	taskSyncEnabled: boolean
@@ -645,7 +644,6 @@ export interface WebviewMessage {
 	newSkillModeSlugs?: string[] // For updateSkillModes (new mode restrictions)
 	requestId?: string
 	ids?: string[]
-	hasSystemPromptOverride?: boolean
 	terminalOperation?: "continue" | "abort"
 	messageTs?: number
 	restoreCheckpoint?: boolean