fix(condense): update SUMMARY_PROMPT to use general AI assistant introduction

Replace task-specific summarization instruction with a more neutral AI
assistant prompt that describes the assistant's role for summarization.

Author: hannesrudolph

src/core/condense/__tests__/index.spec.ts

@@ -839,7 +839,7 @@ describe("summarizeConversation", () => {
 
 		// Verify that createMessage was called with the simple system prompt
 		expect(mockApiHandler.createMessage).toHaveBeenCalledWith(
-			"Summarize the conversation so far, as described in the prompt instructions.",
+			"You are a helpful AI assistant tasked with summarizing conversations.",
 			expect.any(Array),
 		)
 
@@ -1542,9 +1542,7 @@ describe("summarizeConversation with custom settings", () => {
 		// Verify the default prompt was used (simple system prompt)
 		let createMessageCalls = (mockMainApiHandler.createMessage as Mock).mock.calls
 		expect(createMessageCalls.length).toBe(1)
-		expect(createMessageCalls[0][0]).toBe(
-			"Summarize the conversation so far, as described in the prompt instructions.",
-		)
+		expect(createMessageCalls[0][0]).toBe("You are a helpful AI assistant tasked with summarizing conversations.")
 
 		// Reset mock and test with undefined
 		vi.clearAllMocks()
@@ -1561,9 +1559,7 @@ describe("summarizeConversation with custom settings", () => {
 		// Verify the default prompt was used again (simple system prompt)
 		createMessageCalls = (mockMainApiHandler.createMessage as Mock).mock.calls
 		expect(createMessageCalls.length).toBe(1)
-		expect(createMessageCalls[0][0]).toBe(
-			"Summarize the conversation so far, as described in the prompt instructions.",
-		)
+		expect(createMessageCalls[0][0]).toBe("You are a helpful AI assistant tasked with summarizing conversations.")
 	})
 
 	/**

src/core/condense/index.ts

@@ -155,7 +155,7 @@ export const N_MESSAGES_TO_KEEP = 3
 export const MIN_CONDENSE_THRESHOLD = 5 // Minimum percentage of context window to trigger condensing
 export const MAX_CONDENSE_THRESHOLD = 100 // Maximum percentage of context window to trigger condensing
 
-const SUMMARY_PROMPT = "Summarize the conversation so far, as described in the prompt instructions."
+const SUMMARY_PROMPT = "You are a helpful AI assistant tasked with summarizing conversations."
 
 export type SummarizeResponse = {
 	messages: ApiMessage[] // The messages after summarization