fix: add TelemetryService mock to existing error handling tests

- Fix bedrock-error-handling.spec.ts (21 failing tests)
- Fix mistral.spec.ts (2 failing tests)
- Fix xai.spec.ts (1 failing test)
- Use vi.hoisted() to ensure mock is initialized before vi.mock()

Author: daniel-lxs

src/api/providers/__tests__/bedrock-error-handling.spec.ts

@@ -1,3 +1,13 @@
+// Mock TelemetryService - must come before other imports
+const mockCaptureException = vi.hoisted(() => vi.fn())
+vi.mock("@roo-code/telemetry", () => ({
+	TelemetryService: {
+		instance: {
+			captureException: mockCaptureException,
+		},
+	},
+}))
+
 // Mock BedrockRuntimeClient and commands
 const mockSend = vi.fn()
 
@@ -27,6 +37,7 @@ describe("AwsBedrockHandler Error Handling", () => {
 
 	beforeEach(() => {
 		vi.clearAllMocks()
+		mockCaptureException.mockClear()
 		handler = new AwsBedrockHandler({
 			apiModelId: "anthropic.claude-3-5-sonnet-20241022-v2:0",
 			awsAccessKey: "test-access-key",

src/api/providers/__tests__/mistral.spec.ts

@@ -1,3 +1,13 @@
+// Mock TelemetryService - must come before other imports
+const mockCaptureException = vi.hoisted(() => vi.fn())
+vi.mock("@roo-code/telemetry", () => ({
+	TelemetryService: {
+		instance: {
+			captureException: mockCaptureException,
+		},
+	},
+}))
+
 // Mock Mistral client - must come before other imports
 const mockCreate = vi.fn()
 const mockComplete = vi.fn()
@@ -59,6 +69,7 @@ describe("MistralHandler", () => {
 		handler = new MistralHandler(mockOptions)
 		mockCreate.mockClear()
 		mockComplete.mockClear()
+		mockCaptureException.mockClear()
 	})
 
 	describe("constructor", () => {

src/api/providers/__tests__/xai.spec.ts

@@ -1,5 +1,15 @@
 // npx vitest api/providers/__tests__/xai.spec.ts
 
+// Mock TelemetryService - must come before other imports
+const mockCaptureException = vitest.hoisted(() => vitest.fn())
+vitest.mock("@roo-code/telemetry", () => ({
+	TelemetryService: {
+		instance: {
+			captureException: mockCaptureException,
+		},
+	},
+}))
+
 const mockCreate = vitest.fn()
 
 vitest.mock("openai", () => {
@@ -25,6 +35,7 @@ describe("XAIHandler", () => {
 		// Reset all mocks
 		vi.clearAllMocks()
 		mockCreate.mockClear()
+		mockCaptureException.mockClear()
 
 		// Create handler with mock
 		handler = new XAIHandler({})