fix: handle Claude Code 5-hour rate limit errors gracefully

- Detect 5-hour rate limit errors in Claude Code provider
- Replace verbose error messages containing system prompts with a clean, user-friendly message
- Add translation key for rate limit message

Fixes #7778

Author: roomote

src/api/providers/claude-code.ts

@@ -82,9 +82,30 @@ export class ClaudeCodeHandler extends BaseProvider implements ApiHandler {
 
 						const error = this.attemptParse(errorMessage)
 						if (!error) {
+							// Check if this is a 5-hour rate limit error
+							// These errors typically contain system prompts and are very long
+							if (
+								content.text.includes("5-hour") ||
+								content.text.includes("5 hour") ||
+								content.text.includes("rate limit") ||
+								content.text.includes("quota")
+							) {
+								throw new Error(t("common:errors.claudeCode.rateLimitReached"))
+							}
 							throw new Error(content.text)
 						}
 
+						// Check for 5-hour rate limit in parsed error
+						if (
+							error.error?.message &&
+							(error.error.message.includes("5-hour") ||
+								error.error.message.includes("5 hour") ||
+								error.error.message.includes("rate limit") ||
+								error.error.message.includes("quota"))
+						) {
+							throw new Error(t("common:errors.claudeCode.rateLimitReached"))
+						}
+
 						if (error.error.message.includes("Invalid model name")) {
 							throw new Error(
 								content.text + `\n\n${t("common:errors.claudeCode.apiKeyModelPlanMismatch")}`,

src/i18n/locales/en/common.json

@@ -85,7 +85,8 @@
 			"processExitedWithError": "Claude Code process exited with code {{exitCode}}. Error output: {{output}}",
 			"stoppedWithReason": "Claude Code stopped with reason: {{reason}}",
 			"apiKeyModelPlanMismatch": "API keys and subscription plans allow different models. Make sure the selected model is included in your plan.",
-			"notFound": "Claude Code executable '{{claudePath}}' not found.\n\nPlease install Claude Code CLI:\n1. Visit {{installationUrl}} to download Claude Code\n2. Follow the installation instructions for your operating system\n3. Ensure the 'claude' command is available in your PATH\n4. Alternatively, configure a custom path in Roo settings under 'Claude Code Path'\n\nOriginal error: {{originalError}}"
+			"notFound": "Claude Code executable '{{claudePath}}' not found.\n\nPlease install Claude Code CLI:\n1. Visit {{installationUrl}} to download Claude Code\n2. Follow the installation instructions for your operating system\n3. Ensure the 'claude' command is available in your PATH\n4. Alternatively, configure a custom path in Roo settings under 'Claude Code Path'\n\nOriginal error: {{originalError}}",
+			"rateLimitReached": "5-hour usage limit reached. Please wait for the limit to reset before continuing."
 		},
 		"gemini": {
 			"generate_stream": "Gemini generate context stream error: {{error}}",