[Bug]: Fix TypeError crash in tool.execute.after hooks when output.output is undefined

src/hooks/comment-checker/hook.ts

@@ -91,6 +91,8 @@ export function createCommentCheckerHooks(config?: CommentCheckerConfig) {
 
       const toolLower = input.tool.toLowerCase()
 
+      if (typeof output.output !== 'string') return
+
       // Only skip if the output indicates a tool execution failure
       const outputLower = output.output.toLowerCase()
       const isToolFailure =

src/hooks/edit-error-recovery/hook.ts

@@ -43,6 +43,7 @@ export function createEditErrorRecoveryHook(_ctx: PluginInput) {
       output: { title: string; output: string; metadata: unknown }
     ) => {
       if (input.tool.toLowerCase() !== "edit") return
+      if (typeof output.output !== 'string') return
 
       const outputLower = output.output.toLowerCase()
       const hasEditError = EDIT_ERROR_PATTERNS.some((pattern) =>

src/hooks/task-resume-info/hook.ts

@@ -21,6 +21,7 @@ export function createTaskResumeInfoHook() {
     output: { title: string; output: string; metadata: unknown }
   ) => {
     if (!TARGET_TOOLS.includes(input.tool)) return
+    if (typeof output.output !== 'string') return
     if (output.output.startsWith("Error:") || output.output.startsWith("Failed")) return
     if (output.output.includes("\nto continue:")) return