Fix CI: PTY echo timing normalization and workflow permissions

.github/workflows/claude-ci-fix.yaml

@@ -23,6 +23,7 @@ jobs:
       contents: write
       pull-requests: write
       actions: read
+      id-token: write
     steps:
       - name: 📂 Checkout code
         uses: actions/checkout@v6

tests/integration_tests/configure_shell.rs

@@ -983,6 +983,17 @@ mod pty_tests {
             .unwrap()
             .replace_all(&output, "");
 
+        // Remove echoed user input at end of prompt line (PTY echo timing varies).
+        // The prompt ends with [y/N/?][22m  and then the echoed input appears.
+        // Normalize to just the prompt without echoed input.
+        let output = regex::Regex::new(r"(\[y/N/\?\]\x1b\[22m) [yn]")
+            .unwrap()
+            .replace_all(&output, "$1 ");
+
+        // Remove standalone echoed input lines (just y or n on their own line)
+        // that appear due to PTY timing differences
+        let output = regex::Regex::new(r"^[yn]\n").unwrap().replace(&output, "");
+
         // Replace temp home path with ~/
         let home_path = temp_home.path().to_string_lossy();
         output.replace(&*home_path, "~").to_string()

tests/snapshots/integration__integration_tests__configure_shell__pty_tests__install_preview_declined.snap

@@ -2,7 +2,6 @@
 source: tests/integration_tests/configure_shell.rs
 expression: normalized
 ---
-n
 
 ❯ Install shell integration? [y/N/?] 
 ✗ Cancelled by user

tests/snapshots/integration__integration_tests__configure_shell__pty_tests__install_preview_with_gutter.snap

@@ -2,7 +2,6 @@
 source: tests/integration_tests/configure_shell.rs
 expression: normalized
 ---
-y
 
 ❯ Install shell integration? [y/N/?] 
 ✓ Added shell extension & completions for zsh @ ~/.zshrc