Fix shell-integration-features being ignored when `shell-integratio…

…n` is `none`

src/termio/Exec.zig

@@ -875,7 +875,11 @@ const Subprocess = struct {
             };
 
             const force: ?shell_integration.Shell = switch (cfg.shell_integration) {
-                .none => break :shell .{ null, default_shell_command },
+                .none => {
+                    // Even if shell integration is none, we still want to set up the feature env vars
+                    try shell_integration.setup_features(&env, cfg.shell_integration_features);
+                    break :shell .{ null, default_shell_command };
+                },
                 .detect => null,
                 .bash => .bash,
                 .elvish => .elvish,

src/termio/shell_integration.zig

@@ -114,9 +114,7 @@ pub fn setup(
     };
 
     // Setup our feature env vars
-    if (!features.cursor) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_CURSOR", "1");
-    if (!features.sudo) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_SUDO", "1");
-    if (!features.title) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_TITLE", "1");
+    try setup_features(env, features);
 
     return result;
 }
@@ -138,6 +136,17 @@ test "force shell" {
     }
 }
 
+/// Setup shell integration feature environment variables without
+/// performing full shell integration setup.
+pub fn setup_features(
+    env: *EnvMap,
+    features: config.ShellIntegrationFeatures,
+) !void {
+    if (!features.cursor) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_CURSOR", "1");
+    if (!features.sudo) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_SUDO", "1");
+    if (!features.title) try env.put("GHOSTTY_SHELL_INTEGRATION_NO_TITLE", "1");
+}
+
 /// Setup the bash automatic shell integration. This works by
 /// starting bash in POSIX mode and using the ENV environment
 /// variable to load our bash integration script. This prevents