refactor(plan): remove unused ExecutionItemDisplay::and_item_index field

The `and_item_index` field on `ExecutionItemDisplay` was only ever written,
never read by any reporter or execution code. Remove it and regenerate the
plan snapshots. The distinct `and_item_index` on `ExecutionCacheKey::UserTask`
is part of the cache key and is unaffected.

https://claude.ai/code/session_01LXLpjxLchyX5FyD8Fzmxqp

Author: claude

crates/vite_task/src/session/reporter/mod.rs

@@ -465,7 +465,6 @@ pub mod test_fixtures {
         ExecutionItemDisplay {
             task_display: test_task_display(name),
             command: name.into(),
-            and_item_index: None,
             cwd: test_path(),
         }
     }

crates/vite_task_plan/src/lib.rs

@@ -103,10 +103,6 @@ pub struct ExecutionItemDisplay {
     /// `SpawnExecution` contains the actual args for execution.
     pub command: Str,
 
-    /// The index of this execution item among all items in the task's command split by `&&`.
-    /// If the task's command doesn't have `&&`, this will be `None`.
-    pub and_item_index: Option<usize>,
-
     /// The cwd when this execution item is planned.
     /// This is for displaying purpose only.
     ///

crates/vite_task_plan/src/plan.rs

@@ -175,7 +175,6 @@ async fn plan_task_as_execution_node(
                     }
                     command
                 },
-                and_item_index: if and_item_count > 1 { Some(index) } else { None },
                 cwd: Arc::clone(&cwd),
                 task_display: task_node.task_display.clone(),
             };
@@ -345,7 +344,6 @@ async fn plan_task_as_execution_node(
 
         let execution_item_display = ExecutionItemDisplay {
             command: command_str.into(),
-            and_item_index: None,
             cwd,
             task_display: task_node.task_display.clone(),
         };

crates/vite_task_plan/tests/plan_snapshots/fixtures/additional_env/snapshots/query_tool_synthetic_task_in_user_task.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "TEST_VAR=hello_world vt tool print-env TEST_VAR",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___cache_does_not_override_per_task_cache_false.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file vite-task.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___cache_enables_script_caching.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file package.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___cache_enables_task_caching_even_when_cache_tasks_is_false.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file package.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___cache_on_task_with_per_task_cache_true_enables_caching.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file package.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___no_cache_disables_task_caching.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file package.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {

crates/vite_task_plan/tests/plan_snapshots/fixtures/cache_cli_override/snapshots/query___no_cache_overrides_per_task_cache_true.jsonc

@@ -21,7 +21,6 @@
                 "package_path": "<workspace>/"
               },
               "command": "vtt print-file package.json",
-              "and_item_index": null,
               "cwd": "<workspace>/"
             },
             "kind": {