refactor: improve create pattern to avoid leaks

src/tui/mode/mini/buffer.zig

@@ -21,7 +21,8 @@ pub fn Create(options: type) type {
         const Self = @This();
 
         pub fn create(allocator: std.mem.Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
-            const self: *Self = try allocator.create(Self);
+            const self = try allocator.create(Self);
+            errdefer allocator.destroy(self);
             self.* = .{
                 .allocator = allocator,
                 .input = std.ArrayList(u8).init(allocator),

src/tui/mode/mini/file_browser.zig

@@ -35,7 +35,8 @@ pub fn Create(options: type) type {
         };
 
         pub fn create(allocator: std.mem.Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
-            const self: *Self = try allocator.create(Self);
+            const self = try allocator.create(Self);
+            errdefer allocator.destroy(self);
             self.* = .{
                 .allocator = allocator,
                 .file_path = std.ArrayList(u8).init(allocator),

src/tui/mode/mini/find.zig

@@ -28,7 +28,8 @@ commands: Commands = undefined,
 
 pub fn create(allocator: Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
     const editor = tui.get_active_editor() orelse return error.NotFound;
-    const self: *Self = try allocator.create(Self);
+    const self = try allocator.create(Self);
+    errdefer allocator.destroy(self);
     self.* = .{
         .allocator = allocator,
         .input_ = ArrayList(u8).init(allocator),

src/tui/mode/mini/find_in_files.zig

@@ -25,7 +25,8 @@ last_input: []u8 = "",
 commands: Commands = undefined,
 
 pub fn create(allocator: Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
-    const self: *Self = try allocator.create(Self);
+    const self = try allocator.create(Self);
+    errdefer allocator.destroy(self);
     self.* = .{ .allocator = allocator };
     try self.commands.init(self);
     if (tui.get_active_selection(self.allocator)) |text| {

src/tui/mode/mini/goto.zig

@@ -24,8 +24,9 @@ start: usize,
 commands: Commands = undefined,
 
 pub fn create(allocator: Allocator, _: command.Context) !struct { tui.Mode, tui.MiniMode } {
-    const self: *Self = try allocator.create(Self);
     const editor = tui.get_active_editor() orelse return error.NotFound;
+    const self = try allocator.create(Self);
+    errdefer allocator.destroy(self);
     self.* = .{
         .allocator = allocator,
         .start = editor.get_primary().cursor.row + 1,

src/tui/mode/mini/move_to_char.zig

@@ -38,7 +38,8 @@ pub fn create(allocator: Allocator, ctx: command.Context) !struct { tui.Mode, tu
     const direction: Direction = if (std.mem.indexOf(u8, operation_command, "_left")) |_| .left else .right;
     const operation: Operation = if (tui.get_active_editor()) |editor| if (editor.get_primary().selection) |_| .select else .move else .move;
 
-    const self: *Self = try allocator.create(Self);
+    const self = try allocator.create(Self);
+    errdefer allocator.destroy(self);
     self.* = .{
         .allocator = allocator,
         .direction = direction,

src/tui/mode/overlay/open_recent.zig

@@ -38,7 +38,8 @@ buffer_manager: ?*BufferManager,
 
 pub fn create(allocator: std.mem.Allocator) !tui.Mode {
     const mv = tui.mainview() orelse return error.NotFound;
-    const self: *Self = try allocator.create(Self);
+    const self = try allocator.create(Self);
+    errdefer allocator.destroy(self);
     self.* = .{
         .allocator = allocator,
         .modal = try ModalBackground.create(*Self, allocator, tui.mainview_widget(), .{ .ctx = self }),

src/tui/mode/overlay/palette.zig

@@ -47,7 +47,8 @@ pub fn Create(options: type) type {
 
         pub fn create(allocator: std.mem.Allocator) !tui.Mode {
             const mv = tui.mainview() orelse return error.NotFound;
-            const self: *Self = try allocator.create(Self);
+            const self = try allocator.create(Self);
+            errdefer allocator.destroy(self);
             self.* = .{
                 .allocator = allocator,
                 .modal = try ModalBackground.create(*Self, allocator, tui.mainview_widget(), .{