feat(overview): rework filter builder with editable chips and native date ranges

Editable filter chips, uniformly-sized value controls, working field-picker
search, and native date-range inputs with relative presets in place of the
vendored calendar — native inputs give year-jump, manual entry and keyboard
accessibility for free.

test/mv_web/member_live/index_chip_edit_test.exs

@@ -0,0 +1,91 @@
+defmodule MvWeb.MemberLive.IndexChipEditTest do
+  @moduledoc """
+  §1.18 — clicking an applied-filter chip body re-opens that filter's value
+  control pre-filled with the current value; a changed selection re-commits and
+  updates the chip; the × still removes the filter.
+  """
+  use MvWeb.ConnCase, async: false
+
+  import Phoenix.LiveViewTest
+
+  alias Mv.Membership.Group
+
+  setup %{conn: conn} do
+    actor = Mv.Helpers.SystemActor.get_system_actor()
+
+    {:ok, member} =
+      Mv.Membership.create_member(
+        %{first_name: "Edit", last_name: "Member", email: "edit@example.com"},
+        actor: actor
+      )
+
+    {:ok, group} =
+      Group |> Ash.Changeset.for_create(:create, %{name: "Board"}) |> Ash.create(actor: actor)
+
+    {:ok, _mg} =
+      Mv.Membership.create_member_group(%{member_id: member.id, group_id: group.id}, actor: actor)
+
+    %{conn: conn_with_oidc_user(conn), group: group}
+  end
+
+  test "clicking the chip body opens the value control pre-filled with the current value", %{
+    conn: conn,
+    group: group
+  } do
+    {:ok, view, _html} = live(conn, "/members?group_#{group.id}=in")
+
+    refute has_element?(view, "[data-testid='value-control-group']")
+
+    view |> element("[data-testid='filter-chip-edit']") |> render_click()
+
+    # The group control opens with this group's "is" (in) operator pre-selected.
+    assert has_element?(view, "[data-testid='value-control-group']")
+    assert has_element?(view, "input[name='group_#{group.id}'][value='in'][checked]")
+  end
+
+  test "the value control opens anchored under the edited chip, not as a new pending chip", %{
+    conn: conn,
+    group: group
+  } do
+    {:ok, view, _html} = live(conn, "/members?group_#{group.id}=in")
+
+    view |> element("[data-testid='filter-chip-edit']") |> render_click()
+
+    # §1.18: the control is a descendant of the chip's own list item (anchored in
+    # place under that chip), and no separate pending chip is spun up at the row.
+    assert has_element?(
+             view,
+             "[data-testid='filter-chip-item'] [data-testid='value-control-group']"
+           )
+
+    refute has_element?(view, "[data-testid='pending-chip']")
+    refute has_element?(view, "[data-testid='pending-filter']")
+  end
+
+  test "changing the value from the re-opened control re-commits and updates the URL", %{
+    conn: conn,
+    group: group
+  } do
+    {:ok, view, _html} = live(conn, "/members?group_#{group.id}=in")
+
+    view |> element("[data-testid='filter-chip-edit']") |> render_click()
+
+    view
+    |> element("[data-testid='value-control-group']")
+    |> render_change(%{"group_#{group.id}" => "not_in"})
+
+    _ = render(view)
+    path = assert_patch(view)
+    assert path =~ "group_#{group.id}=not_in"
+  end
+
+  test "the × still removes the filter", %{conn: conn, group: group} do
+    {:ok, view, _html} = live(conn, "/members?group_#{group.id}=in")
+
+    view |> element("[data-testid='filter-chip-remove']") |> render_click()
+
+    path = assert_patch(view)
+    refute path =~ "group_#{group.id}"
+    refute has_element?(view, "[data-testid='filter-chip']")
+  end
+end