My Sea form col + SPREAD dropdown w. 3-card/6-card section dividers — Sprint 5 iter 3 of My Sea roadmap — TDD

Picker phase form col: SPREAD combobox w. 6 spread options under 2 horizontal section dividers ("3-card spreads" / "6-card spreads"), reversal-% caption, GRAVITY + LEVITY deck swatches, LOCK HAND + DEL btns. Default = Situation, Action, Outcome (a 3-card spread). Selecting a 6-card spread (Celtic Cross Waite-Smith or Escape Velocity) swaps `.my-sea-cross[data-spread-shape]` from `three-card` to `six-card` — revealing the crown / lay / cross cells that the default 3-card variants hide.

Naming correction (user-locked): the spread itself is a "three-card spread" not a "three-card cross" — "cross" stays scoped to the Celtic Cross variants (6-card spreads). CSS class `.my-sea-cross` carries grid-container semantics regardless of which spread shape is active; the spread-vs-cross distinction lives at the spread-name layer only.

- **View** (gameboard/views.py): `my_sea` adds `default_spread = "situation-action-outcome"` + `reversals_pct = 25` context keys.
- **Template** (my_sea.html): renders all 7 cross cells (crown/leave/core+cover+cross/loom/lay) unconditionally + adds `data-spread-shape="three-card"` to `.my-sea-cross`. Form col DRY-reuses gameroom `_sea_overlay.html`'s `.sea-form-col` shape — `.sea-form-main` w. `.sea-field` (SPREAD label + reversal hint + custom combobox) + `.sea-stacks` (GRAVITY + LEVITY swatches) + `.sea-form-actions` (LOCK HAND + DEL). 6 options + 2 dividers in the combobox `<ul>`; dividers are `role="presentation"` so `combobox.js` skips them naturally. Inline IIFE listens for the hidden `<input id="id_sea_spread">`'s `change` event + sets `.my-sea-cross`'s `data-spread-shape` based on whether the value is in `['waite-smith', 'escape-velocity']`. No new combobox.js wiring — the existing module's `change`-bubbling contract feeds straight in.
- **SCSS** (_gameboard.scss):
  - `.my-sea-cross[data-spread-shape="three-card"]` — single-row `"leave core loom"` grid + `display: none` on crown/lay/cross.
  - `.my-sea-cross[data-spread-shape="six-card"]` — inherits the gameroom `.sea-cross`'s 3×3 grid + reveals all cells.
  - `.sea-select-divider` — section header style mirrors `.kit-bag-label`'s small-uppercase-underlined-letter-spaced --quaUser/0.75 treatment but HORIZONTAL (kit-bag uses `writing-mode: vertical-rl`; dropdown menus are flat). `pointer-events: none` belt-and-braces against accidental click/hover.
  - `.my-sea-form-col` — width-constrains the form col so the picker's cross + form sit side-by-side.

**Iter-2 contract updated** (cells in DOM, hidden via CSS for 3-card default):

- FT `test_picker_does_not_render_forsaken_positions` → renamed to `test_picker_hides_six_card_only_positions_by_default` — asserts the 3 cells are in the DOM but `is_displayed() == False` so iter-3's spread switch can reveal them via CSS without re-rendering.
- IT `test_picker_does_not_render_forsaken_positions` → renamed to `test_picker_renders_six_card_only_positions_for_spread_switch` — assertContains the classes (server now renders them unconditionally).

**Tests**:

- 4 FTs in new `MySeaSpreadFormTest`: combobox renders 6 options + 2 dividers w. correct labels, default is Situation/Action/Outcome (hidden input value + visible current-label span + cross's data-spread-shape), picking Celtic Cross flips data-spread-shape to six-card + reveals crown/lay/cross, form col carries DECKS swatches + LOCK HAND + DEL + reversal-% caption. Combobox `<li>` options are inside `aria-expanded='false'` listbox → use `get_attribute("textContent")` not `.text` (which returns "" for Selenium-hidden elements).
- 7 ITs in new `MySeaSpreadFormTemplateTest`: default_spread + reversals_pct context keys, all 6 options + both labels render, 2 dividers render w. expected text, default option carries aria-selected="true", cross's initial data-spread-shape="three-card", form col DECKS + buttons + reversal hint render.

Tests: 32/32 FT green across test_bill_my_sign + test_game_my_sea; 1048/1048 IT/UT green in 52s.

Card-draw mechanics (clicking a deck swatch deposits a card into the next empty slot; LOCK HAND commits the draw) defer to iter 4 — this iter ships the spread-selection + layout-shape switch UI; the buttons are stubs (LOCK HAND starts disabled, DEL is a placeholder).

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Sonnet 4.6 <noreply@anthropic.com>

src/apps/gameboard/views.py

@@ -193,6 +193,11 @@ def my_sea(request):
         # `.suit_icon` resolve at render time.
         "significator": request.user.significator,
         "significator_reversed": request.user.significator_reversed,
+        # Sprint 5 iter 3 — SPREAD dropdown defaults to Situation/Action/
+        # Outcome (a 3-card spread) per user-locked spec; `reversals_pct`
+        # is a placeholder UI value pending the per-user setting.
+        "default_spread": "situation-action-outcome",
+        "reversals_pct": 25,
         "page_class": "page-gameboard page-my-sea",
     })